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Chapter 5 - Grasping and the Grasp Reflex

Published online by Cambridge University Press:  27 July 2023

Robert Laureno
Robert Laureno
Affiliation:
Georgetown University, Washington DC
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Summary

The grasp reflex and the instinctive grasp response differ in their necessary stimulus, level of motor integration, and clinical utility. The grasp reflex proper results from a combined cutaneous and proprioceptive stimulus. It is a stereotyped reflex due to disease of the supplementary motor area of the contralateral frontal lobe. More complex is the instinctive grasp response which involves groping. Its stimulus is purely tactile. A different phenomenon is the alien hand syndrome in which the hand has a will of its own.

Keywords

Grasp reflexInstinctive grasp responseAlien hand syndrome
Type
Chapter
Information
Insights into Clinical Neurology , pp. 33 - 40
Publisher: Cambridge University Press
Print publication year: 2023

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References

Adie, W. J., Critchley, M.. Forced grasping and groping. Brain 1927; 50: 142–170.CrossRefGoogle Scholar
Hashimoto, R., Tanaka, Y.. Contribution of the supplementary motor area and anterior cingulate gyrus to pathological grasping phenomena. Eur Neurol 1998; 40: 151–158.CrossRefGoogle ScholarPubMed
Mestre, T., Lang, A. E.. The grasp reflex: a symptom in need of treatment. Mov Disord 2010; 25: 2479–2485.CrossRefGoogle ScholarPubMed
Mori, E., Yamadori, A.. Unilateral hemispheric injury and ipsilateral instinctive grasp reaction. Arch Neurol 1985; 42: 485–488.CrossRefGoogle ScholarPubMed
Ropper, A. H.. Self-grasping: a focal neurological sign. Ann Neurol 1982; 12: 575–577.CrossRefGoogle ScholarPubMed
Denny-Brown, D.. Disintegration of motor function resulting from cerebral lesions. J Nerv Ment Dis 1950; 112: 1–45.CrossRefGoogle ScholarPubMed
Brown, D. L., Smith, T. L., Knepper, L. E.. Evaluation of five primitive reflexes in 240 young adults. Neurology 1998; 51: 322.CrossRefGoogle ScholarPubMed
Halsey, J. H., Allen, N., Chamberlin, H. R.. Chronic decerebrate state in infancy. Neurologic observations in long surviving cases of hydranencephaly. Arch Neurol 1968; 19: 339–346.Google Scholar
Rushworth, G., Denny-Brown, D.. The two components of the grasp reflex after ablation of frontal cortex in monkeys. J Neurol Neurosurg Psychiatry 1959; 22: 91–98.CrossRefGoogle ScholarPubMed
Feinberg, T. E., Schindler, R. J., Flanagan, N. G. et al. Two alien hand syndromes. Neurology 1992; 42: 19–24.CrossRefGoogle ScholarPubMed
Brion, S., Jedynak, C. P.. [Disorders of interhemispheric transfer (callosal disonnection). Three cases of tumor of the corpus callosum. The strange hand sign.] [French]. Revue Neurologique 1972; 126: 257–266.Google Scholar
Lin, J. H., Kwan, S. Y., Wu, D.. Mixed alien hand syndrome coexisting with left-sided extinction secondary to a left corpus callosal lesion: a case report. Mov Disord 2007; 22: 248–251.CrossRefGoogle ScholarPubMed

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