HATA Masahiro



Research Centers and Institutes, Keio University Global Research Institute (Mita)


Project Assistant Professor (Non-tenured)/Project Research Associate (Non-tenured)/Project Instructor (Non-tenured)


Papers, etc., Registered in KOARA 【 Display / hide

Research Projects of Competitive Funds, etc. 【 Display / hide

  • 初期語彙発達の個人差を生み出す神経基盤の解明:意味記憶形成過程からの検討


    MEXT,JSPS, Grant-in-Aid for Scientific Research, 基盤研究(C), Principal investigator

  • 乳幼児期の語彙意味処理を可能にする神経基盤の発達研究


    MEXT,JSPS, Grant-in-Aid for Scientific Research, Grant-in-Aid for Early-Career Scientists , Principal investigator

  • Hemispheric contributions in lexical-semantic processing: an ERP study


    MEXT,JSPS, Grant-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), Principal investigator

     View Summary

    Although clinical and experimental studies have reported left-hemispheric dominance in language processing, right-hemispheric function is also suggested in language comprehension; however, its exact contribution remains unclear. This study aims to investigate the contribution of both hemispheres in processing words referring to animal and artefactual categories through electroencephalography and a visual half-field paradigm. In an early time widow, an amplitude difference between high and low similarities in semantic features was observed only in the categories with animals present in the Left Visual Field/Right Hemisphere condition. The following time windows did not have any visual filed effect. These results suggest that the right hemisphere contributes to early processing of semantic features through category-dependent processing. This finding is important for understanding the contribution of each hemisphere in semantic processing and therefore language development in children.