Document Detail

Investigating visual motion perception using the transcranial magnetic stimulation-adaptation paradigm.
MedLine Citation:
PMID:  18766024     Owner:  NLM     Status:  MEDLINE    
The state-dependency approach of transcranial magnetic stimulation (TMS) enables differential stimulation of functionally distinct neural populations within the affected region of cortex. Here we tested the validity of a paradigm based on state-dependency, the TMS-adaptation paradigm, in the context of visual motion perception. Visual adaptation was used to induce an activity imbalance in direction-selective neurons in the visual cortex, after which participants performed a motion direction discrimination task. When TMS was applied over the motion-selective area V5/MT before each experimental trial, the detection of the direction encoded by the adapted neurons was facilitated relative to the direction encoded by the nonadapted neurons. This finding demonstrates, in the domain of visual motion detection, the state-dependency of TMS effects and the validity of the TMS-adaptation paradigm.
Zaira Cattaneo; Juha Silvanto
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Neuroreport     Volume:  19     ISSN:  1473-558X     ISO Abbreviation:  Neuroreport     Publication Date:  2008 Sep 
Date Detail:
Created Date:  2008-09-03     Completed Date:  2008-10-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9100935     Medline TA:  Neuroreport     Country:  England    
Other Details:
Languages:  eng     Pagination:  1423-7     Citation Subset:  IM    
Department of Psychology, University of Pavia, Piazza Botta, Italy.
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MeSH Terms
Adaptation, Physiological / physiology
Cerebral Cortex / physiology
Discrimination (Psychology) / physiology
Functional Laterality / physiology
Motion Perception / physiology*
Pattern Recognition, Visual / physiology
Photic Stimulation / methods
Psychomotor Performance / physiology
Task Performance and Analysis
Transcranial Magnetic Stimulation / methods*
Visual Cortex / physiology*
Visual Perception / physiology*

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