Pantomime comprehension and ideomotor apraxia.
In a prior study it was shown that apraxic patients with posterior infarctions that included the parietal lobe could not discriminate between gestures. In this study these observations were replicated using a nonverbal paradigm in which the subjects did not have to discriminate between gestures, but instead had to comprehend their meaning. Pantomimed acts on videotape were shown to six apraxic-aphasic patients, seven nonapraxic-aphasic patients, and six normal subjects. Four drawings were also shown, one of which matched the pantomime (for example, if the pantomime was of hammering, one drawing was of a nail and three were foils). Subjects responded by pushing a button corresponding to the desired picture. The apraxics made more errors than the aphasics or controls.
Rothi
L J
LJ
Heilman
K M
KM
Watson
R T
RT
D000328:Adult; D000368:Aged; D001037:Aphasia / Q000523:psychology; D001072:Apraxias / Q000503:physiopathology / Q000523:psychology*; D001925:Brain Damage, Chronic / Q000523:psychology; D004292:Dominance, Cerebral / Q000502:physiology; D005260:Female; D005625:Frontal Lobe / Q000503:physiopathology; D005868:Gestures; D006801:Humans; D008297:Male; D008875:Middle Aged; D009633:Nonverbal Communication; D010296:Parietal Lobe / Q000503:physiopathology; D010364:Pattern Recognition, Visual / Q000502:physiology; D011930:Reaction Time / Q000502:physiology; D014057:Tomography, X-Ray Computed