Efeito do treino de variabilidade em situações de autocontrole

• Autor(a) principal: Faggian, Lívia Farabotti
• Data de Publicação: 2011
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da PUC_SP
• Texto Completo: https://tede2.pucsp.br/handle/handle/16630
• topic: Autocontrole; Variabilidade; Atraso de reforço; Densidade de reforço; Ratos; Self-control; Variability; Delay of reinforcement; Density of reinforcement; Rats; CNPQ::CIENCIAS HUMANAS::PSICOLOGIA::PSICOLOGIA EXPERIMENTAL

Self-control, defined as the manipulation of the variables which the behavior is function, has been, in the large part of studies, investigated as the experimental model that manipulate simultaneously delays and magnitudes of reinforcements. However, few are the interfaces founded between these research areas on self-control and behavioral variability. The purpose of the present study was to investigate which are the effects of the variability training in posterior exposures to self-control situations. Rats (n=7) were distributed randomly in the groups nominated Variability (VAR) and YOKED (ACO), that differed only as schedule of reinforcement in the condition of variability training, since was required of the subjects of the VAR group the requisition of LAG 4 to have access to the reinforcements; while, for the subjects of the ACO group, no variation was required, only allowed, considering that the access to the reinforcements was set to the performance of the subjects of the VAR group. Later, all subjects were submitted to three conditions of self-control test, that differ in de values of delay before and after the reinforcement (being 3s and 5s for one condition; 5s e 3s for another and 7s and 1s to the last) and in the values of the VI (variable intervals) for the levers correspondent to self-control and impulsivity (being in on condition twice larger than the other; in the next, four times larger than the other and, in the last, eight times larger than the other). The results indicated that no significantly differences were found in the choices between the two groups, so all subjects chose self-control mostly. However, the subjects of VAR group presented a larger number of choices for impulsivity than the subjects of the ACO group. Also was observed that the subjects of ACO group emitted a more expressive number of responses in the first delays of the contingencies of test than the subjects of VAR group. Another important data is the little difference in the variability indexes founded between subjects of VAR group and your ACO, respectively. In this sense, the data suggest that the variability training exercises some kind of influence in self-control behaviors, but not directly in the choice responses. New investigations about this relation are suggested and are necessary to more expressive contributions