Electrical stimulation of the insular cortex induces flavor-preferences in rats

被引：18

作者：

Cubero, I ^{[1
]}

Puerto, A

机构：

[1] Univ Almeria, Dept Psicol Expt & Psicobiol, Almeria 04120, Spain

[2] Univ Granada, Dept Psicol Expt & Fisiol Comportamiento, Granada, Spain

来源：

BRAIN RESEARCH | 2000年 / 872卷 / 1-2期

关键词：

insular cortex; electrical stimulation; taste-guided behavior; incentive salience attribution; hedonic processing;

D O I：

10.1016/S0006-8993(00)02516-6

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The present study examined the role of the Insular cortex (IC) iu flavor-guided behavior. For that purpose, a flavored stimulus was paired with delayed electrical stimulation of this region. In addition, a standard operant task explored the involvement of the IC in a prefrontal self-stimulation reward-circuit. The results showed strong preferences for the flavored stimulus previously paired to the Insular stimulation. in a discriminative free choice test. However, the operant task revealed a failure to induce IC self-stimulation, suggesting that flavor preferences elicited by electrical stimulation of the IC are not due to activation of the prefrontal-stimulation reward circuit. These results are discussed in terms of the Insular Cortex as critical in processing visceral stimulus, hedonic valence and/or food-reward incentive learning. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：134 / 140

页数：7

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