2015 Fiscal Year Final Research Report
Study on the mechanisms of the automatic and intentional motor rhythm control
Project/Area Number |
25330170
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Cognitive science
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Research Institution | Kyoto University |
Principal Investigator |
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Keywords | 運動リズム / 時間 / 随意運動 / 運動制御 |
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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Free Research Field |
神経生理学、神経解剖学
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