Apraxia Impairs Intentional Retrieval of Incidentally Acquired Motor Knowledge
نویسندگان
چکیده
منابع مشابه
Apraxia impairs intentional retrieval of incidentally acquired motor knowledge.
Apraxia caused by left hemispheric stroke typically impairs skilled sequential movements. After stroke, apraxic patients need to reacquire motor skills by motor learning. The current study assessed for the first time incidental motor sequence learning in apraxic patients. Forty-eight human subjects (henceforth called "patients") with left hemispheric stroke affecting the middle cerebral artery ...
متن کاملAcquired ocular motor apraxia after aortic surgery.
PURPOSE To describe an unusual form of acquired ocular motor apraxia. METHODS Case reports with electronic eye movement recordings. RESULTS Three patients had surgery to repair aortic root or arch dissections or aneurysms. A few days after surgery, all had ophthalmoplegia. Neuro-ophthalmic examination found complete absence of horizontal and vertical volitional and reflex saccades in 1 pati...
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Motor apraxia was assessed in 25 patients with presumed dementia of the Alzheimer type and 23 patients with presumed multi-infarct dementia. Apraxia was common in both groups and was usually only mild. It correlated most strongly with language-related impairments in the Alzheimer group, as has been found in other patient groups, whereas in the group with multi-infarct dementia the pattern of co...
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Congenital ocular motor apraxia, described in 1952 by Professor David Cogan, is characterized by defective or absent voluntary and optically induced horizontal saccades and compensatory jerky head movements or thrusts to accomplish ocular refixation (1-3). The most common initial sign is the inability to follow objects visually. The diagnosis is usually made between the fourth and eighth months...
متن کاملCongenital ocular motor apraxia.
Nine patients with congenital ocular motor apraxia (COMA) are presented and the natural history of this condition is considered. Two presented in early infancy, before the onset of the head thrust, and the means of establishing the diagnosis at this age are discussed. All exhibited motor delay in infancy which lessened, but did not completely resolve, with time. Conceptual delay, particularly w...
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ژورنال
عنوان ژورنال: Journal of Neuroscience
سال: 2011
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.6585-10.2011