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Amnesia in monkeys after lesions of the mediodorsal nucleus of the thalamus

Amnesia in monkeys after lesions of the mediodorsal nucleus of the thalamus Recent successes in developing an animal model of human amnesia in the monkey have made it feasible to try to identify with certainty the specific structures in the diencephalon and medial temporal region that cause amnesia when damaged. Monkeys with small lesion restricted largely to the posterior portion of the mediodorsal nucleus of the thalamus were given a test of memory sensitive to human amnesia and a second test that is analogous to the skill‐based tasks performed normally by manesic patients. The monkeys exhibited a marked impairment on the first test and performed normally on the second. The results show that circumscribed lesions of the mediodorsal nucleus can cause substantial amnesia. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annals of Neurology Wiley

Amnesia in monkeys after lesions of the mediodorsal nucleus of the thalamus

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References (60)

Publisher
Wiley
Copyright
Copyright © 1985 the American Neurological Association
ISSN
0364-5134
eISSN
1531-8249
DOI
10.1002/ana.410170605
pmid
4040731
Publisher site
See Article on Publisher Site

Abstract

Recent successes in developing an animal model of human amnesia in the monkey have made it feasible to try to identify with certainty the specific structures in the diencephalon and medial temporal region that cause amnesia when damaged. Monkeys with small lesion restricted largely to the posterior portion of the mediodorsal nucleus of the thalamus were given a test of memory sensitive to human amnesia and a second test that is analogous to the skill‐based tasks performed normally by manesic patients. The monkeys exhibited a marked impairment on the first test and performed normally on the second. The results show that circumscribed lesions of the mediodorsal nucleus can cause substantial amnesia.

Journal

Annals of NeurologyWiley

Published: Jun 1, 1985

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