The role of the right parietal cortex in sound localization: a chronometric single pulse transcranial magnetic stimulation study.

Details

Serval ID
serval:BIB_046F77F1E194
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
The role of the right parietal cortex in sound localization: a chronometric single pulse transcranial magnetic stimulation study.
Journal
Neuropsychologia
Author(s)
At A., Spierer L., Clarke S.
ISSN
1873-3514 (Electronic)
ISSN-L
0028-3932
Publication state
Published
Issued date
2011
Volume
49
Number
9
Pages
2794-2797
Language
english
Abstract
Auditory spatial functions, including the ability to discriminate between the positions of nearby sound sources, are subserved by a large temporo-parieto-frontal network. With the aim of determining whether and when the parietal contribution is critical for auditory spatial discrimination, we applied single pulse transcranial magnetic stimulation on the right parietal cortex 20, 80, 90 and 150 ms post-stimulus onset while participants completed a two-alternative forced choice auditory spatial discrimination task in the left or right hemispace. Our results reveal that transient TMS disruption of right parietal activity impairs spatial discrimination when applied at 20 ms post-stimulus onset for sounds presented in the left (controlateral) hemispace and at 80 ms for sounds presented in the right hemispace. We interpret our finding in terms of a critical role for controlateral temporo-parietal cortices over initial stages of the building-up of auditory spatial representation and for a right hemispheric specialization in integrating the whole auditory space over subsequent, higher-order processing stages.
Pubmed
Web of science
Create date
01/09/2011 8:17
Last modification date
20/08/2019 12:26
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