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YOKOKAWA Hirokazu
Institute for Promotion of Higher Education / School of Languages and Communication
Professor

Researcher basic information

■ Research Keyword
  • Psycholinguistics
  • English Language Teaching
■ Research Areas
  • Humanities & social sciences / Foreign language education
■ Committee History
  • 関西英語教育学会, 会長
  • 全国英語教育学会, 理事

Research activity information

■ Paper
  • The Influence of Spatial Concepts on Acquisition of Prepositions for Japanese EFL learners: A study using a nonverbal similarity judgment task and an oral recall task.
    Nakagawa, A., Yokokawa, H.
    2024, Journal of the Japan Society for Speech Sciences, 25, 49 - 68
    [Refereed]

  • How reading aloud and shadowing affect Japanese EFL learners' grammatical knowledge and processing.
    Shimizu Y., Yokokawa, H.
    2024, Journal of the Japan Society for Speech Sciences, 25, 27 - 48
    [Refereed]

  • Effects of Experience-based Learning on Japanese EFL Learners’ Relative Clause Processing: Evidence from Syntactic Priming by Self-paced Reading Procedure.
    Hirano, A., Yokokawa, H.
    2024, JACET Journal, 68, 9 - 26
    [Refereed]

  • Hirokazu Yokokawa, Hiroki Tanaka, Satoshi Nakamura, Koji Shimada, Tomoyuki Narumi, Mayu Hamada
    There is a need for better communication as globalisation continues apace and, therefore, learning a foreign language could be considered more important than ever before. Professor Hirokazu Yokokawa is a psycholinguistic expert based at Kobe University and believes that improving one's English language ability is essential to living better in a global society. He is currently working to utilise knowledge communication technology to develop a learning training system in collaboration with engineering and neurology researchers. When it comes to communicating in a foreign language, Yokokawa's approach is to offer the text during the retelling task so that the learner can focus on training in grammar coding processing as the initial conceptualisation sub-task has been reduced, thereby promoting the automation of language processing and improving social skills. Yokokawa and his collaborators have carried out a user survey to determine users' preferences with regards to feedback on their learning and they plan to conduct further investigations to decipher the type of virtual agent behaviour that is preferred by the majority of users and whether this has an impact on training. The researchers' learning system includes interaction with avatars with a view to increase users' subjective assessment of their own speaking abilities and decrease nervousness associated with interacting with an unfamiliar person, ultimately helping users to feel more at ease.
    Science Impact, Ltd., Mar. 2023, Impact, 2023(1) (1), 47 - 49
    Scientific journal

  • 初級の日本人英語学習者の前置詞習得と母語の影響－inとonに焦点を当てて－
    中川梓, 横川博一
    2023, 電子情報通信学会技術研究報告, TL-2023-8, 7-12.

  • Eri Nakagawa, Takahiko Koike, Motofumi Sumiya, Koji Shimada, Kai Makita, Haruyo Yoshida, Hirokazu Yokokawa, Norihiro Sadato
    Japanese English learners have difficulty speaking Double Object (DO; give B A) than Prepositional Object (PO; give A to B) structures which neural underpinning is unknown. In speaking, syntactic and phonological processing follow semantic encoding, conversion of non-verbal mental representation into a structure suitable for expression. To test whether DO difficulty lies in linguistic or prelinguistic process, we conducted functional magnetic resonance imaging. Thirty participants described cartoons using DO or PO, or simply named them. Greater reaction times and error rates indicated DO difficulty. DO compared with PO showed parieto-frontal activation including left inferior frontal gyrus, reflecting linguistic process. Psychological priming in PO produced immediately after DO and vice versa compared to after control, indicated shared process between PO and DO. Cross-structural neural repetition suppression was observed in occipito-parietal regions, overlapping the linguistic system in pre-SMA. Thus DO and PO share prelinguistic process, whereas linguistic process imposes overload in DO.
    Frontiers Media SA, Jan. 2022, Frontiers in Human Neuroscience, 15
    Scientific journal

  • Eri Nakagawa, Takahiko Koike, Motofumi Sumiya, Koji Shimada, Kai Makita, Haruyo Yoshida, Hirokazu Yokokawa, Norihiro Sadato
    Japanese English learners have difficulty speaking Double Object (DO; give B A) than Prepositional Object (PO; give A to B) structures which neural underpinning is unknown. In speaking, syntactic and phonological processing follow semantic encoding, conversion of non-verbal mental representation into a structure suitable for expression. To test whether DO difficulty lies in linguistic or prelinguistic process, we conducted functional magnetic resonance imaging. Thirty participants described cartoons using DO or PO, or simply named them. Greater reaction times and error rates indicated DO difficulty. DO compared with PO showed parieto-frontal activation including left inferior frontal gyrus, reflecting linguistic process. Psychological priming in PO produced immediately after DO and vice versa compared to after control, indicated shared process between PO and DO. Cross-structural neural repetition suppression was observed in occipito-parietal regions, overlapping the linguistic system in pre-SMA. Thus DO and PO share prelinguistic process, whereas linguistic process imposes overload in DO.
    2021, Frontiers in human neuroscience, 15, 753245 - 753245, English, International magazine
    Scientific journal

  • How Animacy Information Affects Syntactic and Semantic Structure Construction in L2 Sentence Comprehension: Psycholinguistic Experiments on Relative Clauses and Passives.
    HIRANO AYAKO, YOKOKAWA HIROKAZU
    外国語教育メディア学会, 2017, Language Education & Technology, (54) (54), 83 - 112, English
    [Refereed]
    Scientific journal
    Link to Kobe Univ. Repository (Kernel)

  • Effects of Modality Differences on Syntactic Priming in the Language Production of Japanese EFL Learners.
    HAMADA MAYU, YOKOKAWA HIROKAZU
    外国語教育メディア学会, 2017, Language Education & Technology, (54) (54), 55 - 82., English
    [Refereed]
    Scientific journal
    Link to Kobe Univ. Repository (Kernel)

  • Building a Database of Sentence Construction Familiarity of Japanese EFL Learners: Pilot Study.
    YOKOKAWA HIROKAZU, Yabuuchi, S, Satoi, H, Bando, M, Narumi, T, Hashimoto, K, Hamada, M, Hirano, A, Harada, Y
    電子情報通信学会, 2017, 電子情報通信学会技術研究報告『信学技報』, 117(149) (149), 57 - 62, English
    Scientific journal

  • 日本人英語学習者の統語処理の困難性が推論に及ぼす影響－語彙性判断課題による検討
    榊原 啓子, YOKOKAWA HIROKAZU
    電子情報通信学会, 2016, 電子情報通信学会技術研究報告『信学技報』, 115(442) (442), 35 - 40, Japanese
    Scientific journal

  • 第二言語文理解において名詞の有生性情報が統語-意味構造の構築に及ぼす影響－関係節文・受動文を用いた行動実験による検討－
    HIRANO AYAKO, YOKOKAWA HIROKAZU
    電子情報通信学会, 2016, 電子情報通信学会技術研究報告『信学技報』, 116(242) (242), 41 - 46, Japanese
    Scientific journal

  • 心的プロセスから見た外国語の処理と学習－授業実践と基礎研究のインターラクション－
    YOKOKAWA HIROKAZU
    大阪大学, 2016, サイバーメディアフォーラム, (17) (17), 5 - 10, Japanese
    Scientific journal

  • 言語性コミュニケーションにおけるWe-mode形成の役割と可能性
    YOKOKAWA HIROKAZU
    心理学評論刊行会, 2016, 心理学評論, 50(3) (3), 292 - 307, Japanese
    [Refereed]
    Scientific journal

  • モダリティの違いが日本人英語学習者の第二言語産出時の統語的プライミング効果に及ぼす影響
    HAMADA MAYU, YOKOKAWA HIROKAZU
    電子情報通信学会, 2016, 電子情報通信学会技術研究報告『信学技報』, 116(242) (242), 47 - 52, Japanese
    Scientific journal

  • Do Japanese EFL learners make use of animacy information when parsing an object relative clause? -A comparison between auditory and visual presentation.
    Hirano, A, YOKOKAWA HIROKAZU
    電子情報通信学会, 2016, 電子情報通信学会技術研究報告『信学技報』, 115(361) (361), 23 - 28, English
    Scientific journal

  • K. Shimada, M. Hirotani, H. Yokokawa, H. Yoshida, K. Makita, M. Yamazaki-Murase, H. C. Tanabe, N. Sadato
    Aug. 2015, NEUROSCIENCE, 300(6) (6), 474 - 492, English
    [Refereed]
    Scientific journal

  • Use of Lexical Stress Information in Silent Reading and Speech Production by Japanese Learners of English: Evidence From Eye Movement Measurements and Naming Tasks.
    WATANABE, HIROKI, YOKOKAWA HIROKAZU
    Phonological representation during silent reading as well as speech production includes lexical stress information (Ashby & Clifton, 2005). This study investigated use of such information during silent reading and speech production for Japanese learners of English (JLE) by conducting three kinds of tasks. Eye movements were monitored while pardcipants read words with primary stress (single stress condition) and words with primary and secondary stress (double stress condition) in sentence contexts silently. In the production test, participants read aloud target words. In the test for explicit knowledge, participants answered the place of stressed syllable. The result showed that reading times in double stress condition were longer than single stress condition, but the difference was marginally significant. The judgment by L1 speakers of English and acoustic analysis showed that JLE realized lexical stress in speech production. A test for explicit knowledge showed that most participants answered primary stress in single stress condition, but not secondary stress in double stress one. These results suggest the tendency that JLE use lexical stress information in both modalities regardless of explicit knowledge, but asymmetric patterns of use of the information between modalities were observed.
    Japan Association of College English Teachers, 2015, JACET Journal, (59) (59), 111 - 129, English
    [Refereed]
    Scientific journal

  • Repeated exposure effects on Japanese EFL leraners' relative clause processing: Evidence from a self-paced reading experiment
    SAKAKIBARA KEIKO, YOKOKAWA HIROKAZU
    ことばの科学会事務局, 2015, Journal of the Japan Society for Speech Sciences, (16) (16), 36 - 58, English
    [Refereed]
    Scientific journal

  • 日本人英語学習者の母音挿入と語彙表象構築の関係性
    大城 卓也, YOKOKAWA HIROKAZU
    The present study investigated the influence of Japanese English learners' vowel epenthesis on lexical representation of novel words. Participants learned CCVCC novel words that are similar to existing English words for two days. After the novel word learning, participants joined a priming experiment. The study revealed following three points. (1) In line with previous studies, learnt novel words engaged in lexical competition after 24 hours including sleep. (2) This study used relatively short one syllable novel words (CCVCC), but lexical competition effects were clearly observed. (3) Lexical representation varied by the presence or absence of vowel epenthesis. Low epenthesis group showed a statistically significant difference between closed syllable condition (CCVCC) and open syllable condition (CVCVCVCV) in a naming task. On the contrary, high epenthesis group did not show such a difference. These results suggest that establishment of a lexical representation is influenced by vowel epenthesis.
    The Institute of Electronics, Information and Communication Engineers, 2014, 電子情報通信学会技術研究報告『信学技報』, 114(243) (243), 19 - 22, Japanese
    Scientific journal

  • 短期海外英語研修が日本人英語学習者のスピーキングにおける語彙使用に及ぼす影響
    濱田 真由, YOKOKAWA HIROKAZU
    In the present study, a speaking task was conducted to investigate how a short-term overseas training program impacted EFL learners' speaking output with a special focus on vocabulary. Thirty Japanese undergraduate learners who participated in a three-week overseas training program were asked to describe three pictures in the speaking task. The same topics were used in the Pre and Post-test without previous notice in the writing task. The results showed increases in Tokens and Types, indicating that learners produced more and used a larger variety of words in the Post-test. Furthermore, the 2,000 word levels were reinforced. The results indicate that even in the short term, lexical search and retrieval processes had improved and led to an increase in spoken vocabulary after a three-week overseas training program
    The Institute of Electronics, Information and Communication Engineers, 2014, 電子情報通信学会技術研究報告『信学技報』, 114(385) (385), 13 - 18, Japanese
    Scientific journal

  • Kai Makita, Mika Yamazaki, Hiroki C. Tanabe, Takahiko Koike, Takanori Kochiyama, Hirokazu Yokokawa, Haruyo Yoshida, Norihiro Sadato
    Dec. 2013, MIND BRAIN AND EDUCATION, 7(4) (4), 213 - 224, English
    [Refereed]
    Scientific journal

  • 音読・シャドーイングが日本人EFL学習者の文法習得に与える効果
    清水保宏, 横川博一
    2013, 電子情報通信学会技術研究報告, TL-2023-１２, 1-6.

  • 日本人英語学習者の文処理時における言語情報への敏感さに熟達度が与える影響－事象関連電位測定実験による神経脳科学的検討－
    YOKOKAWA HIROKAZU
    In this study, an event-related potential (ERP) experiment was conducted to investigate Japanese EFL learners' sensitivity to linguistic information, including morphosyntactic (regular/irregular verb), semantic, and phrase structural information, during sentence processing. Learners with intermediate and lower proficiency participated in the experiment and read sentences with correct or incongruent information. The results revealed that Japanese EFL learners are sensitive to the morphosyntactic information of the regular verb and the semantic information, but they are not sensitive to the morphosyntactic information of the irregular verb and the phrase structural information. These results indicate that morphosyntactic and phrase structural processing are not as automatic for Japanese EFL learners.
    The Institute of Electronics, Information and Communication Engineers, 2013, 電子情報通信学会技術研究報告『信学技報』, 113(174) (174), 13 - 18, Japanese
    Scientific journal

  • 日本人英語学習者の言語情報への繰り返し接触が文処理に与える影響 －事象関連電位測定実験による検討－
    YOKOKAWA HIROKAZU
    2013, 電子情報通信学会技術研究報告『信学技報』, 113(354) (354), 65 - 70, Japanese
    Scientific journal

  • 日本人英語学習者の英文黙読中の単語認知および英単語発話時における語強勢情報利用の非対称性
    YOKOKAWA HIROKAZU
    It is known that phonological representation during silent reading by native speakers of English includes prosodic representation like lexical stress. This study was conducted to investigate Japanese EFL learners' use of lexical stress information during silent reading and speech production. The use of lexical stress information during silent reading was tested through eye movement measurements. Reading times of four-syllable words with two stressed syllables were compared to reading times of four-syllable words with one stressed syllable. In the production test, participants read English words aloud, and their sound data were rated for correctness of stress position by native speaker of English. As a result, during silent reading the overall reading times of words were significantly long. In the production test, the rating for words with two stressed syllables significantly lower than words with one stressed syllables. Out of the 17 participants, no participant used lexical stress information both during silent reading and production, only 6 participants used such information in either modality. These results suggest the difficulty of use of lexical stress information in both modalities and asymmetry of the use of the information between modalities for Japanese learners of English.
    The Institute of Electronics, Information and Communication Engineers, 2013, 電子情報通信学会技術研究報告『信学技報』, 113(253) (253), 7 - 12, Japanese
    Scientific journal

  • 日本人英語学習者のL2文産出処理の自動化に伴う神経基盤の変化：fMRI実験による検討
    YOKOKAWA HIROKAZU
    Previous syntactic priming study on Japanese English as a foreign language (EFL) learners has shown different priming rate subject to the learners' proficiency level. The present study investigated the neuralsubstrates of syntactic priming in Japanese EFL learners, and how it would change as they became more proficient speakers. The activation difference between when sentences with syntactic structures were repeatedly produced and when no syntactic structure was produced in the previous trial was compared between subjects. As a result, the difference was larger among lower proficiency participants than the higher proficiency participants in the anterior cingulate cortex.
    The Institute of Electronics, Information and Communication Engineers, 2013, 『信学技報』, 113(113(354),) (113(354),), 59 - 64, Japanese
    Scientific journal

  • フィードバックが日本人英語学習者の第二言語ライティング・プロセスにおける気づきに及ぼす影響.
    YOKOKAWA HIROKAZU
    2013, 電子情報通信学会技術研究報告『信学技報』, Japanese
    Scientific journal

  • YOKOKAWA HIROKAZU
    The present study aims to examine how the lexical retrieval process affects oral sentence production of second language (L2) learners through a syntactic priming experiment. Forty six Japanese EFL learners participated in a picture description task. The participants were divided into four proficiency groups. They were asked to read the prime sentence aloud, and then to describe a picture with a single sentence. In total, 60 different pictures were used. The participants encountered each picture twice during the experiment. The pictures were shown with the objects' names written on the pictures (with-word condition) one time, and were shown without the names written (without-word condition) one time. Overall, the syntactic priming effect was observed in the without-word condition. When compared by proficiency, the upper intermediate groups exhibited syntactic priming effects both in the with and without-word conditions. The priming effect was found only in the without-word condition, in the lower intermediate group. No syntactic priming effect was found in the upper or lower groups in either condition. Considering the residual activation account, the results indicate that the way the combinatorial nodes are activated differ depending on the learners' proficiency. The results also indicate that syntactic activation is suppressed when lexical processing requires a greater cognitive load.
    全国英語教育学会, 2013, Annual Review of English Language Education in Japan, 24(24) (24), 189 - 204, English
    [Refereed]
    Scientific journal

  • Proficiency and Working Memory Effects on the Use of Animacy and Morphosyntactic Information in Comprehending Temporary Ambiguous Sentences by Japanese EFL Learners -An Eye-tracking Study-
    YOKOKAWA HIROKAZU
    ことばの科学会, 2013, 『ことばの科学研究』, (14) (14), 19 - 42, English
    [Refereed]
    Scientific journal

  • 日本人英語学習者の言語産出における統語的プライミングにインプットのモダリティおよび接触回数が及ぼす影響
    YOKOKAWA HIROKAZU
    2012, 電子情報通信学会『信学技法』, (112 (139)) (112 (139)), 83 - 88, Japanese
    Scientific journal

  • 日本人英語学習者の一時的構造曖昧文の理解における有生性・動詞の形態統語情報の利用に熟達度・ワーキングメモリ要領が及ぼす影響－眼球運動測定実験による心理言語学的検討－
    YOKOKAWA HIROKAZU
    In this study, an eye-tracking experiment was conducted to investigate how Japanese EFL learners with intermediate proficiency process temporary ambiguous sentences from the perspective of their use of semantic and morphosyntactic information. The effects of the improvement of proficiency within the intermediate group and the increase of working memory capacity were also considered. The results revealed that Japanese EFL learners can use the information of animacy to facilitate sentence processing as their proficiency improves. However, they do not always use the morphosyntactic information effectively for sentence processing and there were few effects of proficiency and working memory capacity for reading sentences containing reduced relative clauses. These results indicate that Japanese EFL learners rely on the semantic and other information for sentence processing and that the use of the syntactic information is absent.
    The Institute of Electronics, Information and Communication Engineers, 2012, 電子情報通信学会『信学技法』, 112(112 (139)) (112 (139)), 89 - 94, Japanese
    Scientific journal

  • キーワードへのフォーカス，熟達度，ワーキングメモリ容量が日本人英語学習者の文章理解に及ぼす影響－視線計測を指標にした心理言語学実験による検討－
    YOKOKAWA HIROKAZU
    There is a wide range of individual differences in reading ability in English among Japanese EFL learners. The present study was conducted to examine the effects of proficiency, working memory capacity, and focusing task on text comprehension and reading behavior of Japanese graduate and undergraduate students. The results of this experiment indicate that proficiency is the major determinant of the individual differences in text comprehension in English. However, there was no correlation between reading comprehension scores and reading span test scores, which means that working memory capacity alone can't explain the differences of reading comprehension ability. As keyword detection task improved the reading comprehension and reading behavior, appropriate tasks are likely to facilitate text comprehension.
    The Institute of Electronics, Information and Communication Engineers, 2012, 電子情報通信学会『信学技法』, 112(339) (339), 83 - 88, Japanese
    Scientific journal

  • YOKOKAWA HIROKAZU
    神戸大学国際コミュニケーションセンター, 2012, 『神戸大学国際コミュニケーションセンター論集』, 8(8) (8), 37 - 49, English
    Research institution
    Link to Kobe Univ. Repository (Kernel)

  • リーディングスパンテストの再生成績に影響を与える処理要因―日本人英語学習者を対象にした実証研究
    横川 博一
    Nov. 2011, 電子情報通信学会『信学技報』, 2011-11, 49-54, Japanese
    Scientific journal

  • Determinant processing factors of recall performance in reading span tests: An empirical study of Japanese EFL learners
    横川 博一
    This paper reports on experiments examining the effect of processing cognitive load on storage functions during the performance of different types of reading span tests (RST). It further explores the relationship between RST scores and the English proficiency among Japanese EFL learners. We used four types of RSTs-a standard version (RST 1), an RST with a Japanese-translation verification task (RST 2), an RST with a grammatical judgment task (RST 3), and an RST with a semantic judgment task (RST 4). Two types of English proficiency tests were also administered-a grammar test and a reading comprehension test. The results showed that the span scores of the RST 3 were significantly lower than those of the other RSTs, irrespective of scoring methods. In addition, the span scores of the RSTs 2 and 3 correlated significantly with both the grammar and reading test scores, irrespective of scoring methods and weighting conditions. These results suggest that syntactic processing places a heavy cognitive load on working memory (WM) resources, thereby leaving few resources for storage functions while Japanese EFL learners are performing the RSTs. They also suggest that their English proficiency largely depends on the degree of automatization of syntactic processing.
    Japan Association of College English Teachers, Sep. 2011, 大学英語教育学会紀要JACET BULLETIN, 53,93-108(53) (53), 93 - 108, English
    [Refereed]
    Scientific journal

  • 小学校外国語活動におけるICT教材の意義と効果的な活用法
    Yokokawa, Hirokazu
    CIEC, Dec. 2010, コンピュータ利用教育協議会CIEC会誌『コンピュータ＆エデュケーション』, 29, 36-41, 36 - 41, Japanese
    [Refereed]
    Scientific journal

  • Yokokawa, Hirokazu
    This study investigated the use of verb subcategorization information during sentence comprehension by Japanese EFL learners, using a self-paced reading task with the embedded anomaly technique. In order to observe when the syntactic structure was determined, filler-gap sentences were constructed as stimuli. Four types of verbs were used: simple transitive verbs, dative verbs, infinitive complement verbs and intransitive preference verbs. The plausibility of the direct object of the embedded verb was also manipulated. The results demonstrate that the high proficiency learners utilize verb subcategorization information of simple transitive verb; however they do not use it automatically as natives. The results also indicate that they cannot utilize that of other types of verbs. The low proficiency learners show the difficulty in processing the sentences with long-distance dependencies.
    The Japan Society of English Language Education, Jun. 2010, Annual Review of English Language Education, 21, 61-70, 61 - 70, English
    [Refereed]
    Scientific journal

  • 日本人英語学習者の閉鎖曖昧文のオンライン処理に韻律情報が与える影響
    Yokokawa, Hirokazu
    ことばの科学会事務局, May 2010, ことばの科学会紀要『ことばの科学研究』, 11, 59-76(11) (11), 59 - 76, Japanese
    [Refereed]
    Scientific journal

  • Verb lexical representation of Japanese EFL learners: Syntactic priming during language production
    Yokokawa, Hirokazu
    ことばの科学会事務局, May 2010, ことばの科学会紀要『ことばの科学研究』, 11, 29-43(11) (11), 29 - 43, English
    [Refereed]
    Scientific journal

  • 英語読解指導における状況モデルを活かしたタスク活動の効果
    横川 博一
    Mar. 2010, 関西英語教育学会紀要『英語教育研究』, 33, 51-60, Japanese
    [Refereed]
    Scientific journal

  • 熟達度が第二言語文理解における動詞他動性情報の利用に与える影響
    横川 博一
    The present study aims to examine the development of automaticity in second language (L2) sentence processing from the viewpoint of the efficiency in the utilization of verb transitivity information in real time L2 sentence comprehension. To achieve this goal, a self-paced reading task was conducted with Japanese university students at different proficiency levels in L2 English, using a type of garden-path sentences as stimuli. The predicted garden-path effect was not evident for lower-level learners while higher-level learners showed a significant, though weaker than the native speaker control group, processing effect. The findings suggest that it is difficult even for advanced-level L2 learners to fully utilize verb transitivity information in real time sentence comprehension.
    The Institute of Electronics, Information and Communication Engineers, Nov. 2009, 電子情報通信学会『信学技報』, 2009-11, 51-56(297) (297), 51 - 56, Japanese
    Scientific journal

  • 未知語の模倣と反復における語彙学習の神経基盤と自動化プロセス
    Yokokawa, Hirokazu
    The purpose of this study is to reveal how the human brain works while learners are imitating and repeating. We conducted the functional MRI (fMRI) during practice of imitation of foreign words by native subjects. The findings indicate that the neural substrates of the vocal imitation learning are left lateralized frontal mirror neuron system. In order to ensure the effectiveness of the fMRI results, the psychophysical test of medical words, technical and unknown words for the subjects, was conducted. The results show the learning effect of the repetitive observation without overt pronunciation. This study took the first step to illuminate the process of automatization.
    The Institute of Electronics, Information and Communication Engineers, Jul. 2009, 電子情報通信学会『信学技報』, 7, 17-22(140) (140), 17 - 22, Japanese
    Scientific journal

  • 日本人英語学習者の統語範疇知識と読解力の関係—質問紙を用いたオフライン法による検討
    横川 博一
    Mar. 2009, 関西英語教育学会紀要, 32, 127-136, Japanese
    [Refereed]
    Scientific journal

  • 大学初年次における読解力向上のための基礎的研究
    横川 博一
    Mar. 2009, 関西国際大学研究紀要, 10, 137-149, Japanese
    Scientific journal

  • YOKOKAWA, Hirokazu
    神戸大学国際コミュニケーションセンター, Mar. 2008, 神戸大学国際コミュニケーションセンター論集, 4, 105-122, 105 - 122, Japanese
    Scientific journal
    Link to Kobe Univ. Repository (Kernel)

  • Frequency and Familiarity of Vocabulary in the Spontaneous Speech of Japanese EFL Learners
    YOKOKAWA, Hirokazu
    Mar. 2007, 『神戸大学国際コミュニケーションセンター論集』, 3, 1-19, Japanese
    Scientific journal
    Link to Kobe Univ. Repository (Kernel)

  • YOKOKAWA HIROKAZU
    Word familiarity is one of the lexical attributes that has a great influence both on language comprehension and production. We define word familiarity as the degree to which one feels a certain word is heard or seen in his/her daily life. Our large-scale research project has already surveyed English word familirity presented in a visual manner by Japanese EFL learners, using an off-line method (Yokokawa,ed., 2006). In this paper, we report the results offamiliarity ratings for English words presented in an auditory manner by Japanese EFL learners, and compare the effects of auditory and visual presentation on English word familiarity ratings.
    外国語教育メディア学会, Mar. 2007, Language Education & Technology, 44(44) (44), 205 - 214, English
    [Refereed]
    Scientific journal

  • Vocabulary and Response Latencies in the Spontaneous Speech of Japanese EFL Learners_An Analysis of Data from a Short-term Overseas Study Tour_
    YOKOKAWA, Hirokazu, YABUUCHI, Satoshi, SUZUKI, Masanori, MORISHITA, Miwa
    This study reports the results of a lexical analysis and measurement of real-time response latencies in the spontaneous speech of Japanese EFL learners who participated in a short-term (three week) overseas study tour. Thirty-four subjects took the SET-10 Spoken English Test developed by Ordinate Corporation before and after the study tour. This test evaluated the ability of test-takers to understand spoken English and express themselves clearly and appropriately in English. We analyzed the speech data (SET-10 Part E: Open Questions) in terms of (1) lexical points of view such as token, types, and word families, and (2) the response latencies during speech. The results are discussed in terms of cognitive processing in speech production by Japanese EFL learners.
    The Institute of Electronics, Information and Communication Engineers, Nov. 2006, 電子情報通信学会『信学技報』, 11, 13-18(363) (363), 13 - 18, Japanese
    [Refereed]
    Scientific journal

  • Off-line and On-line Study on Processing of Garden Path Sentences by Japanese EFL Learners
    YOKOKAWA, Hiroakzu
    Japan Association of College English Teachers, Oct. 2005, 大学英語教育学会紀要JACET BULLETIN, 41, 173-189(41) (41), 173 - 189, English
    [Refereed]
    Scientific journal

  • Levels of Processing and Task Variations in the Acquisition of English Phrasal Verbs by Japanese University Students
    NAKAMOTO, Asami, YOKOKAWA, Hirokazu
    Mar. 2005, 国際コミュニケーションセンター論集, 第1号, 43-64, Japanese
    [Refereed]
    Scientific journal

  • Nakamoto Asami, Yokokawa Hirokazu
    Kobe University, 2004, Journal of the School of Languages and Communication, Kobe University, 1, 43 - 63, Japanese

  • Lexical-based sentence parsing model: processing of GP sentences
    YOKOKAWA, Hirokazu, YABUUCHI, Satoshi, SATOI, Hisaki
    Oct. 2002, 関西言語学会(KLS)紀要, 22, 7-17, Japanese
    [Refereed]
    Scientific journal

  • YOKOKAWA, Hirokazu, YABUUCHI, Satoshi, KADOTA, Syuhei, NAKANISHI, Yoshiko, NORO
    Extensive research has been conducted about the L2 mental lexicon from cross-linguistic perspective. According to Aitchison (1994), children are to go through the three related but d[ferent stages in acquiring the meaning of words in L1. labeling, packaging, and network-building. So far, in the L2 studies of vocabulary acquisition, attention has been paid to labeling and packaging processes of word meaning, and network-construction seems the most neglected area of study. In the present study, we have examined some aspects of the semantic network-building in both English and Japanese by using the meaning-based word association task Jar the meaning-familiar stimulus words. Results showed that there is a great deal of similarity between English and Japanese association patterns, but that the degree of matching rate between Japanese and English associations were not so high (approximately 50-60%). Based on these results, we will discuss the organization of Japanese and English mental lexicon Jar Japanese EFL leaners and the relationships between LI and L2 mental lexicon.
    The Japan Association for Language Education and Technology, Jun. 2002, 外国語教育メディア学会紀要Language Education & Technology, 39, 21-40, 21 - 39, English
    [Refereed]
    Scientific journal

  • YOKOKAWA, Hirokazu
    This paper describes three psycholinguistic experiments on anaphoric resolution during sentence comprehension in Japanese. In Japanese language, there is a postposition "wa" which signifies "topic" and "ga" which signifies "(grammatical) subject". Experiment 1 investigated the influence of the difference between "wa" and "ga" to assign ambiguous pronouns. In a self-paced reading paradigm, reading times were longer subject noun phrase than object noun phrase, irrespective of the difference of postposition, and there were more assignment to the topic noun phrase (Topic-NP: "NP+wa") than subject noun phase (Subject-NP: "NP+ga"). In a probe recognition task, reaction times (RTs) were faster subject (S-probe) than object (O-probe), and RTs for S-probe were faster Topic-NP sentence than Subject-NP sentence. Overall, the influence of topic was observed, thus suggesting that the topic assignment strategy (TAS) were utilized during the assignment of pronouns in Japanese. Experiment 2 investigated the influence of another heuristic strategies which have been proposed to account for the assignment of pronouns in sentences in English: the subject assignment strategy (SAS) and the parallel function strategy (PFS). Furthermore, Experiment 3 investigated to distinguish between the heuristic strategies: TAS, SAS, and PFS. In both Experiment 2 and 3, there was a strong preference assigning a pronoun to the preceding Topic-NP, thus showing TAS was predominantly used over other heuristic strategies. These findings support that Japanese has a linguistic nature of a topic prominent language.
    The Association for Natural Language Processing, Jul. 1999, 言語処理学会誌『自然言語処理』（「談話・対話の言語学的・心理学的モデル」特集号）, 6-4, 3-22(4) (4), 3 - 22, Japanese
    [Refereed]
    Scientific journal

  • 日本人英語学習者の照応関係理解における統語的制約と発見的ストラテジー
    YOKOKAWA, Hirokazu, MEGUMI, Tatsujiro
    Jun. 1999, 関西英語教育学会紀要『英語教育研究』, 22, 51-71, Japanese
    [Refereed]
    Scientific journal

  • リーディング指導12のアプローチ(1)～(12)
    HASHIMOTO, Msafumi, 高田 哲朗, 磯部 達彦, 境 倫代, 池村 大一郎, 横川 博一
    1999, 大修館書店『英語教育』, 47,, Japanese
    [Refereed]
    Scientific journal

  • 高等学校における多読指導の効果：読破ページ数上位群の分析
    ISOBE, Tatsuhiko, 境 倫代, 橋本 雅文, 高田 哲朗, 池村 大一郎, 横川 博一
    Nov. 1998, 関西英語教育学会研究紀要『英語教育研究』, 21, 21-32, Japanese
    [Refereed]
    Scientific journal

  • 日本語照応理解における発見的ストラテジー
    YOKOKAWA, Hirokazu
    Oct. 1998, 言語処理学会第４回年次大会論文集, 4, 143-146, Japanese
    [Refereed]
    Scientific journal

  • 日本語の照応関係解決の即時性
    YOKOKAWA, Hirokazu
    Oct. 1998, 日本認知科学会第15回大会論文集, 6, 282-283, Japanese
    [Refereed]
    Scientific journal

  • 実践研究：高等学校における英語多読指導
    HASHIMOTO, Msafumi, 高田 哲朗, 磯部 達彦, 境 倫代, 池村 大一郎, 横川 博一
    Feb. 1998, 大修館書店『英語教育』, 46-12, 74-76, Japanese
    [Refereed]
    Scientific journal

  • 高等学校における多読指導の効果に関する実証的研究
    HASHIMOTO, Msafumi, 高田 哲朗, 磯部 達彦, 境 倫代, 池村 大一郎, 横川 博一
    Nov. 1997, STEP Bullitin: 第９回「英検」研究助成報告, 9, 118-126, Japanese
    [Refereed]
    Scientific journal

  • 日本語文理解におけるガーデンパス化回避の要因について
    YOKOKAWA, Hirokazu, MATSUMOTO, Chikara, ICHIO, Akemi
    Jun. 1997, 日本認知科学会第14回大会論文集, 14, 180-181, Japanese
    [Refereed]
    Scientific journal

  • Ｌ２リーディングにおける語彙の統語的・意味的情報
    YOKOKAWA, Hirokazu
    Mar. 1997, 日本英語教育学会関西支部研究紀要『英語教育研究』, 20, 92-99, Japanese
    [Refereed]
    Scientific journal

  • 早期英語学習経験者の心的辞書に関する一考察
    MEGUMI Tatsujiro, YOKOKAWA, Hirokazu, MIURA, Ichiro
    日本児童英語教育学会事務局, Mar. 1997, 日本児童英語教育学会紀要, 16, 1-10(16) (16), 1 - 10, Japanese
    [Refereed]
    Scientific journal

  • 日本語文理解におけるImplicit Argumentと文脈効果
    YOKOKAWA, Hirokazu
    Mar. 1996, 言語処理学会第２回年次大会論文集, 2, 285-288, 285 - 288, Japanese
    [Refereed]
    Scientific journal

  • 早期英語学習経験者の中・高における成績
    MEGUMI, Tatsujiro, YOKOKAWA, Hirokazu, MIURA, Ichiro
    日本児童英語教育学会事務局, Mar. 1996, 日本児童英語教育学会紀要, 15, 27-35(15) (15), 27 - 35, Japanese
    [Refereed]
    Scientific journal

  • 高等学校『リーディング』教科書分析
    HASHIMOTO, Msafumi, TAKADA, Tetsuro, ISOBE, Tatsuhiko, IKEMURA, Daiichiro, YOKOKAWA, Hirokazu, TSUIDO, Seigo
    京都教育大学教育学部附属教育実践研究指導センター, Mar. 1996, 京都教育大学教育実践研究年報, 14, 159-177(12) (12), 159 - 177, Japanese
    [Refereed]
    Scientific journal

  • 動詞の情報量から見た日本語のパージング
    ICHIO, Akemi, 横川 博一
    Jun. 1995, 日本認知科学会第12回大会論文集, 12, 84-85, Japanese
    [Refereed]
    Scientific journal

  • 日本語の統語処理における語彙情報－言語心理学的アプローチ
    YOKOKAWA, Hirokazu
    This paper describes three experiments which examine how verb information affects sentence processing in Japanese. In Experiment 1, sentences containig either obligatory arguments or optional arguments or both were presented visually on minimum phrase basis (NP+P). The results showed that it took longer time to process optional adverbial phrases and that sentences lacking in obligatory arguments were more difficult to process. The results of Experiment 2 showed that it was the number of possibility of argument structure, not the mumber of argument that affects sentence processing. Experiment 3 examined when the final decision of syntactic structrure was made. The results showed that it was only at the end of the sentence that the final syntactic structure was decided.
    Information Processing Society of Japan (IPSJ), Jan. 1995, 情報処理学会『自然言語処理研究会報告』, 105-7, 39-44(8) (8), 39 - 44, Japanese
    [Refereed]
    Scientific journal

  • YOKOKAWA, Hirokazu
    This paper describes two experiments which examine how Japanese university students process syntactically ambiguous sentences in English. In Experiment 1, four sentences including prepositional phrases (PP) were presented visually word by word along with VP-biasing, NP-biasing, and Neutral contexts. The results showed that the preference toward VP attachment is not always observed, and the context affects the processing slightly. The results also showed that no significant difference is observed between English majors and non-English majors. In Experiment 2, sentences containing (1) NP_1 and NP_2's NP_3, (2) VP + NP + Relative -Clause + Adv., (3) Adj. + NP_1 and NP_2 constructions were presented in the same way as in Experiment 1 along with three kinds of context. The results showed that the extent to which context affects the processing of sentence parsing differs in each kind of sentence.
    The Japan Society of English Language Education, Aug. 1994, 全国英語教育学会紀要ARELE, 5, 111-120, 111 - 120, English
    [Refereed]
    Scientific journal

  • On-line processing of English prepositional phrases by Japanese university students
    MIURA, Ichiro, YOKOKAWA, Hirokazu
    Kyoto University of Education, Mar. 1994, 京都教育大学紀要, 84(84) (84), 53 - 60, English
    [Refereed]
    Scientific journal

  • On-line processing of English prepositional phrases by Japanese university students.
    YOKOKAWA HIROKAZU
    Kyoto University of Education, 1994, Bulletin of Kyoto University of Education, 84(84(A)) (84(A)), 53 - 60, English
    Research institution

■ MISC
  • 知識コミュニケーション技術を援用した英語学習システムの開発 : 基盤的英語力の育成をめざして—Development of an English Language Learning System Aided by Knowledge Communication Technology : Towards the Development of Fundamental English Language Skills—特集 デジタル化・DXによる外国語教育の新たな可能性
    横川 博一, 中村 哲, 田中 宏季, 島田 浩二, 鳴海 智之, 濱田 真由
    2022, コンピュータ&エデュケーション / CIEC会誌創刊準備号編集委員会 編, 53, 18 - 23, Japanese

  • 英語が上達する科学的学習法, 『最新科学で解き明かす最強の勉強法』
    YOKOKAWA HIROKAZU
    2016, 洋泉社MOOK, 43 - 56, Japanese
    [Invited]
    Others

  • 英語教育への脳科学的アプローチ(1)～(6)
    YOKOKAWA HIROKAZU
    大修館書店, 2015, 英語教育, Japanese
    [Invited]
    Others

  • How the modality in input and exposure effects affect syntactic priming in language production in Japanese EFL learners
    YONAMINE Yuki, YOKOKAWA Hirokazu
    In this study, syntactic priming method was used to reveal the process of learning syntactic structures in Japanese EFL learners We explored how differences in modality in input (spoken or written) affected language production and how increase of exposure to a specific syntactic structure affected language production The results suggested that there was no priming effect in a written condition, but spoken condition had pnming effects, and that cumulative effects were observed in all conditions between modalities and proficiencies after increase of exposure to a specific syntactic structure.
    The Institute of Electronics, Information and Communication Engineers, 22 Feb. 2013, Technical report of IEICE. Thought and language, 112(442) (442), 43 - 48, Japanese

  • 文法と語彙指導（特集：プラスαの語彙指導）
    YOKOKAWA HIROKAZU
    大修館書店, 2013, 『英語教育』, 61(12) (12), 34 - 36, Japanese
    Introduction scientific journal

  • 第二言語音声処理の自動化に関わる前頭前野二領域の脳活動の可塑的変化
    島田浩二, 島田浩二, 田邊宏樹, 横川博一, 吉田晴世, 牧田快, 山崎未花, 定藤規弘
    2012, 日本ヒト脳機能マッピング学会プログラム・抄録集, 14th, 67, Japanese

  • アウトプット活動で語彙力を伸ばす―言語運用能力につながる語彙力を
    YOKOKAWA HIROKAZU
    大修館書店, 2007, 『英語教育』, 55(13) (13), 20 - 23, Japanese
    Introduction scientific journal

  • Monthly Colum: Tips for EFL Vocabulary Instruction
    YOKOKAWA, Hirokazu
    Jun. 2004, 三省堂, ,, Japanese
    Introduction scientific journal

  • 学力低下論：<学力低下>が鳴らす警鐘―今こそ豊かな<ことばの教育>が求められている
    YOKOKAWA, Hirokazu
    Jul. 2001, 全国英語教育学会記念誌『日本における英語教育の将来』, ,, Japanese
    Introduction scientific journal

  • 未知語と出会う―推測力を高めて語彙力を補う方法
    YOKOKAWA, Hirokazu
    Jan. 2001, 英語教育, 50-12, 18-19, Japanese
    Introduction scientific journal

  • Second Language Mental Lexicon : Exploring Japanese EFL Learners' Lexical Competence and Access
    Kadota Shuhei, Nakanishi Yoshiko, Noro Tadashi, Yokokawa Hirokazu
    大学英語教育学会, 2000, JACET全国大会要綱, 39, 54 - 55, Japanese

  • Relevance of lexical information in Japanese sentence processing
    YOKOKAWA, Hirokazu
    Mar. 1996, 大阪大学修士論文, ,, English
    [Refereed]
    Others

  • 書評：一般教育書紹介『<検証>大学の冒険』
    YOKOKAWA, Hirokazu
    Jul. 1994, 英語教育, 43-4, 97, Japanese
    Introduction scientific journal

  • On-line processing of syntactically ambiguous sentences by native- and non- native speakers of English
    YOKOKAWA, Hirokazu
    Jan. 1994, 京都教育大学修士論文, ,, English
    [Refereed]
    Others

■ Books And Other Publications
  • 『外国語運用能力はいかに熟達化するか－言語情報処理の自動化プロセスを探る』
    YOKOKAWA HIROKAZU, 定藤 規弘, 吉田 晴世
    Joint editor, 松柏社, Mar. 2014, Japanese
    Scholarly book

  • NEW CROWN ENGLISH SERIES 1-3
    Hirokazu YOKOKAWA
    Joint work, SANSEIDO, Apr. 2012, English
    Textbook

  • 知へのステップ―大学生からのスタディ・スキルズ 第3版
    Yokokawa, Hirokazu
    Joint work, くろしお出版, Mar. 2011, Japanese
    Textbook

  • 子どもの認知と言語はどう発達するか―早期英語教育のための発達心理言語学
    Yokokawa, Hirokazu
    Joint translation, 松柏社, Aug. 2010, Japanese
    Scholarly book

  • 教育・研究のための第二言語データベース：日本人英語学習者の英単語親密度〈音声編〉
    Yokokawa, Hirokazu
    Joint work, くろしお出版, Jan. 2008, Japanese
    Scholarly book

  • CROWN PLUS English Series, Level 2
    Yokokawa, Hirokazu
    三省堂, Apr. 2007, English
    Textbook

  • Steps in Wisdom: Study Skills for College Students
    UEMURA, Kazumi, ARAI, Shintaro, UCHIDA, Mitsumi, NISHIKAWA, Mariko, FUJIKI, Kiyoshi, HORII, Yusuke, YOKOKAWA, Hirokazu
    Joint work, くろしお出版, Oct. 2006, Japanese
    Textbook

  • Handobook of Teaching English Vocabulary
    KADOTA, Shuhei, IKEMURA, Daiichiro, IZUMI, Emiko, SHIMIZU, Ichiro, MIZOHATA, Yasuyuki, TAKADA, Tetsuro, NISHIYAMA, Masaaki, YOKOKAWA, Hirokazu, SHIKI, Osato
    Joint work, 大修館書店, Oct. 2006, Japanese
    Scholarly book

  • Database for L2 Research & Pedagogy: English Word Familiarity for Japanese EFL Learners
    YOKOKAWA, Hirokazu
    Joint work, くろしお出版, Sep. 2006, Japanese
    Scholarly book

  • New Crown Englsih Series, 1-3
    TAKAHASHI, Sadao, YOKOKAWA, Hirokazu
    Single work, 三省堂, Apr. 2006, English
    Textbook

  • EXCEED Englsih Reading
    ISHIKAWA, Syoichi, YOKOKAWA, Hirokazu
    Joint work, 三省堂, Apr. 2005, Japanese
    Textbook

  • EXCEED Englsih Writing
    ISHIKAWA, Syoichi, YOKOKAWA, Hirokazu
    Joint work, 三省堂, Apr. 2004, Japanese
    Textbook

  • EXCEED English Series II
    ISHIKAWA, Syoichi, YOKOKAWA, Hirokazu
    Joint work, 三省堂, Apr. 2004, Japanese
    Textbook

  • BBC OK! English Grammar
    YOKOKAWA, Hirokazu
    Single translation, 三修社, Aug. 2003, Japanese
    Others

  • BBS OK! English Phrasal Verbs
    YOKOKAWA, Hirokazu
    Single translation, 三修社, Aug. 2003, Japanese
    Others

  • Mental Lexicon in English: Its acquisition/processing/and learning
    YOKOKAWA, Hirokazu
    Joint work, 松柏社, Jun. 2003, Japanese
    Scholarly book

  • EXCEED English Series I
    ISHIKAWA, Syoichi, YOKOKAWA, Hirokazu
    Joint work, 三省堂, Apr. 2003, Japanese
    Textbook

  • WISDOM Japanese-Englsih Dictionary
    YOKOKAWA, Hiroakzu
    Joint work, 三省堂, Jan. 2003, Japanese
    Others

  • Steps to Wisdon: Study Skills for College Students
    UEMURA, Kazumi, ARAI, Shintaro, UCHIDA, Mitsumi, NISHIKAWA, Mariko, FUJIKI, Kiyoshi, HORII, Yusuke, YOKOKAWA, Hirokazu
    Joint work, くろしお出版, Apr. 2002, Japanese
    Textbook

  • New Crown Englsih Series 1-3
    YOKOKAWA, Hirokazu
    Joint work, 三省堂, Apr. 2002, Japanese
    Textbook

  • 文理解プロセスから見たメンタルレキシコンの構造
    YOKOKAWA HIROKAZU
    Supervisor, 現代英語教育の言語文化学的諸相―斎藤栄二教授退官記念論文集 三省堂, Sep. 2001, Japanese, ISBN: 4385360782
    Scholarly book

  • 現代英語教育の言語文化学的諸相―斎藤栄二教授退官記念論文集
    YOKOKAWA, Hirokazu
    Joint work, 三省堂, Sep. 2001, Japanese
    Scholarly book

  • より良い英語授業を目指して―教師の疑問と悩みにこたえる
    YOKOKAWA, Hirokazu
    Joint work, 大修館書店, Apr. 2000, Japanese
    Scholarly book

  • ローレル総合英語
    YOKOKAWA, Hirokazu
    Joint work, 三省堂, Feb. 2000, Japanese
    Others

  • LAUREL English Grammar（ローレル英文法）
    YOKOKAWA, Hirokazu
    Joint work, 三省堂, Feb. 2000, Japanese
    Textbook

  • LAUREL English Grammar WORK- BOOK（ローレル英文法ワークブック）
    YOKOKAWA, Hirokazu
    Joint work, 三省堂, Feb. 2000, Japanese
    Textbook

■ Lectures, oral presentations, etc.
  • Building a Database of Sentence Construction Familiarity of Japanese EFL Learners: Pilot Study.
    YOKOKAWA HIROKAZU, Yabuuchi, S, Satoi, H, Bando, M, Narumi, T, Hashimoto, K, HIRANO AYAKO, HAMADA MAYU, Harada, Y
    電子情報通信学会 思考と言語研究会, Jul. 2017, Japanese, 東京, Domestic conference
    Poster presentation

  • Task Effects on On-line Processing of Linguistic Information during Sentence Comprehension by Japanese EFL Learners: A Self-Paced Reading Study.
    Narumi, T, Hashimoto, K, Nakanishi, H, YOKOKAWA HIROKAZU
    The 2017 Conference of the American Association for Applied Linguistics, Mar. 2017, English, Portland, Oregon, International conference
    Poster presentation

  • Effects of Modality Differences on Syntactic Priming in Language Production of Japanese EFL Learners.
    Hamada, M, YOKOKAWA HIROKAZU
    The 2017 Conference of the American Association for Applied Linguistics, Mar. 2017, English, Portland, Oregon, International conference
    Poster presentation

  • 日本人英語学習者の統語処理の困難性が文章に及ぼす影響：語彙性判断課題による検討
    SAKAKIBARA KEIKO, YOKOKAWA HIROKAZU
    電子情報通信学会 思考と言語研究会, Jan. 2016, Japanese, 東京, Domestic conference
    Oral presentation

  • Do Japanese EFL learners make use of animacy information when parsing an object relative clause? -A comparison between auditory and visual presentation
    HIRANO AYAKO, YOKOKAWA HIROKAZU
    電子情報通信学会 思考と言語研究会, Dec. 2015, English, 東京, Domestic conference
    Oral presentation

  • The enhanced consolidation of foreign word learning by overt pronunciation.
    Aoki, N, Sugawara, S, Hirotani, M, Okazaki, S, Yamazaki-Kindaichi, H, Yoshimoto, T, YOKOKAWA HIROKAZU, Yoshida, H, Sadato, N
    The 45th annual meeting of the Society for Neuroscience., Oct. 2015, English, Chicago, International conference
    Poster presentation

  • The neural substrates of syntactic processing by second language learners: Evidence from syntactic priming.
    Nakagawa, E, Koike, T, Makita, K, Shimada, K, Yoshida, H, YOKOKAWA HIROKAZU, Sadato, N
    第38回日本神経科学大会, May 2015, English, 神戸, Domestic conference
    Oral presentation

  • The Effects of Short-Term Overseas Training on Vocabulary Usage of Japanese L2 English Learners’ Speaking and Writing.
    Hamada, M, YOKOKAWA HIROKAZU
    The 2015 conference of the American Association for Applied Linguistics, Mar. 2015, English, Toronto, Canada, International conference
    Poster presentation

  • Exposure Effects on Sensitivity to Linguistic Information during Sentence Processing by Japanese Low-Proficiency EFL Learners: An ERP Study.
    Narumi, T, YOKOKAWA HIROKAZU
    The 2015 conference of the American Association for Applied Linguistics, Mar. 2015, English, Toronto, Canada, International conference
    Poster presentation

  • 短期海外英語研修が日本人英語学習者のスピーキングにおける語彙使用に及ぼす影響
    濱田 真由, YOKOKAWA HIROKAZU
    思考と言語研究会「言語運用と専門教育」, Dec. 2014, Japanese, 大阪電気通信大学, Domestic conference
    Oral presentation

  • 日本人英語学習者の母音挿入と語彙表象構築の関係性
    大城 卓也, YOKOKAWA HIROKAZU
    思考と言語研究会「言語処理と知識獲得, 一般」, Oct. 2014, Japanese, 機械振興会館, Domestic conference
    Oral presentation

  • 日本人英語学習者の関係節文理解における処理困難性に熟達度が及ぼす影響：Maze Taskによる検討
    藤田 如生, YOKOKAWA HIROKAZU
    第40回全国英語教育学会徳島研究大会, Aug. 2014, Japanese, 徳島大学, Domestic conference
    Poster presentation

  • 日本人英語学習の母音挿入が未知語習得に与える影響
    大城 卓也, YOKOKAWA HIROKAZU
    第40回全国英語教育学会徳島研究大会, Aug. 2014, Japanese, 徳島大学, Domestic conference
    Oral presentation

  • 繰り返し接触が日本人英語学習者の関係節構造処理に及ぼす影響 －自己ペース課題による検討－
    榊原 啓子, YOKOKAWA HIROKAZU
    第40回全国英語教育学会徳島研究大会, Aug. 2014, Japanese, 徳島大学, Domestic conference
    Poster presentation

  • 日本人英語学習者の単語音読時・黙読時における語強勢情報のオンライン利用 -反復接触による学習効果
    渡部 宏樹, YOKOKAWA HIROKAZU
    言語科学会第16回年次国際大会, Jun. 2014, Japanese, 文教大学越谷キャンパス, International conference
    Poster presentation

  • Sensitivity to Linguistic Information during Sentence Processing by Low-Proficiency Learners: An ERP Study of Japanese EFL Learners
    Narumi, T, Nagai, C, MATSUMOTO ERIKO, HAYASHI RYOKO, YOKOKAWA HIROKAZU
    American Association for Applied Linguistics, Mar. 2014, English, Portland, International conference
    Poster presentation

  • Syntactic priming effect during second language sentence production by Japanese learners of English: An fMRI study.
    Nakagawa, E, YOKOKAWA HIROKAZU, KOIKE, T, MAKITA, K, SHIMADA, K, YOSHIDA, H, SADATO, N
    Society for Neuroscience 2013, Nov. 2013, English, San Diego, International conference
    Poster presentation

  • 日本人英語学習者における英文黙読時の韻律表象の心的実在性に関する一考察―眼球運動測定による検討―
    渡部 宏樹, YOKOKAWA HIROKAZU
    第39回全国英語教育学会北海道研究大会, Aug. 2013, Japanese, 北星学園大学, Domestic conference
    Poster presentation

  • 短期海外英語研修が日本人英語学習者のライティング・プロセスに及ぼす影響:自由英作文における使用語彙分析
    濱田 真由, YOKOKAWA HIROKAZU
    第39回全国英語教育学会北海道研究大会, Aug. 2013, Japanese, 北星学園大学, Domestic conference
    Poster presentation

  • The Effects of Lexical Processing on Oral Sentence Production by L2 Learners: Syntactic Priming Experiment Using a Picture Description Task
    YOKOKAWA HIROKAZU
    American Association for Applied Linguistics, Mar. 2013, English, International conference
    Poster presentation

  • Left prefrontal activations are modulated by proficiency in spoken foreign language processing
    Hirokazu Yokokawa
    Society for Neuroscience 2012, Oct. 2012, English, New Orleans at the Ernest N. Morial Convention Center, International conference
    Poster presentation

  • 日本人英語学習者の文産出における統語的プライミング効果：語彙処理負荷と言語熟達度の違いが及ぼす影響
    横川 博一
    第38回全国英語教育学会愛知研究大会, Aug. 2012, Japanese, 愛知学院大学, Domestic conference
    Oral presentation

  • 第二言語音声処理の自動化に関わる前頭前野二領域の脳活動の可塑的変化
    横川 博一
    第14回日本ヒト脳機能マッピング学会, Jul. 2012, Japanese, 札幌京王プラザホテル, Domestic conference
    Poster presentation

  • 高校・大学レベルで音のインプットから始める英語プレゼンテーション方式の総合英語指導
    横川 博一
    外国語教育メディア学会（LET）関西支部2012年度春季研究大会, May 2012, Japanese, 大阪教育大学, Domestic conference
    Invited oral presentation

  • 第二言語習得研究の最前線：社会文化的アプローチと実証研究からの視点
    横川 博一
    第二言語習得研究の最前線：社会文化的アプローチと実証研究からの視点, Mar. 2012, English, 神戸大学, International conference
    Oral presentation

  • The effect of processing cognitive load on working memory: Performance of the Japanese EFL learners in reading span tests
    横川 博一
    American Association for Applied Linguistics 2012, Mar. 2012, English, Sheraton Boston, US, International conference
    Oral presentation

  • Cumulative effects of syntactic priming in written sentence production by Japanese EFL learners
    横川 博一
    American Association for Applied Linguistics 2012, Mar. 2012, English, Sheraton Boston, US, International conference
    Oral presentation

  • リーディングスパンテストの再生成績に影響を与える処理要因−日本人英語学習者を対象にした実証研究
    横川 博一
    電子情報通信学会思考と言語研究会, Nov. 2011, Japanese, 早稻田大学, Domestic conference
    Oral presentation

  • The role of the right cerebellum during foreign language vocabulary learning enhanced by the phonological loop: an fMRI study
    横川 博一
    Society for Neuroscience 2011, Nov. 2011, English, Washington, D.C., International conference
    Oral presentation

  • 英語コミュニケーションにおける外国語運用能力の自動化と授業実践
    YOKOKAWA HIROKAZU
    日本英語教育学会2011年度研究集会, Sep. 2011, Japanese, Domestic conference
    [Invited]
    Invited oral presentation

  • 日本人英語学習者の文処理プロセスにおける意味・形態統語情報の利用とワーキングメモリ容量
    横川 博一
    第37回全国英語教育学会山形研究大会, Aug. 2011, Japanese, 山形大学, Domestic conference
    Oral presentation

  • 英語コミュニケーション能力における発話力・対応力・言語処理能力－ピアソン社「Versant」テストの指標をもとに，英語力測定を検証－
    YOKOKAWA HIROKAZU
    （株）DISCO Global HE Seminar, Aug. 2011, Japanese, Domestic conference
    [Invited]
    Invited oral presentation

  • リーディングにおけるキーワード探索とディスカッションが状況モデル構築に与える影響
    横川 博一
    第37回全国英語教育学会山形研究大会, Aug. 2011, Japanese, 山形大学, Domestic conference
    Oral presentation

  • 日本人英語学習者の文処理プロセスにおける意味・形態統情報利用— 眼球運動測定による検討
    横川 博一
    日本言語科学会, Jun. 2011, Japanese, 関西大学, International conference
    Oral presentation

  • 日本人英語学習者の言語産出における統語的プライミングの累積効果
    横川 博一
    日本認知科学会, Jun. 2011, Japanese, 東京大学, Domestic conference
    Oral presentation

  • 第二言語学習者の文産出プロセスにおける文法コード化に関する研究：眼球運動測定による検討
    横川 博一
    日本言語科学会, Jun. 2011, Japanese, 関西大学, International conference
    Oral presentation

  • 英語コミュニケーションにおける外国語運用能力の自動化と授業実践
    横川 博一
    日本英語教育学会2011年度研究集会, Mar. 2011, Japanese, 早稲田大学, Domestic conference
    Oral presentation

  • The syntactic representation of Japanese EFL learners in language production: A study based on syntactic priming experiment
    横川 博一
    American Association of Applied Linguistics (AAAL2011), Mar. 2011, English, Chicago, US., International conference
    Poster presentation

  • How lexical information relates to sentence comprehension of Japanese EFL learners: Effects of exposure to specific syntactic structures
    横川 博一
    American Association of Applied Linguistics (AAAL2011), Mar. 2011, English, Chicago, US., International conference
    Poster presentation

  • 読解スキルを高めるための話し合いと絵描写タスクの効果－状況モデルに焦点を当てて－
    Yokokawa, Hirokazu
    読解スキルを高めるための話し合いと絵描写タスクの効果－状況モデルに焦点を当てて－, Aug. 2010, Japanese, 関西大, Domestic conference
    Poster presentation

  • 特定の統語構造への接触が日本人英語学習者の文理解に与える影響－心理言語学的学習実験による検討－
    Yokokawa, Hirokazu
    第36回全国英語教育学会大阪研究大会, Aug. 2010, Japanese, 関西大, Domestic conference
    Oral presentation

  • Gains in speaking skills after three weeks abroad.
    Yokokawa, Hirokazu
    American Association of Applied Linguistics (AAAL2010), Mar. 2010, English, 米国・アトランタ, International conference
    Oral presentation

  • Effects of group discussion and drawing pictures to enhance EFL learners' reading skills: Focusing on a situational model
    Yokokawa, Hirokazu
    merican Association of Applied Linguistics (AAAL2010), Mar. 2010, English, 米国・アトランタ, International conference
    Poster presentation

  • 小学校外国語活動におけるICT教材の意義と効果的な活用法
    YOKOKAWA HIROKAZU
    2010年度外国語教育メディア学会50周年記念全国研究大会, 2010, Japanese, Domestic conference
    Public symposium

  • 日本人英語学習者の文理解プロセスにおける動詞の下位範疇化情報の利用―反応時間を指標とした心理言語学実験による検討―
    Yokokawa, Hirokazu
    第35回全国英語教育学会鳥取研究大会, Aug. 2009, Japanese, 鳥取大, Domestic conference
    Oral presentation

  • 日本人英語学習者の動詞の語彙表象と言語産出に関する一考察―統語的プライミング実験による検討―
    Yokokawa, Hirokazu
    第35回全国英語教育学会鳥取研究大会, Mar. 2009, Japanese, 鳥取大, Domestic conference
    Oral presentation

  • 英文読解指導における状況モデルを活かしたタスク活動の効果
    Yokokawa, Hirokazu
    第35回全国英語教育学会鳥取研究大会, Mar. 2009, Japanese, 鳥取大, Domestic conference
    Oral presentation

  • Effects of Task Variation on L2 Learners’ Reading Behavior: A Psycholinguistic and an fMRI Study
    Yokokawa, Hirokazu
    merican Association of Applied Linguistics (AAAL2009), Mar. 2009, English, 米国・デンバー, International conference
    Oral presentation

  • タスクタイプの違いがリーディング行動に及ぼす影響：英語多読指導を成功させるために
    Yokokawa, Hirokazu
    第34回全国英語教育学会東京研究大会, Aug. 2008, Japanese, 昭和女子大, Domestic conference
    Oral presentation

  • 言語運用からさぐるメンタル・レキシコン（シンポジウム「英和辞書の新動向」）
    Yokokawa, Hirokazu
    大学英語教育学会第7回英語総合教育研究会, Jun. 2008, Japanese, 大阪大, Domestic conference
    Public symposium

  • 日本人英語学習者の動詞の下位範疇化情報に関する語彙知識：言語産出実験に基づく予備的検討
    Yokokawa, Hirokazu
    第34回全国英語教育学会東京研究大会, Mar. 2008, Japanese, 昭和女子大, Domestic conference
    Oral presentation

  • Effects of Short-Term Study Abroad Program on Development on Speaking Skills.
    Yokokawa, Hirokazu
    American Association of Applied Linguistics (AAAL2008), Mar. 2008, English, 米国・ワシントン, International conference
    Oral presentation

  • Effects of task variation on recall of the story and learners’ attitudes toward reading in EFL extensive reading class
    YOKOKAWA HIROKAZU
    ASIA TEFL 2008, 2008, English, Indonesia, International conference
    Poster presentation

  • Developing a teacher belief system in pre-service teacher training
    YOKOKAWA HIROKAZU
    ASIA TEFL 2008, 2008, English, Indonesia, International conference
    Poster presentation

  • Project Learning for Developing English Academic Skills through the Moodle
    YAMAUCHI, Mari, UCHIDA, Mitsumi, YOKOKAWA, Hirokazu
    外国語教育メディア学会関西支部2007年度秋季研究大会, Oct. 2007, Japanese, 外国語教育メディア学会関西支部, 大阪, 日本, Domestic conference
    Oral presentation

  • Desigigning and developing materials for English study skills
    MURAKAMI, Masayuki, YOKOKAWA, Hirokazu, TIMOTHY, Greer, UCHIDA, Mitsumi, YAMAUCHI, Mari
    第23回日本教育工学会全国大会, Sep. 2007, Japanese, 日本教育工学会, 埼玉, 日本, Domestic conference
    Oral presentation

  • Lexical knowledge and word familiarity ratings for Japanese EFL learners
    YOKOKAWA, Hirokazu, HIRAI, Ai, SATOI, Hisaki, TANIMURA, Midori
    第33回全国英語教育学会大分研究大会, Aug. 2007, Japanese, 全国英語教育学会, 大分, 日本, Domestic conference
    Oral presentation

  • Vocabulary and Response Latencies in the Spontaneous Speech of Japanese EFL Learners:An Analysis of Data from a Short-term Overseas Study Tour
    YOKOKAWA, Hirokazu, YABUUCHI, Satoshi, SUZUKI, Masanori, MORISHITA, Miwa
    電子通信情報学会：思考と言語研究会, Nov. 2006, Japanese, 電子通信情報学会：思考と言語研究会, 東京, 日本, Domestic conference
    Oral presentation

  • Effects and Evaluation of Oral Proficiency for Japanese University Students Particated in a Short-term Overseas Study Tour
    YOKOKAWA, Hirokazu, SUZUKI, Masanori
    日本言語テスト学会第１０回全国大会, Oct. 2006, Japanese, 日本言語テスト学会, 京都, 日本, Domestic conference
    Oral presentation

  • English Word Familiarity for Japanese EFL Learners: Auditory Presentation
    YABUUCHI, Satoshi, YOKOKAWA, Hirokazu, SATOI, Hisaki, SUGIURA, Kaori
    日本音声学会第２０回全国大会, Oct. 2006, Japanese, 日本音声学会, 東京, 日本, Domestic conference
    Oral presentation

  • English Word Familiarity for Japanese EFL Learners: Compariosn of Visual and Auditory Presentation
    YOKOKAWA, Hirokazu, SATOI, Hisaki, SHIMAMOTO, Taiko, TANIMURA, Midori, HIRAI, Ai, YABUUCHI, Satoshi
    全国英語教育学会第３２回高知研究大会, Aug. 2006, Japanese, 全国英語教育学会, 高知, 日本, Domestic conference
    Oral presentation

  • Word Frequency and Familiarity and L2 Sentence Comprehension
    KADOTA, Syuhei, SHIMAMOTO, Taiko, TANIMURA, Midori, YOKOKAWA, Hirokazu, IKEMURA, Daiichiro
    国際応用言語学会2005, Jul. 2005, English, 国際応用言語学会, ウィスコンシン, 米国, International conference
    Public symposium

  • Processing Garden-path sentences by Japanese EFL Learners: Eye Movement Study
    KADOTA, Syuhei, KURAMOTO, Atsuko, YOSHIDA, Haruyo, YOKOKAWA, Hirokazu, YOSHIDA, Shinsuke
    言語処理学会第11回年次大会, Mar. 2005, Japanese, 言語処理学会, 香川,, Domestic conference
    Oral presentation

  • 言語産出からみたメンタル・レキシコンの表象―日本人英語学習者を対象とした統語的プライミング実験による検討
    YOKOKAWA HIROKAZU
    日本言語学会第131回大会, 2005, Japanese, Domestic conference
    Oral presentation

  • 眼球運動にもとづくガーデンパス文の処理過程の検討―日本人英語学習者に対する心理言語学実験
    YOKOKAWA HIROKAZU
    言語科学会第7回年次国際大会, 2005, Japanese, International conference
    Oral presentation

  • 眼球運動データから日本人英語学習者の文理解プロセスを探る
    YOKOKAWA HIROKAZU
    大学英語教育学会第44回大会, 2005, Japanese, 玉川大学, Domestic conference
    Public symposium

  • Toward a Theory of L2 Sentence Comprehension: Processing of Garden-path Sentences by Japanese EFL Learners
    YOSHIDA, Haruyo, YOKOKAWA, Hiroakzu, YOSHIDA, Shinsuke, KURAMOTO, Atsuko
    2004年度大学英語教育学会全国大会, Sep. 2004, Japanese, 大学英語教育学会, 名古屋,, Domestic conference
    Public symposium

  • On-line Processing of Syntactic Ambiguous Sentences: Processing of Late/early Closure Sentence
    HIRAI, Ai, IKUMA, Yuko, YOKOKAWA, Hiroakzu
    全国英語教育学会第30回長野研究大会, Aug. 2004, Japanese, 全国英語教育学会, 長野,, Domestic conference
    Oral presentation

  • Effects of Word Frequency and Familiarity on Word Recognition
    YOKOAWA, Hiroakzu, YABUUCHI, Satoshi, TANIMURA, Midori
    全国英語教育学会第30回長野研究大会, Aug. 2004, Japanese, 全国英語教育学会, 長野,, Domestic conference
    Oral presentation

  • Word Familiarity by Japanese EFL Learners
    YOKOAWA, Hiroakzu, TANIMURA, Midori, YABUUCHI, Satoshi
    外国語教育メディア学会関西支部春季大会, Jun. 2004, Japanese, 外国語教育メディア学会関西支部, 大阪,, Domestic conference
    Public symposium

  • L2 Mental Lexicon: Word Familiarity
    YOKOKAWA, Hiroakzu, KADOTA, Syuhei, SHIMAMOTO, Taiko, SAKAI, Michiyo
    外国語教育メディア学会第４次基礎理論研究部会プロジェクト研究報告会, Jan. 2004, Japanese, 外国語教育メディア学会第４次基礎理論研究部会, 大阪,, Domestic conference
    Others

  • Japanese University Students' Writing Proficience and Woking Memory
    YABUUCHI, Satoshi, YOKOKAWA, Hiroakzu
    全国英語教育学会第29回南東北研究大会, Aug. 2003, Japanese, 全国英語教育学会, 宮城,, Domestic conference
    Oral presentation

  • Garden path phenomenon by Japanese EFL Learners: Off-line experiment
    YOSHIDA, Shinsuke, YOKOKAWA, Hirokazu, YOSHIDA, Haruyo, KURAMOTO, Atsuko
    全国英語教育学会第29回南東北研究大会, Aug. 2003, Japanese, 全国英語教育学会, 宮城,, Domestic conference
    Oral presentation

  • Issues for English language activities in elementary schools in Japan
    IKARI, Yukio, SHIKATA, Manji, KONISHI, Tomoko, YOKOKAWA, Hirokazu
    外国語教育メディア学会関西支部2002年度秋季研究大会, Nov. 2002, Japanese, 外国語教育メディア学会関西支部, 広島,, Domestic conference
    Public symposium

  • Processing strategies for raeding by Japanese EFL learners
    SATOI, Hisaki, YABUUTI, Satoshi, YOKOKAWA, Hirokazu
    全国英語教育学会第28回神戸研究大会, Aug. 2002, Japanese, 全国英語教育学会, 神戸,, Domestic conference
    Oral presentation

  • 語彙主義に基づく人間の文理解プロセスに関する一考察
    YOKOKAWA, Hirokazu, YABUUCHI, Satoshi, SATOI, Hisaki
    関西言語学会第26回大会, Oct. 2001, Japanese, 関西言語学会, 京都,, Domestic conference
    Oral presentation

  • 日本人英語学習者のFiller-Gap文処理に関する一考察
    YABUUCHI, Satoshi, YOKOKAWA, Hiroakzu, SATOI, Hisaki
    全国英語教育学会第27回広島研究大会, Aug. 2001, Japanese, 全国英語教育学会, 広島,, Domestic conference
    Oral presentation

  • 文理解プロセスから見たレキシコンの構造」（ワークショップ「外国語としての英語の語彙学習を考える」
    KADOTA, Syuhei, NAKANISHI, Yoshiko, YOKOKAWA, Hirokazu
    外国語教育メディア学会関西支部春季大会2001年度研究大会, Apr. 2001, Japanese, 外国語教育メディア学会関西支部, 京都,, Domestic conference
    Public symposium

  • シンポジウム：第二言語メンタルレキシコン―日本人英語学習者の語彙力および語彙アクセスをめぐって
    KADOTA, Syuhei, NAKANISHI, Yoshiko, NORO, Tadashi, YOKOKAWA, Hiroakzu
    大学英語教育学会第39回全国大会, Nov. 2000, Japanese, 大学英語教育学会, 沖縄,, Domestic conference
    Public symposium

  • 日本語および英語の語彙ネットワーク―語彙連想を手がかりとした分析
    YOKOKAWA, Hiroakzu, KADOTA, Shuhei, SUGIMORI, Naoki, NAKANISHI, Yoshiko
    全国英語教育学会第26回埼玉研究大会, Aug. 2000, Japanese, 全国英語教育学会, 埼玉,, Domestic conference
    Oral presentation

  • SYMPOSIUM: "Aspects of L1 and L2 Mental Lexicon: Cross-Linguistic Perspectives"
    KADOTA, Shuhei, ISHIKAWA, Keiichi, YOKOKAWA, Hirokazu
    国際応用言語学会1999, Aug. 1999, English, 国際応用言語学会, 東京,, International conference
    Public symposium

  • 日本人英語学習者の心的辞書における語彙情報
    YOKOKAWA, Hiroakzu, YABUUCHI, Satoshi, KANO, Takahiro, KONDO, Ayumi
    第24回全国英語教育学会松山研究大会, Aug. 1998, Japanese, 全国英語教育学会, 松山,, Domestic conference
    Oral presentation

  • 多読が読解力およびリスニング力に及ぼす影響
    ISOBE, Tatsuhiko, SAKAI, Michiyo, HASHIMOTO, Msafumi, TAKADA, Tetsuro, IKEMURA, Daiichiro, YOKOKAWA, Hirokazu
    第24回全国英語教育学会松山研究大会, Aug. 1998, Japanese, 全国英語教育学会, 松山,, Domestic conference
    Oral presentation

  • 照応関係理解における統語的制約と発見的ストラテジー
    YOKOKAWA, Hirokazu, MEGUMI, Tatsujiro
    第24回全国英語教育学会松山研究大会, Aug. 1998, Japanese, 全国英語教育学会, 松山,, Domestic conference
    Oral presentation

  • 早期英語学習経験年数がリーディング・リスニング能力に及ぼす影響
    YOKOKAWA, Hirokazu, MEGUMI, Tatsujiro
    第23回全国英語教育学会福井研究大会, Aug. 1997, Japanese, 全国英語教育学会, 福井,, Domestic conference
    Oral presentation

  • 高等学校における多読指導の効果：読破頁数上位者の分析
    ISOBE, Tatsuhiko, SAKAI, Michiyo, HASHIMOTO, Msafumi, TAKADA, Tetsuro, IKEMURA, Daiichiro, YOKOKAWA, Hirokazu
    第23回全国英語教育学会福井研究大会, Aug. 1997, Japanese, 全国英語教育学会, 福井,, Domestic conference
    Poster presentation

  • 英語学習経験年数が心的辞書の形成に及ぼす影響
    MEGUMI, Tatsujiro, YOKOKAWA, Hirokazu
    日本児童英語教育学会第18回全国大会, Jun. 1997, Japanese, 日本児童英語教育学会, 神奈川,, Domestic conference
    Oral presentation

  • 高等学校における多読指導の実践的ノウハウを探る
    ISOBE, Tatsuhiko, SAKAI, Michiyo, HASHIMOTO, Msafumi, TAKADA, Tetsuro, IKEMURA, Daiichiro, YOKOKAWA, Hirokazu
    関西英語教育学会第１回春期研究大会, May 1997, Japanese, 関西英語教育学会, 京都,, Domestic conference
    Public symposium

  • 早期英語学習経験者のメンタルレキシコン
    MEGUMI, Tatsujiro, YOKOKAWA, Hirokazu, MIURA, Ichioro
    日本児童英語教育学会関西地区研究大会, Oct. 1996, Japanese, 日本児童英語教育学会関西支部, 大阪,, Domestic conference
    Oral presentation

  • ＥＦＬ学習者の統語処理能力と一般リーディング力
    YOKOKAWA, Hirokazu
    第22回全国英語教育学会仙台研究大会, Aug. 1996, Japanese, 全国英語教育学会, 仙台,, Domestic conference
    Oral presentation

  • 日本人英語学習者のメンタルレキシコン
    MEGUMI, Tatsujiro, YOKOKAWA, Hirokazu
    第22回全国英語教育学会仙台研究大会, Aug. 1996, Japanese, 全国英語教育学会, 仙台,, Domestic conference
    Oral presentation

  • Ｌ２リーディングにおける語彙の統語的・意味的情報
    YOKOKAWA, Hirokazu
    第21回全国英語教育学会浦安研究大会, Aug. 1995, Japanese, 全国英語教育学会, 浦安,, Domestic conference
    Oral presentation

  • 早期英語学習経験者の中・高での成績
    MEGUMI, Tatsujiro, YOKOKAWA, Hirokazu, MIURA, Ichioro
    第21回全国英語教育学会浦安研究大会, Aug. 1995, Japanese, 全国英語教育学会, 浦安,, Domestic conference
    Oral presentation

  • ＥＦＬ学習者の統語処理における語彙情報利用に関する一考察
    YOKOKAWA, Hirokazu
    第20回全国英語教育学会山口研究大会, Aug. 1994, Japanese, 全国英語教育学会, 山口,, Domestic conference
    Oral presentation

  • 日本人英語学習者の前置詞句の統語処理に関する一考察
    YOKOKAWA, Hirokazu
    第19回全国英語教育学会長野研究大会, Aug. 1993, Japanese, 全国英語教育学会, 長野,, Domestic conference
    Oral presentation

■ Affiliated Academic Society
  • American Association for Applied Linguistics

  • ことばの科学会

  • 小学校英語教育学会

  • コンピュータ利用教育学会(CIEC)

  • 大学英語教育学会 (JACET)

  • 外国語教育メディア学会 (LET)

  • 関西英語教育学会 (KELES)

  • 全国英語教育学会 (JASELE)

■ Research Themes
  • Longitudinal and Cross-sectional Study towards the Construction of an Eye Movement Database for Japanese Learners of English in Reading Comprehension
    今村 一博, 横川 博一, 佐々木 顕彦, 濱田 彰, 高越 義一, 藤永 史尚, 吉田 真美
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Mukogawa Women's University, 01 Apr. 2023 - 31 Mar. 2028

  • 中学英語はいかに定着するか：言語処理技術を援用した学習システム開発と脳科学的検証
    横川 博一, 中村 哲, 田中 宏季, 鳴海 智之, 濱田 真由, 島田 浩二
    日本学術振興会, 科学研究費助成事業, 基盤研究(B), 神戸大学, 01 Apr. 2021 - 31 Mar. 2026

  • 日本人英語学習者の日本語・英語パラレル大規模語彙ネットワークデータベースの構築
    横川 博一
    日本学術振興会, 科学研究費助成事業 挑戦的研究(萌芽), 挑戦的研究(萌芽), 神戸大学, 30 Jun. 2022 - 31 Mar. 2025

  • 日本人英語学習者の文産出時の統語処理：累積的な統語的プライミング効果の観点から
    濱田 真由, 横川 博一
    日本学術振興会, 科学研究費助成事業, 基盤研究(C), 神戸大学, 01 Apr. 2020 - 31 Mar. 2023
    円滑で効果的なコミュニケーション力の育成には、語彙および統語処理の自動化が不可欠であり、言語使用者の統語処理プロセスがどのように自動化していくのかを解明することは重要である。しかし、日本人英語学習者を含む外国語学習者の言語産出時の統語情報の処理および学習のプロセスについてはあまり明らかでない。本研究では、日本人英語学習者を対象に、文完成課題および絵描写課題を用いて、統語的プライミング効果の(1)累積性、(2)累積的効果の持続性、(3)産出課題間での転移の観点から検証する。この実験は、日本人英語学習者をはじめとする外国語学習者は、英語母語話者と同様の学習プロセスを経て統語知識の学習を行っているのかについて、明らかにするものである。また、第二言語・外国語の音声および文字コミュニケーションにおける話者の統語構造の検索・引き出しの自動化を目指す研究および教育の発展に寄与するものである。 令和3年度は、研究課題1：文完成課題を用いて文字インプットの各構造の出現頻度（半数ずつ・どちらかの統語構造のみ）が統語的プライミング効果に及ぼす影響について検証するため、実験刺激文の作成、心理学実験ソフトを用いて心理言語学的実験で使用する実験ファイルの作成、および予備実験を行った。実験実施の準備は整ったため、令和4年度中にデータ収集・分析、および、これらの結果について学会・研究会で発表を行い、学術論文としても公刊する予定である。

  • 日本人英語学習者の音声文理解における言語情報処理：聴解時のタスクに焦点を当てて
    鳴海 智之, 横川 博一
    日本学術振興会, 科学研究費助成事業, 基盤研究(C), 兵庫教育大学, 01 Apr. 2018 - 31 Mar. 2023
    令和3年度は、前年度に引き続き新型コロナウイルス感染症の影響により、対面での実験が困難な状況となったため、研究代表者は再度、遠隔でも実験やデータ収集を行うことが可能となるように、研究計画の大幅な見直しを行った。具体的には、インターネット上で行う大規模アンケートの手法や、学術調査サービス（実験参加者の収集やアンケート調査などを行うサービス）の活用の可能性について調査・検討を行った。また、前年度に調査を行った、Cedrus社の刺激提示ソフトウェアSuperlab Remoteの使用や、音声文の作成における音声合成ソフトウェアの使用についても、継続して検討を行った。 また、大修館書店『外国語学習での暗示的・明示的知識の役割とは何か』などの図書を購入したり、関西英語教育学会 第52回KELESセミナー「外国語学習における暗示的・明示的知識の役割」（オンライン開催）や、関西英語教育学会 第25回卒論・修論研究発表セミナー（オンライン開催）に参加したりするなどして、第二言語習得・外国語学習における最新の研究成果や、教育ビッグデータを活用した研究手法などについて調査を行った。加えて、東京大学出版会『脳波解析入門 Windows10対応版：EEGLABとSPMを使いこなす』などの事象関連電位解析に関する最新の図書を購入したり、サポート終了に伴ってデスクトップパソコンを更新したりするなどして、研究環境を整えた。

  • 外国語(英語)リスニングの自動化プロセス：音声の知覚単位と母語干渉の観点から
    菅井 康祐, 横川 博一
    日本学術振興会, 科学研究費助成事業, 基盤研究(C), 近畿大学, 01 Apr. 2016 - 31 Mar. 2023
    2020年度のに行った調査結果をパイロットスタディーとし，さらに変数を加えた実験調査の準備を進めた。まだデータ収集までは実施できてはいないが，以下のように枠組みでの実験準備まで完了した。 依然対面での個室でも実験の実施が難しいため，オンラインでの実施予定。2020年度の以下調査の枠組み（日本語母語話者の音韻性STMにおいて，RQ1: 刺激音（1モーラ）の持続時間長は短期記憶容量に影響を及ぼす，RQ2: 刺激音（1モーラ）の持続時間長が短いと連続する2モーラが知覚単位（unit）になる）に加え，RQ3として，「unitが提示されるISIが長くなると，記憶容量は低下する」というものを加え，発話速度が知覚単位に与える影響を調査する準備を行った。

  • Development program of critical reading ability focusing on LTD and flipped classroom
    Uemura Kazumi
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Kansai University of International Studies, 01 Apr. 2015 - 31 Mar. 2022
    The purpose of this study is to improve the reading comprehension of students. Specifically, digital natives who do not read books will be able to read through one a paperback pocket edition. For that purpose, it is first necessary to know the initial value of one's reading comprehension, and a "reading comprehension diagnostic test" was also created so that it could be implemented on an LMS. Furthermore, we created teaching materials such as textbooks and worksheets on the assumption that we would use 2-3 times during the seminar class, and tried them in the actual class.

  • 横川 博一
    科学研究費補助金／基盤研究(A), Apr. 2014 - Mar. 2019, Principal investigator
    Competitive research funding

  • 横川 博一
    学術研究助成基金助成金／挑戦的萌芽研究, Apr. 2015 - Mar. 2018, Principal investigator
    Competitive research funding

  • The study of critical leading literacy for development to curriculum and teaching materials in a university first year experience
    UEMURA Kazumi, NISHIKAWA Mariko, HORII Yusuke, NARITA Nobuko, YONEDA Kaoru, YOKOKAWA Hirokazu, FUJIKI Kiyoshi, INOUE Kazuko
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Kansai University of International Studies, 01 Apr. 2010 - 31 Mar. 2015
    In this study, We aimed attention critical leading (analyzing reading) in the reading comprehension in particular,of the university first year experience.Element of the reading comprehension are ①Linguistic knowledge,②Partial understanding,③Overall understanding,④ability to express. And, it was tested to inspect that.

  • 横川 博一
    科学研究費補助金／基盤研究(A), 2009, Principal investigator
    Competitive research funding

  • Eye-Movement Study on Processing Garden Path Sentences by Japanese EFL Learners
    KADOTA Shuhei, HASE Naoya, YOKOKAWA Hirokazu, YOSHIDA Haruyo
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Kwansei Gakuin University, 2004 - 2006
    The study is an attempt to explore the cognitive process in L2 written sentence processing, focusing on the eye-movement data gathered using the EMR-8 (Eye-Mark Recorder). The graduate and undergraduate university students learning English as FL were required to visually process a variety of garden path (GP) and control sentences, while their eye movements were recorded. The major conclusions are as follows: (1) Japanese EFL learners experience a significant increase of processing difficulty when they are visually given GP-sentences than non-GP control and filler sentences. (2) The type of GP-sentences affects the relative processing difficulty in terms of the number of fixations and regressions for Japanese EFL learners. (3) The average duration data per a single fixation in general, do not provide a sensitive measure to differentiate the GP-and the non-GP sentences as well as the types of four different GP sentences. (4) The syntactic factors such as using an unreduced relative clause or an unambiguous past participle form reduce the processing difficulty of GP-sentences, and thus are important clues to process printed sentences. (5) Both the semantic variable (i.e.the animacy of the subject NP) and the pragmatic variable (i.e.background knowledge bias on the subject NP) reduce the processing difficulty of GP-sentences, and thus are crucial clues to process printed sentences. (6) The more detailed, phrase-based eye-movement data on fixations, regressions and total fixation durations also support and confirm the above conclusions. The fact that both the semantic and pragmatic variables affect sentence processing basically in an incremental fashion seems to support the notion of constraint-based processing model, which assumes the interaction of various linguistic information (e.g.syntactic, lexical, semantic, pragmatic) and is essentially associated with the connectionist architecture of human cognition.

  • 横川 博一
    科学研究費補助金／基盤研究(C), 2005, Principal investigator
    Competitive research funding

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