The pigeon's distant visual acuity as a function of viewing angle.

D J Uhlrich; P M Blough; D S Blough

doi:10.1016/0042-6989(82)90188-2

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The pigeon's distant visual acuity as a function of viewing angle.

D J Uhlrich·P M Blough·D S Blough

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Abstract

Distant visual acuity was determined for several viewing angles in two restrained White Carneaux pigeons. The behavioral technique was a classical conditioning procedure that paired presentation of sinusoidal gratings with shock. A conditioned heart rate acceleration during the grating presentation indicated resolution of the grating. The bird's acuity was fairly uniform across a large range of their lateral visual field; performance decreased slightly for posterior stimulus placement and sharply for frontal placements. The data suggest that foveal viewing is relatively less advantageous for acuity in pigeons than in humans. The data are also consistent with the current view that pigeons are myopic in frontal vision.

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Animals Columbidae Conditioning, Classical Female Fovea Centralis Male Visual Acuity Visual Fields Journal Article Research Support, U.S. Gov't, P.H.S.

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D J Uhlrich, P M Blough, D S Blough. 1982. The pigeon's distant visual acuity as a function of viewing angle.. https://doi.org/10.1016/0042-6989(82)90188-2

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