Journal article

The effect of aging on the eccentricity dependency of orientation anisotropy of perceptual surround suppression

Menaka S Malavita, Trichur R Vidyasagar, Allison M McKendrick

JOURNAL OF VISION | ASSOC RESEARCH VISION OPHTHALMOLOGY INC | Published : 2021

Abstract

The features of perceptual surround suppression vary with eccentricity, such that the suppression strength is increased for horizontally oriented stimuli relative to other orientations near the fovea, but is strongest for radially oriented stimuli more peripherally. Perceptual suppression also varies with age, which has been well-studied for central fixation. However, only limited data are available regarding perceptual suppression in older adults for nonfoveal vision, and none of those studies have taken orientation biases of contrast sensitivity into account. Here, we explored the effects of older age on the eccentricity dependency of orientation biases of perceptual suppression. We found ..

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