Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
14
pubmed:dateCreated
2005-9-8
pubmed:abstractText
The degree of involvement of the right and left hemispheres in the system matching perception and execution of actions remains unclear. Some studies have proposed that action observation involves a bilateral network of brain areas, whereas others have suggested left-hemisphere dominance. We explored hemispheric lateralization associated with action observation using transcranial magnetic stimulation over primary motor cortex devoid of callosal influences. We assessed corticospinal excitability related to observation of finger movements in one split-brain patient and six controls. Results revealed that the left hemisphere of the split-brain patient shows enhanced excitability during action observation, whereas no enhancement was found in the right hemisphere. The controls showed increased excitability in both hemispheres during action observation. Our findings suggest a left-hemisphere dominance for mirror-neuron function in the absence of a corpus callosum.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0959-4965
pubmed:author
pubmed:issnType
Print
pubmed:day
28
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1591-4
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Modulation of motor cortex excitability during action observation in disconnected hemispheres.
pubmed:affiliation
Département de Psychologie, Université de Montréal, Canada. shirley.fecteau@umontreal.ca
pubmed:publicationType
Journal Article, Clinical Trial, Comparative Study, Research Support, Non-U.S. Gov't