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Title: Suction lesions of the frontal cerebral cortex in the rat induce asymmetrical behavioral and catecholaminergic responses. Author: Pearlson GD, Robinson RG. Journal: Brain Res; 1981 Aug 10; 218(1-2):233-42. PubMed ID: 7196790. Abstract: Suction lesions of the right frontal cerebral cortex in rats induce a period of spontaneous hyperactivity. The hyperactivity, as measured by an increase in running wheel activity begins about one week post-operatively and continues throughout the remainder of a 30-day observation period. The increased activity is accompanied by a bilateral decrease in norepinephrine concentrations in both the ipsilateral and contralateral cortex and locus coeruleus. Identical lesions of the left frontal cerebral cortex produce neither the hyperactivity nor a decrease in norepinephrine concentrations. These experiments have reproduced many of the behavioral and biochemical asymmetries seen after middle cerebral artery ligation; however, suction lesions are both simpler to produce and histologically less variable in their effects.[Abstract] [Full Text] [Related] [New Search]