| Priming of motion direction and area V5/MT: a test of perceptual memory. | |
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MedLine Citation:
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PMID: 12003865 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Presentation of supraliminal or subliminal visual stimuli that can (or cannot) be detected or identified can improve the probability of the same stimulus being detected over a subsequent period of seconds, hours or longer. The locus and nature of this perceptual priming effect was examined, using suprathreshold stimuli, in subjects who received repetitive pulse transcranial magnetic stimulation over the posterior occipital cortex, the extrastriate motion area V5/MT or the right posterior parietal cortex during the intertrial interval of a visual motion direction discrimination task. Perceptual priming observed in a control condition was abolished when area V5/MT was stimulated but was not affected by magnetic stimulation over striate or parietal sites. The effect of transcranial magnetic stimulation (TMS) on priming was specific to site (V5/MT) and to task - colour priming was unaffected by TMS over V5/MT. The results parallel, in the motion domain, recent demonstrations of the importance of macaque areas V4 and TEO for priming in the colour and form domains. |
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Authors:
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Gianluca Campana; Alan Cowey; Vincent Walsh |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Cerebral cortex (New York, N.Y. : 1991) Volume: 12 ISSN: 1047-3211 ISO Abbreviation: Cereb. Cortex Publication Date: 2002 Jun |
Date Detail:
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Created Date: 2002-05-10 Completed Date: 2002-07-03 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9110718 Medline TA: Cereb Cortex Country: United States |
Other Details:
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Languages: eng Pagination: 663-9 Citation Subset: IM |
Affiliation:
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Dipartimento di Psicologia dello Svilluppo e della Socializzazione, Università degli Studi di Padova,Via Venezia 8, Padova, Italy. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Color Perception / physiology Discrimination (Psychology) / physiology Electric Stimulation Female Humans Magnetics* Male Memory / physiology* Motion Perception / physiology* Parietal Lobe / physiology Visual Cortex / physiology |
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