Pure left hemianacousia: clinical and neurophysiological study.
Hemianacousia is a pure sensory deficit revealed by an abnormality of dichotic listening test associated with an asymmetry of late auditory evoked potentials. We report a case of a patient with pure left hemianacousia. LAEPs, MLAEPs and P300 were recorded. Left hemisphere N90 wave amplitude was significantly reduced over the right hemisphere. CT scan revealed a right temporal hematoma which seemed to correspond to area 41.
Service de Neurochirurgie, CHU Timone, Marseille, France.
A
A
Donnet
G
G
Farnarier
A
A
Schmitt
N
N
Graziani
F
F
Grisoli
D001921:Brain / Q000473:pathology / Q000503:physiopathology; D001931:Brain Mapping; D005072:Evoked Potentials, Auditory / Q000502:physiology; D007839:Functional Laterality; D034381:Hearing Loss / Q000503:physiopathology* / Q000523:psychology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged