Document Detail


MedLine Citation:
PMID:  19891991     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Here we tested two working hypotheses on spatially selective cortical activation ("neural efficiency") in experts: (i) compared to non-athletes, elite karate athletes are characterized by a reduced cortical activation during the judgment of karate actions; (ii) compared to non-athletes and elite karate athletes, amateur karate athletes are characterized by an intermediate cortical activation during the judgment of karate actions. Electroencephalographic (EEG) data were recorded in 16 elite karate athletes, 15 amateur athletes and 17 non-athletes. They observed a series of 120 karate videos. At the end of each video, the subjects had to judge the technical/athletic level of the exercise by a scale from 0 to 10. The mismatch between their judgment and that of the coach indexed the degree of action judgment. The EEG cortical sources were estimated by sLORETA. With reference to a pre-stimulus period, the power decrease of alpha (8-12 Hz) rhythms during the video indexed the cortical activation (event-related desynchronization, ERD). Regarding the hypothesis of reduced activity in elite karate athletes, low- and high-frequency alpha ERD was less pronounced in dorsal and "mirror" pathways in the elite karate athletes than in the non-athletes. Regarding the hypothesis of intermediate cortical activity in amateur karate athletes, low- and high-frequency alpha ERD was less pronounced in dorsal pathways across the non-athletes, the amateur karate athletes, and the elite karate athletes. In conclusion, athletes' judgment of observed sporting actions is related to less pronounced alpha ERD, as a possible index of "neural efficiency" in experts engaged in social cognition.
Authors:
Claudio Babiloni; Nicola Marzano; Francesco Infarinato; Marco Iacoboni; Giulia Rizza; Pierluigi Aschieri; Giuseppe Cibelli; Andrea Soricelli; Fabrizio Eusebi; Claudio Del Percio
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-11-03
Journal Detail:
Title:  Behavioural brain research     Volume:  207     ISSN:  1872-7549     ISO Abbreviation:  Behav. Brain Res.     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-02-01     Completed Date:  2010-04-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8004872     Medline TA:  Behav Brain Res     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  466-75     Citation Subset:  IM    
Copyright Information:
Copyright 2009 Elsevier B.V. All rights reserved.
Affiliation:
Department of Biomedical Sciences, University of Foggia, Foggia, Italy. c.babiloni@unifg.it
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MeSH Terms
Descriptor/Qualifier:
Adult
Alpha Rhythm
Athletes*
Brain / physiology*
Cortical Synchronization
Electroencephalography
Female
Humans
Judgment / physiology*
Male
Martial Arts*
Motion Perception / physiology*
Neural Pathways / physiology
Signal Processing, Computer-Assisted
Video Recording
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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