The minimal time required to process visual information in visual search tasks measured by using gaze-contingent visual masking

Yasuhiro Seya, Katsumi Watanabe

研究成果: Article査読

1 被引用数 (Scopus)

抄録

To estimate the minimal time required to process visual information (ie "effective acquisition time") during a visual search task, we used a gaze-contingent visual masking method. In the experiment, an opaque mask that restricted the central vision was presented at a current gaze position. We manipulated a temporal delay from a gaze shift to mask movement. Participants were asked to search for a target letter (T) among distractor letters (L)s as quickly as possible under various delays. The results showed that the reaction times and search rate decreased when the delay was increased. When the delay was longer than 50 ms, the reaction times and search rate reached a plateau. These results indicate that the effective acquisition time during the visual search task used in the study is equal to or less than 50 ms. The present study indicates that the gaze-contingent visual masking method used is useful for revealing the effective acquisition time.

本文言語English
ページ(範囲)819-830
ページ数12
ジャーナルPerception
41
7
DOI
出版ステータスPublished - 2012
外部発表はい

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Ophthalmology
  • Sensory Systems
  • Artificial Intelligence

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