PMID: 6539447Jun 1, 1984Paper

The effect of corpus callosum lesions on unilateral neglect in monkeys

Neurology
R T WatsonK M Heilman

Abstract

The cerebral hemispheres may be mutually inhibitory. An injured hemisphere may continue to be inhibited while the uninjured hemisphere is released from inhibition, inducing attentional bias. Patients with neglect might therefore benefit from transection of the corpus callosum. To test this hypothesis, we ablated the frontal arcuate gyrus alone or several months after corpus callosum transection in monkeys. Neglect was significantly worse in animals with a corpus callosum transection. Therefore, the hemispheres may be mutually excitatory or compensatory, and a callosal transection would not be therapeutic. Because the rate of recovery in the two groups was not different, recovery seemed to be an intrahemispheric phenomenon.

Citations

Nov 15, 2003·Neuropsychologia·Paolo BartolomeoPeter Halligan
Apr 1, 1997·Neuropsychologia·M Drain, P A Reuter-Lorenz
May 1, 1997·Neuropsychologia·G DemeurisseW Serniclaes
Feb 5, 2011·Neurocase·Byung Hwa LeeDuk L Na
Feb 3, 2007·Cerebral Cortex·Paolo BartolomeoFabrizio Doricchi
Nov 10, 2010·Brain Research Reviews·Anna OleksiakRichard J A van Wezel
Jun 3, 2004·Neuroscience and Biobehavioral Reviews·Laure Pisella, Jason B Mattingley
Sep 24, 2008·Behavioral and Brain Functions : BBF·Laetitia GolayRadek Ptak
Apr 1, 2016·Neurology·A M Barrett, Roy H Hamilton
Nov 1, 1992·Journal of Neurology, Neurosurgery, and Psychiatry·V Di PieroR S Frackowiak
Mar 1, 1989·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·V de la SayetteB Lechevalier

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