Exogenous attention and color perception: Performance and appearance of saturation and hue

Stuart Fuller, Marisa Carrasco

Research output: Contribution to journalArticle

Abstract

Exogenous covert attention is an automatic, transient form of attention that can be triggered by sudden changes in the periphery. Here we test for the effects of attention on color perception. We used the methodology developed by Carrasco, Ling, and Read [Carrasco, M., Ling, S., & Read, S. (2004). Attention alters appearance. Nature Neuroscience, 7 (3) 308-313] to explore the effects of exogenous attention on appearance of saturation (Experiment 1) and of hue (Experiment 2). We also tested orientation discrimination performance for single stimuli defined by saturation or hue (Experiment 3). The results indicate that attention increases apparent saturation, but does not change apparent hue, notwithstanding the fact that it improves orientation discrimination for both saturation and hue stimuli.

Original languageEnglish (US)
Pages (from-to)4032-4047
Number of pages16
JournalVision research
Volume46
Issue number23
DOIs
StatePublished - Nov 2006

Keywords

  • Appearance
  • Attention
  • Hue
  • Performance
  • Saturation

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems

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