| Disruption of MT impairs motion processing. | |
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MedLine Citation:
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PMID: 21195742 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Functional magnetic resonance imaging (fMRI) studies have associated motion processing with cortical region MT+, which includes sub-region MT that preferentially processes motion in the contralateral visual field. Transcranial magnetic stimulation (TMS) has been used to temporarily disrupt MT+ which impaired motion perception, suggesting this region is necessary for motion processing. In the present study, we used fMRI guided TMS to disrupt MT and determine whether this sub-region is necessary for motion processing. On an individual participant basis, MT was localized in each hemisphere using motion related fMRI activity on the posterior bank of the ascending limb of the inferior temporal sulcus. In the first experiment, 1Hz TMS of left MT preferentially impaired motion detection in the contralateral versus ipsilateral visual field. In the second experiment, single-pulse TMS of MT impaired motion processing to a greater degree than color processing. These results provide convergent evidence that sub-region MT is necessary for motion processing. |
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Authors:
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Preston P Thakral; Scott D Slotnick |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2010-12-31 |
Journal Detail:
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Title: Neuroscience letters Volume: - ISSN: 1872-7972 ISO Abbreviation: - Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2011-1-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7600130 Medline TA: Neurosci Lett Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2010 Elsevier Ireland Ltd. All rights reserved. |
Affiliation:
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Department of Psychology, Boston College, Chestnut Hill, MA, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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