2013 Fiscal Year Final Research Report
An objective evaluation of the influence of ``undetectable motions'' on cognitive functions by the analyses of fixation eye movements
| Project/Area Number |
22500418
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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 |
Biomedical engineering/Biological material science
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| Research Institution | Kinki University |
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Principal Investigator |
KOHAMA Takeshi 近畿大学, 生物理工学部, 准教授 (90295577)
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| Co-Investigator(Kenkyū-buntansha) |
YOSHIDA Hisashi 近畿大学, 生物理工学部, 教授 (50278735)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Keywords | 知覚閾下 / 視覚認知パフォーマンス / トップダウン注意 / ボトムアップ注意 / 固視微動 / マイクロサッカード / 定量的評価 |
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| Research Abstract |
The purpose of this study is to evaluate the influence of ``undetectable motions'', the motion information under the perception threshold, on cognitive functions by statistical analyses of the property of fixation eye movements. Subjects performed rapid serial visual presentation (RSVP) tasks with undetectable or ambiguous motions in the background while maintaining their fixation. We evaluated the influence of these motions on top-down attention mechanism by analyzing fixation eye movements. The results suggest that microsaccade rates were correlated with subliminal motion information, and fluctuations of drift eye movements were modulated by low-contrast motions in the peripheral vision.
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