Work

O efeito da omissão de reforço no repertório de ratos com lesão no complexo basolateral e no núcleo central da amígdala

Year: 2012

Type: article

Abstract: Reinforcement omission has been used as a procedure for the evaluation of attentional and motivational processes.Studies show that the activation of some amygdala nuclei may be involved in the modulation of these processes.This study examined the reinforcement omission effects on behavioral repertoire of rats with lesions in the central nucleus and basolateral complex of the amygdala, using classical conditioning and non-contingent reinforcement schemes.Each trial constituted of a 20 second tone, always followed by the delivery of water, in the 19 th second.In the sessions involving omission, the water was delivered in half of the trials.The results showed that all groups responded to the omission and only the Basolateral group showed effect in the "Rearing" category, in the period after the omission.These results highlight the need to consider the involvement of a more complex neural network for evaluation of these effects.

Source: Revista de Etologia

DOI: 10.22491/etologia.v11n1.art3

Authors: José Lino Oliveira Bueno, Eduardo de Freitas Bernardes, Danielle Marcilio Judice-Daher

Institution: Universidade de São Paulo

Language: Portuguese

Topic: Memory and Neural Mechanisms

Subfield: Cognitive Neuroscience

Field: Neuroscience

Domain: Life Sciences

Open Access status: bronze

Funders: Fundação de Amparo à Pesquisa do Estado de São Paulo, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Conselho Nacional de Desenvolvimento Científico e Tecnológico

OpenAlex ID: W2209505049