Health ProfessionsNeurologyNeuroscienceAphasiaMotor ControlNeuropsychologyAphasia AssessmentAphasia DiagnosisAphasia NeuropathologyAphasia SyndromesApraxia Of SpeechRight Hemisphere SyndromesApraxia Of MovementCutoff Score Setting
A 24‑item imitation test was used to assess movement execution in unilaterally hemisphere‑damaged patients, and a cutoff derived from 100 controls classified 20% of right‑brain‑damaged patients as apraxic. Right‑brain‑damaged patients were mostly mildly defective, with a few strikingly impaired, whereas left‑brain‑damaged patients exhibited more frequent and severe apraxia often accompanied by aphasia, though the motor‑language correlation was weak and likely depends on contiguous nervous structures.
The ability to carry out movements on imitation was assessed with a 24-item test in uniterally hemisphere-damaged patients. On the basis of a cutoff score derived from the performances of 100 control patients, 20% of the right brain-damaged patients were calssified as apraxic. Most right brain-damaged patients were only mildly defective, but a few showed a striking impairment. In left brain-damaged patients apraxia was not only more frequent, but also much more severe and was nearly always associated with aphasia. However, the correlation between the motor and the language disorder was not particularly high, and the link between the two symptoms was thought to be dependent on the contiguity of the underlying nervous structures.
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MOTOR FUNCTIONS OF THE LEFT HEMISPHERE
Doreen Kimura, Yvonne M. Archibald · Brain · 1974 · 588 citations
The apraxias: neural mechanisms of disorders of learned movement.
Norman Geschwind · PubMed · 1975 · 514 citations
Medicine, Neurology, Neuroscience +11
DISTURBANCE OF GESTURE AND PANTOMIME IN APHASIA
Harold Goodglass, Emily R Kaplan · Brain · 1963 · 300 citations