Perceptual load and visuocortical processing: Event-Related Potentials Reveal Sensory-Level Selection

Todd C. Handy, Maryam Soltani, George R Mangun

Research output: Contribution to journalArticle

107 Scopus citations

Abstract

Behavioral evidence suggests that the processing of parafoveal stimuli decreases as the perceptual demands of a task at fixation increase. However, it remains unclear whether or not this effect of perceptual load occurs during initial sensory-level processing at early stages of visitocortical analysis, Using event-related potential measures, we found that increasing the perceptual load of foveal targets led to a significant decrease in the sensory-evoked response to parafovea: stimuli, Moreover, these effects were observed using two different operational definitions of perceptual load. This result indicates that perceptual load affects the flow of information during the initial stages of visuocortical processing.

Original languageEnglish (US)
Pages (from-to)213-218
Number of pages6
JournalPsychological Science
Volume12
Issue number3
StatePublished - May 2001
Externally publishedYes

ASJC Scopus subject areas

  • Psychology(all)

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