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. Copyright (C) 2000 Elsevier Science Ltd.

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

Keywords

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

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems

Cite this

Center-surround interactions in foveal and peripheral vision. / Xing, Jing; Heeger, David J.

In: Vision Research, Vol. 40, No. 22, 10.2000, p. 3065-3072.

Research output: Contribution to journalArticle

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