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ApraxiaThe Cognitive side of motor control$
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Georg Goldenberg

Print publication date: 2013

Print ISBN-13: 9780199591510

Published to Oxford Scholarship Online: September 2013

DOI: 10.1093/acprof:oso/9780199591510.001.0001

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Return of the ostracized

Return of the ostracized

Chapter:
(p.71) Chapter 4 Return of the ostracized
Source:
Apraxia
Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199591510.003.0004

In the last third of the twentieth century there was a renaissance of the localizing approach to brain function in general and of Liepmann’s ideas in particular. Norman Geschwind resuscitated Liepmann’s model of apraxia but replaced the multimodal mental images of intended actions by a storehouse of learned motor actions and thus degraded the posterior to anterior stream from a mechanism for the government of the limbs by the mind to a path for the transport of motor skills from their storehouse to the place of execution. In a seminal group study, Goodglass and Kaplan replicated Liepmann’s finding that apraxia is bound to left-hemisphere lesion but can vary independently from aphasia. They agreed with Liepmann that apraxia is a defect of motor execution but their discussion of body part as object errors led them back to a holistic distinction between abstract attitude and concrete interaction with the environment.

Keywords:   apraxia, axial movements, disconnection syndrome, body part as object, cerebral localization

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