HIRAYAMA, Kento

写真a

Affiliation

Faculty of Human Sciences, School of Human Sciences

Job title

Research Associate
To the head of this page.▲

Education 【 display / non-display 】

  • 2020.04
    -
    Now

    Waseda University   Graduate School of Human Sciences  

  • 2018.04
    -
    2020.03

    Waseda University   Graduate School of Human Sciences  

  • 2009.04
    -
    2013.03

    Showa University   School of Nursing and Rehabilitation Sciences   Division of Physical Therapy  

To the head of this page.▲

Research Experience 【 display / non-display 】

  • 2021.04
    -
    Now

    Waseda University   Faculty of Human Sciences

  • 2013.04
    -
    2020.07

    東京湾岸リハビリテーション病院   リハビリテーション   理学療法士

To the head of this page.▲
 

Research Areas 【 display / non-display 】

  • Cognitive and brain science

To the head of this page.▲

Papers 【 display / non-display 】

  • Relation between sports injuries and motor adaptation ability - preliminary study -

    Rieko Osu Rikako, Hayakawa, Takayuki Koga, Kento Hirayama, Yousuke Egawa

      33 ( 2 ) 249 - 255  2021.03  [Refereed]

  • Transcranial direct current stimulation of the posterior parietal cortex biases human hand choice

    Kento Hirayama, Takayuki Koga, Toru Takahashi, Rieko Osu

    Scientific Reports   11 ( 1 )  2021.01  [Refereed]

    Authorship：Lead author

    　View Summary

    <title>Abstract</title>Hand choices—deciding which hand to use to reach for targets—represent continuous, daily, unconscious decisions. The posterior parietal cortex (PPC) contralateral to the selected hand is activated during a hand-choice task, and disruption of left PPC activity with a single-pulse transcranial magnetic stimulation prior to the execution of the motion suppresses the choice to use the right hand but not vice versa. These findings imply the involvement of either bilateral or left PPC in hand choice. To determine whether the effects of PPC’s activity are essential and/or symmetrical in hand choice, we increased or decreased PPC excitability in 16 healthy participants using transcranial direct current stimulation (tDCS; 10 min, 2 mA, 5 × 7 cm) and examined its online and residual effects on hand-choice probability and reaction time. After the right PPC was stimulated with an anode and the left PPC with a cathode, the probability of left-hand choice significantly increased and reaction time significantly decreased. However, no significant changes were observed with the stimulation of the right PPC with a cathode and the left PPC with an anode. These findings, thus, reveal the asymmetry of PPC-mediated regulation in hand choice.

    DOI

To the head of this page.▲

Research Projects 【 display / non-display 】

  • 使用する手の選択に関する神経基盤の解明－頭頂・前頭葉ネットワークに着目して－

    Project Year :

    2021.04
    -
    2022.03
     

    Authorship： Principal investigator

  • 使う手の選択に関する神経基盤の解明ー前頭・頭頂葉ネットワークに着目してー

    Project Year :

    2021.04
    -
    2022.03
     

    Authorship： Principal investigator

  • The Effect of Risk on Hand-Choice

    Project Year :

    2021.04
    -
    2022.03
     

    Authorship： Principal investigator

  • 給付型奨学金

    Project Year :

    2018.04
    -
    2020.03
     

    平山健人

To the head of this page.▲

Presentations 【 display / non-display 】

  • Electrical stimulation of the wrist biases human hand choice

    Kento Hirayama, Takayuki Koga, Toru Takahashi, Rieko Osu

    Society for the Neural Control of Movement Annual Meeting 

    Presentation date： 2021.04

  • トレッドミル歩行により下肢の振り出 しの円滑性および歩行速度が向上した頸髄損傷不全麻痺の一症例

    鷹觜紺, 平山健人, 伊藤ゆうき, 菅澤昌史, 紙本貴之, 新藤恵一郎

    第26回千葉県理学療法士学会 

    Presentation date： 2021.03

  • Effect of Median Nerve Electrical Stimulation on Human Hand Choice ‒ Preliminary Experiment -

    平山健人, 古賀敬之, 大須理英子

    第43回日本神経科学大会 

    Presentation date： 2020.07

  • Transcranial Direct Current Stimulation on Posterior Parietal Cortex Biases Human Hand Choice

    Presentation date： 2020.03

  • 後頭頂葉への経頭蓋直流電気刺激が上肢選択意思決定に与える影響

    平山健人, 古賀敬之, 大須理英子

    第24回基礎理学療法学会学術大会 

    Presentation date： 2019.12

display all >>

To the head of this page.▲