Two modes of processing visual information: implications for assessing visual impairment.

R B Post; H W Leibowitz

doi:10.1097/00006324-198602000-00002

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Two modes of processing visual information: implications for assessing visual impairment.

R B Post·H W Leibowitz

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Abstract

The recognition of visual detail and the ability to orient spatially to visual stimuli are apparently subserved by distinct modes of processing, termed "focal" and "ambient," respectively. Current clinical techniques are well suited to evaluate aspects of focal vision, but do little to evaluate ambient visual functions. As a result, the impairment of ambient functions may be difficult to specify or may be overestimated. Implications for the development of assessment techniques for ambient functions are discussed.

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Humans Space Perception Vision Disorders Vision Tests Visual Perception Journal Article Research Support, U.S. Gov't, P.H.S.

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R B Post, H W Leibowitz. 1986. Two modes of processing visual information: implications for assessing visual impairment.. https://doi.org/10.1097/00006324-198602000-00002

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