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  The role of the corpus callosum in visual orienting: importance of interhemispheric visual transfer

Pollmann, S., & Zaidel, E. (1998). The role of the corpus callosum in visual orienting: importance of interhemispheric visual transfer. Neuropsychologia, 36(8), 763-774. doi:10.1016/S0028-3932(97)00172-3.

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 Creators:
Pollmann, Stefan1, Author              
Zaidel, E., Author
Affiliations:
1MPI of Cognitive Neuroscience (Leipzig, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634574              

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Free keywords: In a tachistoscopic visual search task, the effects of ipsi- and contralateral distractors on target search were investigated in two complete commissurotomy patients. Pop-out distractors slowed the search for contralateral targets in both patients, i.e. search was not independent in both hemifields. In normals, we previously observed an extinction-like asymmetry in that distractors in the right visual hemifield interfered with target search in the left visual hemifield, but not vice versa [15]. This pattern was also found in one of our patients, N.G., whereas the other, L.B., showed a reversed laterality effect. While N.G. is able to transfer visual shape information between hemispheres, L.B. is not. The data suggest that the reversal of the contralateral distractor asymmetry in L.B. is due to the disruption of ipsilateral visual input to the right hemisphere.
 Abstract: laterality; extinction; neglect; visuospatial; attention

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Language(s): eng - English
 Dates: 1998
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 239458
ISI: 000075500900005
Other: P6910
DOI: 10.1016/S0028-3932(97)00172-3
 Degree: -

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Title: Neuropsychologia
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Oxford : Pergamon
Pages: - Volume / Issue: 36 (8) Sequence Number: - Start / End Page: 763 - 774 Identifier: ISSN: 0028-3932
CoNE: https://pure.mpg.de/cone/journals/resource/954925428258