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論文
- タイトル
- タイトル（英）
- Premovement activity in the mesocortical system links peak force but not initiation of force generation under incentive motivation
- 参照URL
- https://researchmap.jp/kore2460/published_papers/43749487
- 著者
- 著者（英）
- Sho K Sugawara,Tetsuya Yamamoto,Yoshihisa Nakayama,Yuki H Hamano,Masaki Fukunaga,Norihiro Sadato,Yukio Nishimura
- 担当区分
- 概要
- 概要（英）
- Abstract Motivation facilitates motor performance; however, the neural substrates of the psychological effects on motor performance remain unclear. We conducted a functional magnetic resonance imaging experiment while human subjects performed a ready-set-go task with monetary incentives. Although subjects were only motivated to respond quickly, increasing the incentives improved not only reaction time but also peak grip force. However, the trial-by-trial correlation between reaction time and peak grip force was weak. Extensive areas in the mesocortical system, including the ventral midbrain (VM) and cortical motor-related areas, exhibited motivation-dependent activity in the premovement “Ready” period when the anticipated monetary reward was displayed. This premovement activity in the mesocortical system correlated only with subsequent peak grip force, whereas the activity in motor-related areas alone was associated with subsequent reaction time and peak grip force. These findings suggest that the mesocortical system linking the VM and motor-related regions plays a role in controlling the peak of force generation indirectly associated with incentives but not the initiation of force generation.
- 出版者・発行元
- 出版者・発行元（英）
- Oxford University Press (OUP)
- 誌名
- 誌名（英）
- Cerebral Cortex
- 巻
- 号
- 開始ページ
- 終了ページ
- 出版年月
- 2023年10月9日
- 査読の有無
- 招待の有無
- 掲載種別
- 研究論文（学術雑誌）
- ISSN
- 1047-3211
- DOI URL
- https://doi.org/10.1093/cercor/bhad376
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