The relationship between buccofacial and limb apraxia.
There are at least two possible models depicting the relationship between buccofacial and limb apraxia. First, apraxia can be viewed as a unitary motor disorder which transcends the output modalities of both buccofacial and limb output. A high degree of similarity between the two types of apraxia would support this model. Alternatively, the relationship between buccofacial and limb apraxia may not include a unitary mechanism. The presence of quantitative and qualitative differences between buccofacial and limb performance would support this nonunitary model. The results of the present study support the nonunitary model.
Department of Communicative Disorders, University of Western Ontario, London, Canada.
A S
AS
Raade
L J
LJ
Rothi
K M
KM
Heilman
D000328:Adult; D000368:Aged; D001072:Apraxias / Q000175:diagnosis / Q000503:physiopathology*; D001132:Arm / Q000294:innervation; D001921:Brain / Q000503:physiopathology; D001925:Brain Damage, Chronic / Q000175:diagnosis / Q000503:physiopathology*; D001931:Brain Mapping; D005152:Facial Muscles / Q000294:innervation*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009046:Motor Neurons / Q000502:physiology*; D009048:Motor Skills / Q000502:physiology*; D009132:Muscles / Q000294:innervation*; D009483:Neuropsychological Tests; D014057:Tomography, X-Ray Computed