Callosal apraxia

Neill R Graff Radford, K. Welsh, J. Godersky

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

A 39-year-old right-handed woman suffered a ruptured pericallosal aneurysm. Serial MRI studies showed damage to the genu and most of the body of the corpus callosum but not the splenium. Both supplementary motor areas (SMA) appeared intact. We studied the patient's praxis performance at intervals over a 4-month period with a standardized battery. The study suggests that apraxia seen in patients with callosal lesions is probably due to the callosal damage, not to the usually associated SMA lesion. Our findings support Liepmann's idea that the left hemisphere is dominant for praxis in both hands. We propose, however, that the dominance effect is related to the type of test given and varies among individuals. As regards the latter, in some individuals the left hemisphere is strongly dominant for motor tasks, while in others it is less so. As regards the type of test, the most enduring left-hand apraxia is seen in verbal, not visuomotor tests.

Original languageEnglish (US)
Pages (from-to)100-105
Number of pages6
JournalNeurology
Volume37
Issue number1
StatePublished - 1987
Externally publishedYes

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Apraxias
Corpus Callosum
Motor Cortex
Hand
Women's Rights
Ruptured Aneurysm

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Graff Radford, N. R., Welsh, K., & Godersky, J. (1987). Callosal apraxia. Neurology, 37(1), 100-105.

Callosal apraxia. / Graff Radford, Neill R; Welsh, K.; Godersky, J.

In: Neurology, Vol. 37, No. 1, 1987, p. 100-105.

Research output: Contribution to journalArticle

Graff Radford, NR, Welsh, K & Godersky, J 1987, 'Callosal apraxia', Neurology, vol. 37, no. 1, pp. 100-105.
Graff Radford NR, Welsh K, Godersky J. Callosal apraxia. Neurology. 1987;37(1):100-105.
Graff Radford, Neill R ; Welsh, K. ; Godersky, J. / Callosal apraxia. In: Neurology. 1987 ; Vol. 37, No. 1. pp. 100-105.
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