| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
When humans repeat simple actions, we often get to the rhythm. To better understand this phenomenon, performance of repetitive reaction time task was examined in humans and a macaque. In both species, button press was synchronized with the cue in the “rhythmic condition”, in which all the inter-onset interval (IOI) was identical. In the “random condition”, in which three IOIs were pseudorandomely mixed, the reaction time was shortened when the same IOI was repeated. If a longer IOI was preceded by repetition of a shorter IOI, the reaction was delayed in both species. However, if a shorter IOI was preceded by a rhythm of a longer IOI, the RT was not influenced by the preceding rhythm. These results suggest that 1) when a simple action such as the button press is repeated, the action was entrained to the cue rhythm in humans and also in macaques, and 2) mechanisms for the rhythmic motor control and for the control of stimulus-induced discrete action would be rather independent.
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