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“Semantic” Conduction Aphasia from a Posterior Insular Cortex Infarction
Author(s) -
Marshall Ronald M.,
Lazar Ronald M.,
Mohr J. P.,
Van Heertum Ronald L.,
Mast Henning
Publication year - 1996
Publication title -
journal of neuroimaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.822
H-Index - 64
eISSN - 1552-6569
pISSN - 1051-2284
DOI - 10.1111/jon199663189
Subject(s) - aphasia , medicine , insula , diaschisis , infarction , insular cortex , cortex (anatomy) , neuroscience , operculum (bryozoa) , temporal lobe , posterior parietal cortex , temporal cortex , audiology , cardiology , psychiatry , psychology , epilepsy , myocardial infarction , botany , cerebellum , biology , genus
A unique infarction limited to the posterior insula and intrasylvian parietal opercular cortex produced a subtype of conduction aphasia, characterized by a predominance of semantic paraphasias. Temporal lobe hypoperfusion seen on hexa methyl pro‐pyleneamineoxime single‐photon emission computed tomography in the absence of any signs of ischemia suggested that cortical diaschisis played a role in the emergence of this syndrome.