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Neocortex and feeding behavior in the rat.

J J Braun
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Abstract

Consummatory behavior and weight-regulation capacity were measured in 12 normal rats and in 43 rats that survived complete (C), sequential unilateral (U), anterolateral (A), or posterior (P) neocortical ablations. Groups C and A displayed aphagia and adipsia followed by a sequence of recovery stages gualitatively identical to, but shorter than, recovery typically seen following lateral hypothalamic lesions. After recovery, Group C displayed long-term effects of finickiness and pradial drinking. These effects as well as a measure of recovery of body-weight-regulation capacity were significantly intercorrelated with lesion size, and body-weight set point remained significantly lower than normal. Group U was relatively unaffected by the first unilateral ablation and showed, relative the second ablation but displayed the long-term effects. Group P, though significantly affected by the lesion, did not display the pattern or intensity of effects described for the other bilaterally ablated groups.

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AnimalsBody WeightCerebral CortexCerebral DecorticationDrinking BehaviorFeeding BehaviorMaleRatsComparative StudyJournal ArticleResearch Support, U.S. Gov't, P.H.S.

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J J Braun. 1975. Neocortex and feeding behavior in the rat.. https://doi.org/10.1037/h0077441

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