Through a prism darkly: re-evaluating prisms and neglect.

Abstract:

:Many studies have demonstrated that prism adaptation can reduce several symptoms of visual neglect: a disorder in which patients fail to respond to information in contralesional space. The dominant framework to explain these effects proposes that prisms influence higher order visuospatial processes by acting on brain circuits that control spatial attention and perception. However, studies that have directly examined the influence of prisms on perceptual biases inherent to neglect have revealed very few beneficial effects. We propose an alternative explanation whereby many of the beneficial effects of prisms arise via the influence of adaptation on circuits in the dorsal visual stream controlling attention and visuomotor behaviors. We further argue that prisms have little influence on the pervasive perceptual biases that characterize neglect.

journal_name

Trends Cogn Sci

authors

Striemer CL,Danckert JA

doi

10.1016/j.tics.2010.04.001

subject

Has Abstract

pub_date

2010-07-01 00:00:00

pages

308-16

issue

7

eissn

1364-6613

issn

1879-307X

pii

S1364-6613(10)00073-2

journal_volume

14

pub_type

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