Voice perception deficits: neuroanatomical correlates of phonagnosia.
Voice perception (recognition of familiar voices and discrimination of unfamiliar voices) was studied in brain-damaged patients and normal controls. Left- and right-brain-damaged subjects were tested on familiar voices (25 famous males) and 26 pairs of unfamiliar voices. Deficits in recognizing familiar voices were significantly correlated with right-hemisphere damage; discrimination of unfamiliar voices was worse in both clinical groups than in normal controls. Computerized tomographic scans indicated that an intact right parietal-lobe was present in all cases of normal voice recognition, while right parietal-lobe damage was significantly correlated with a deficit in voice recognition. Temporal-lobe damage of either hemisphere was associated with a voice discrimination deficit.
Van Lancker
D R
DR
Department of Neuroscience, University of North Dakota Medical School, Fargo 58102.
Kreiman
J
J
Cummings
J
J
D000328:Adult; D000377:Agnosia / Q000473:pathology / Q000503:physiopathology*; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000473:pathology; D002544:Cerebral Infarction / Q000000981:diagnostic imaging / Q000473:pathology / Q000503:physiopathology*; D006309:Hearing; D006801:Humans; D008297:Male; D010468:Perceptual Disorders / Q000000981:diagnostic imaging / Q000473:pathology* / Q000503:physiopathology; D014057:Tomography, X-Ray Computed