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Cerebral language lateralization was investigated in 103 patients undergoing intracarotid amobarbital testing as part of their diagnostic work-up for epilepsy surgery. Inclusion criteria included adequate bilateral intracarotid amobarbital studies and no radiologic lesion in areas other than the temporal lobe. Language was evaluated with respect to strict presence or absence of language representation, in which a patient was considered to have bilateral language despite potentially having asymmetric language representation, and with respect to forced relative hemispheric dominance, in which a single side could be considered dominant despite bilateral language representation. Seventy-nine patients displayed exclusive left hemisphere language representation, two patients showed exclusive right hemisphere language representation, and 22 patients had language represented in each hemisphere. In the 22 patients with bilateral language, an asymmetry was present in 17 cases (13 L greater than R, 4 R greater than L). These data indicate that language restricted only to the right hemisphere is rare, and that in the absence of purely left hemisphere language, most patients exhibit bilateral representation. Previously reported incidence of exclusive right hemisphere language may be an artifact of dichotomizing a continuous variable.
D W Loring, and
K J Meador, and
G P Lee, and
A M Murro, and
J R Smith, and
H F Flanigin, and
B B Gallagher, and
D W King
November 2005,
Epilepsia,
D W Loring, and
K J Meador, and
G P Lee, and
A M Murro, and
J R Smith, and
H F Flanigin, and
B B Gallagher, and
D W King
April 1998,
Neurology,
D W Loring, and
K J Meador, and
G P Lee, and
A M Murro, and
J R Smith, and
H F Flanigin, and
B B Gallagher, and
D W King
October 1996,
Neuropsychologia,
D W Loring, and
K J Meador, and
G P Lee, and
A M Murro, and
J R Smith, and
H F Flanigin, and
B B Gallagher, and
D W King
July 1993,
Epilepsy research,
D W Loring, and
K J Meador, and
G P Lee, and
A M Murro, and
J R Smith, and
H F Flanigin, and
B B Gallagher, and
D W King
April 1971,
Nature,
D W Loring, and
K J Meador, and
G P Lee, and
A M Murro, and
J R Smith, and
H F Flanigin, and
B B Gallagher, and
D W King
September 2003,
Acta neurologica Scandinavica,
D W Loring, and
K J Meador, and
G P Lee, and
A M Murro, and
J R Smith, and
H F Flanigin, and
B B Gallagher, and
D W King
October 1990,
Neurology,
D W Loring, and
K J Meador, and
G P Lee, and
A M Murro, and
J R Smith, and
H F Flanigin, and
B B Gallagher, and
D W King
February 2007,
Epilepsy & behavior : E&B,
D W Loring, and
K J Meador, and
G P Lee, and
A M Murro, and
J R Smith, and
H F Flanigin, and
B B Gallagher, and
D W King
March 1997,
Brain and cognition,
D W Loring, and
K J Meador, and
G P Lee, and
A M Murro, and
J R Smith, and
H F Flanigin, and
B B Gallagher, and
D W King
March 2009,
Epilepsy & behavior : E&B,
