Open AccessDissociation of action and object naming: Evidence from cortical stimulation mapping
Author(s) -
Corina David P.,
Gibson Erin K.,
Martin Richard,
Poliakov Andrew,
Brinkley James,
Ojemann George A.
Publication year - 2005
Publication title -
human brain mapping
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.005
H-Index - 191
eISSN - 1097-0193
pISSN - 1065-9471
DOI - 10.1002/hbm.20063
Subject(s) - supramarginal gyrus , verb , psychology , noun , neuroscience , dissociation (chemistry) , brain mapping , cognitive psychology , functional magnetic resonance imaging , artificial intelligence , computer science , chemistry
This cortical stimulation mapping study investigates the neural representation of action and object naming. Data from 13 neurosurgical subjects undergoing awake cortical mapping is presented. Our findings indicate clear evidence of differential disruption of noun and verb naming in the context of this naming task. At the individual level, evidence was found for punctuate regions of perisylvian cortex subserving noun and verb function. Across subjects, however, the location of these sites varied. This finding may help explain discrepancies between lesion and functional imaging studies of noun and verb naming. In addition, an alternative coding of these data served to highlight the grammatical class vulnerability of the target response. The use of this coding scheme implicates a role for the supramarginal gyrus in verb‐naming behavior. These data are discussed with respect to a functional–anatomical pathway underlying verb naming. Hum. Brain Mapping 24:1–10, 2005. © 2004 Wiley‐Liss, Inc.