O efeito da aprendizagem na mediação das respostas emocionais de ansiedade no rato wistar

Abstract

This project aims to develop an exploratory study of learning in mediating anxiety responses in the Wistar rat . A total of 96 male, albino rats , Wistar , aged 90 and 120 days , weighing roughly between 280g and 350g each, experimentally naive at the first session and deprived of water for 48 hours . The subjects were divided into 3 groups of 32 animals : Group A : control , Group B: experimental ( positive reinforcement - water ), Group C : experimental ( positive reinforcement - refuge) . For the experiment we used the open field , and each session lasted 10 minutes. 4 sessions were conducted with each group of animals , the first and the last pre-test and post-test respectively for all groups. Group A (control ) did not undergo . Group B found a trail of water in the open field , in sessions 2 and 3. The group C found a refuge in the center of the field in sessions 2 and 3. The behavioral analyzes were performed from the observed behaviors in sessions 1 and 4 , showing that learning acts as a mediator in the control and management of processes anxious rats .