Document Detail

Interhemispheric transfer of spatial and semantic information: Electrophysiological evidence.
MedLine Citation:
PMID:  23461424     Owner:  NLM     Status:  In-Data-Review    
The goal of this study was to cast light on the existence of functional callosal channels for the interhemispheric transfer (IHT) of spatial and semantic information. To do so, we recorded event-related potentials in healthy humans while performing a primed odd-even discrimination task. Targets were visually presented numbers preceded by single-letter primes signaling the probable presentation of an odd or an even number. Primes and targets could appear either in the same or in different visual fields, thus requiring an IHT in the latter case. The P1 and N2 components were influenced by IHT of spatial information only, whereas the later N400 was influenced by IHT of both spatial and semantic information. This was not the case for the P3b, which was modulated by semantic validity only. These results provide novel evidence of the existence of a temporally separated interhemispheric exchange of spatial and semantic information.
Anna Dal Molin; Carlo Alberto Marzi; Marie T Banich; Massimo Girelli
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Psychophysiology     Volume:  50     ISSN:  1540-5958     ISO Abbreviation:  Psychophysiology     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-03-06     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0142657     Medline TA:  Psychophysiology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  377-87     Citation Subset:  IM    
Copyright Information:
Copyright © 2013 Society for Psychophysiological Research.
Department of Neuroscience, University of Verona, Verona, Italy; National Institute of Neuroscience, Torino, Italy.
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