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.
Raade
A S
AS
Department of Communicative Disorders, University of Western Ontario, London, Canada.
Rothi
L J
LJ
Heilman
K M
KM
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