PROJECT // 01

Self-Other Discrimination / Self-Attribution自他区別・自己帰属

自他区別・自己帰属Self-Other Discrimination / Self-Attribution

Procedure per trial (the participant's movement blended with a pre-recorded one; which of two stimuli was more controllable?) and the apparatus (display and mouse / touchpad).

Overview概要

The sense of agency is the subjective feeling that one's own movements cause and control changes in the environment. Psychology and cognitive science have studied its mechanisms and roles, and in Human-Computer Interaction (HCI) it is also used as a measure for evaluating interfaces. Yet whether the sense of agency is merely a by-product of movement, whether it serves a function essential to humans, or whether it is something else altogether is still debated.主体感(Sense of Agency)とは,自らの運動が環境に変化を引き起こし,それを制御しているという主観的な感覚である.主体感は,心理学や認知科学においてその機序や役割が検討されてきただけでなく,Human-Computer Interaction(HCI)の分野ではインタフェースの評価指標としても用いられている.一方で,主体感が運動に付随する副産物にすぎないのか,ヒトにとって不可欠な機能を担っているのか,あるいはそのいずれとも異なるものなのかについては,いまだ議論が続いている.

My research focuses on the functional side of the sense of agency, in particular on the ability to distinguish oneself from others (self-other discrimination). The experiments use a control detection task: several visual stimuli are shown on a screen, one of which moves in response to the participant's hand movements, and the participant selects the stimulus that feels closest to their own movement. By manipulating the correspondence between the participant's movements and the visual stimuli, I investigate two processes underlying the sense of agency: one based on comparing the internal model's predictions with the actual outcome, and one based on detecting regularities between one's own movements and visual changes. In my doctoral research, I examined in particular how the sense of agency arises from the regularity-detection process.私は主体感の機能的な側面,特に自己と他者を区別する能力(自他区別)に着目して研究を進めている.実験には制御検出課題(control detection task)を用いている.この課題では画面上に複数の視覚刺激が提示され,そのうち一つが参加者の手の運動に応じて動く.参加者は,自分の動きに最も近いと感じる刺激を選択する.参加者の運動と視覚刺激の対応関係を操作することで,主体感が内部モデルによる予測と実際の結果との比較に基づくプロセスと,自己運動と視覚的変化の間にある規則性の検出に基づくプロセスの機序を調査している.博士課程では,特に規則性の検出過程に基づいて主体感が生起する仕組みを検討した.

References参考文献05

Academic Journals (Peer-Reviewed)学術雑誌(査読あり)

  1. Takada, K., Wen, W., Kasahara, S., & Froese, T. (2026). Perceptual sensitivity, but not metacognitive monitoring, is shaped by increases and decreases in control. Exp. Brain Res., 244(6), 102. https://doi.org/10.1007/s00221-026-07306-w
  2. Takada, K., Wen, W., Kasahara, S., & Froese, T. (2026). The role of regularity detection and prediction in the exploration of sense of agency. Conscious. Cogn., 138, 103980. https://doi.org/10.1016/j.concog.2025.103980

Academic Journals (Non-Peer-Reviewed / Preprints)学術雑誌(査読なし・プレプリント)

  1. Takada, K., Wen, W., Kasahara, S., & Froese, T. (2026). Voluntary action facilitates self-other discrimination but leaves metacognition unchanged. Research Square. https://doi.org/10.21203/rs.3.rs-10817954/v1[Preprint, under review]
  2. Takada, K., & Watanabe, K. (2022). Exploring the mechanism of self-attribution occurrence using multiple dummy cursors. PsyArXiv. https://doi.org/10.31234/osf.io/rx94m

Domestic Conferences & Symposia国内会議・シンポジウム等

  1. 髙田一真, 温文, 笠原俊一, トム・フローズ. 内部モデルの更新が運動主体感に与える影響. 第18回Motor Control研究会, 2024年.