行為部位の運動を制限したときのIntentional binding

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  • Intentional binding during restricted body movements
  • コウイ ブイ ノ ウンドウ オ セイゲン シタ トキ ノ Intentional binding

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説明

Intentional binding(IB) is the phenomenon wherein the perceived time between action and the following event reduces when the event follows voluntary action. IB comprises two components: the shift of the perceived timing of the action toward the event （action binding） and that of the event toward the action （effect binding）. Previous studies have shown that older adults have specific IB. However, the underlying mechanisms are unknown. We investigated whether restricted body movements, a characteristic of older adults’ bodies, affect IB. Young participants performed a button press action with a finger to which either a straight bar (restriction condition） or movable bars (no-restriction condition） were attached and heard the sound following the action. The results showed that the restricted finger movements did not significantly change the IB but expanded the effect binding, suggesting that the body’s mobility can modulate the mechanism involved in the perceived time of the action’s consequence.

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