Anisotropy in the peripheral visual field based on pupil response to the glare illusion.

ABSTRACT: Visual-field (VF) anisotropy has been investigated in terms of spatial resolution of attention, spatial frequency, and semantic processing. Brightness perception has also been reported to vary between VFs. However, the influence of VF anisotropy on brightness perception using pupillometry has not been investigated. The present study measured participants' pupil size during glare illusion, in which converging luminance gradients evoke brightness enhancement and a glowing impression on the central white area of the stimulus, and halo stimuli, in which the same physical brightness of the glare illusion is used with a diverging luminance pattern. The results revealed greater stimulus-evoked pupillary dilation and glare-related dilated pupil reduction in the upper VF (UVF) compared with other V

SUBMITTER: Istiqomah N 

PROVIDER: S-EPMC9253849 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature