| Project/Area Number |
12680026
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
体育学
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| Research Institution | KYOTO UNIVERSITY |
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Principal Investigator |
ODA Shingo Kyoto University, Graduate School of Human and Environmental Studies, Associate Professor, 大学院・人間・環境学研究科, 助教授 (10169310)
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| Co-Investigator(Kenkyū-buntansha) |
TOSHIO Moritani Kyoto University, Graduate School of Human and Environmental Studies, Professor, 大学院・人間・環境学研究科, 教授 (90175638)
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| Project Period (FY) |
2000 – 2002
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| Project Status |
Completed (Fiscal Year 2002)
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| Budget Amount *help |
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2002: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2001: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 2000: ¥700,000 (Direct Cost: ¥700,000)
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| Keywords | reaction time / central vision / peripheral vision / training effect / exercise / 漸増負荷運動 / AT(無酸素性作業閾値) / サッケード / トレーニング効果の転移 / premotor time |
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| Research Abstract |
Peripheral visual RT was longer than central visual RT given an increment in Reaction Time (RT). Soccer players showed shorter RTs than nonathletes, suggesting that soccer players have quicker perceptual response in peripheral and central visual fields. We examined the practice effect on RT for the peripheral visual field in order to verify the speculation that speed of response to a peripheral stimulus improves with practice, showing that the RT for the peripheral visual field decreases with practice. More interestingly, the practice effects on the RT for the peripheral visual field extended to RT for the central visual field, vice versa. The transfer effects observed in this study may suggest that the decrease in the RT with practice have resulted from a decrease in the central nervous system's processing time in common between central and peripheral RT tasks. Attention was oriented to intermediate locations when a visual stimulus was randomly presented within the large area of the visual field including central and peripheral visual fields. This finding may suggest that subjects, consciously or unconsciously, adopt the strategy to orient attention to intermediate location in order to respond as quickly as possible to all stimuli presented within the large area of the visual field. RT for the peripheral visual field increased at workload above the Ventilatory Threshold (VT), while there were practical no changes in the RT during exercise below and immediately after the VT. One possible explanation for these results may be that the transient metabolic imbalance in the brain regions during exhaustive exercise deteriorated the speed of response to a peripheral stimulus
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