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Sensorimotor Foundations of Higher
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Patrick Haggard

Print publication date: 1993

Print ISBN-13: 9780199231447

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780199231447.001.0001

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Perceptual deficits in optic ataxia?

Perceptual deficits in optic ataxia?

(p.47) 3 Perceptual deficits in optic ataxia?
Sensorimotor Foundations of Higher Cognition

Laure Pisella

Christopher Striemer

Annabelle Blangero

Valerie Gaveau

Patrice Revol

Roméo Salemme

James Danckert

Yves Rossetti

Oxford University Press

This chapter reviews recent accounts on the nature of the well-established visuo-motor deficits in optic ataxia (OA) and presents original data revealing visuo-perceptual deficits in patients with OA. The research reviewed in this chapter challenges the long-held assumption that OA occurs independently from other perceptual or attentional deficits. The findings also demonstrate that research on OA requires a fundamental reappraisal both regarding the specificity of visuo-motor deficits and regarding the careful analysis of underlying lesions and disruptions to normal connectivity caused by those lesions, which would benefit from diffusion tensor imaging techniques.

Keywords:   optic ataxia, visuo-motor deficits, attentional deficits, perceptual deficits, diffusion

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