Left-ear extinction in patients with MRI periventricular lesions.
A dichotic listening test was administered to 22 elderly vascular patients with periventricular white matter changes on magnetic resonance imaging. We found four patients with a moderate-to-severe extent of these changes who showed a pattern of left-ear extinction. These findings suggest that periventricular lesions in patients with vascular risk factors may be associated with a functional disconnection of the interhemispheric auditory pathways.
Pujol
J
J
Department of Neurology, Sta Creu i St. Pau Hospital, Autonomous University of Barcelona, Spain.
Junqué
C
C
Vendrell
P
P
García
P
P
Capdevila
A
A
Martí-Vilalta
J L
JL
D000368:Aged; D001306:Auditory Pathways / Q000503:physiopathology*; D002552:Cerebral Ventricles / Q000473:pathology / Q000503:physiopathology*; D002561:Cerebrovascular Disorders / Q000175:diagnosis / Q000503:physiopathology*; D004007:Dichotic Listening Tests; D004292:Dominance, Cerebral / Q000502:physiology*; D005108:Extinction, Psychological / Q000502:physiology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D013067:Speech Perception / Q000502:physiology