Rapid and implicit effects of color category on visual search

Kenji Yokoi*, Katsumi Watanabe, Shinya Saida

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Many studies suggest that the color category influences visual perception. It is also well known that oculomotor control and visual attention are closely linked. In order to clarify temporal characteristics of color categorization, we investigated eye movements during color visual search. Eight color disks were presented briefly for 20-320 ms, and the subject was instructed to gaze at a target shown prior to the trial. We found that the color category of the target modulated eye movements significantly when the stimulus was displayed for more than 40 ms and the categorization could be completed within 80 ms. With the 20 ms presentation, the search performance was at a chance level, however, the first saccadic latency suggested that the color category had an effect on visual attention. These results suggest that color categorization affects the guidance of visual attention rapidly and implicitly.

Original languageEnglish
Pages (from-to)276-281
Number of pages6
JournalOptical Review
Issue number4
Publication statusPublished - 2012 Jul
Externally publishedYes


  • basic colors
  • color category
  • eye movements
  • visual attention
  • visual search

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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