Vision after early-onset lesions of the occipital cortex: I. Neuropsychological and psychophysical studies.

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Serval ID
serval:BIB_517620FF9ABD
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Vision after early-onset lesions of the occipital cortex: I. Neuropsychological and psychophysical studies.
Journal
Neural Plasticity
Author(s)
Kiper D.C., Zesiger P., Maeder P., Deonna T., Innocenti G.M.
ISSN
1687-5443
ISSN-L
2090-5904 (Print)
Publication state
Published
Issued date
2002
Volume
9
Number
1
Pages
1-25
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't Publication Status: ppublish
Abstract
We analyzed the visual functions of two patients (MS, FJ) with bilateral lesion of the primary visual cortex, which occurred at gestational age 33 wk in MS and at postnatal month 7 in FJ. In both patients basic visual functions--visual acuity, contrast sensitivity, color, form, motion perception-are similarly preserved or modestly impaired. Functions requiring higher visual processing, particularly figure-ground segregation based on textural cues, are severely impaired. In MS, studied longitudinally, the deficits attenuated between the ages of 4.5 and 8 y, suggesting that the developing visual system can display a considerable degree of adaptive plasticity several years after the occurrence of a lesion. In FJ (age 18:9 to 20:6 y), who is more impaired, the recovery, if any, was less.
Keywords
Adolescent, Age of Onset, Agnosia/pathology, Agnosia/physiopathology, Child, Female, Form Perception, Humans, Longitudinal Studies, Male, Neuronal Plasticity/physiology, Neuropsychological Tests, Psychophysics, Recovery of Function/physiology, Vision, Ocular, Visual Acuity, Visual Cortex/abnormalities, Visual Cortex/growth & development, Visual Fields
Pubmed
Open Access
Yes
Create date
11/04/2008 8:23
Last modification date
20/08/2019 14:07
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