Center-surround interactions in foveal and peripheral vision

Jing Xing, David J. Heeger

Research output: Contribution to journalArticle

Abstract

The perceived contrast of a central stimulus can be decreased (surround suppression) or increased (surround facilitation) by the presence of surround stimuli. In this report we examined center-surround interactions in foveal and peripheral vision using contrast-matching tasks. We found that: (1) surround suppression became markedly stronger as the center-surround stimulus was moved toward the periphery; (2) surround facilitation diminished in the periphery; and (3) the suppression in the periphery was less orientation- and frequency-specific than that in the fovea, so that significant suppression was induced even when the central and surround gratings had very different orientations and spatial frequencies. The different center-surround interactions in the fovea and periphery can not be accounted for by cortical magnification, suggesting that center-surround interactions in the fovea and periphery are incommensurable and play different functional roles in human image processing.

Original languageEnglish (US)
Pages (from-to)3065-3072
Number of pages8
JournalVision research
Volume40
Issue number22
DOIs
StatePublished - Oct 2000

Keywords

  • Facilitation
  • Lateral interactions
  • Masking
  • Peripheral vision
  • Suppression

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems

Fingerprint Dive into the research topics of 'Center-surround interactions in foveal and peripheral vision'. Together they form a unique fingerprint.

  • Cite this