Navegando por Assunto "Controle comportamental"

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Desenvolvimento comportamental manipulativo e ocorrência de olhar mútuo entre macacos-prego (Cebus cf. apella) em cativeiro
(Universidade Federal do Pará, 2011-11-07) JACOMETTO, Ingrid Schunlaus Nikolak; GALVÃO, Olavo de Faria; http://lattes.cnpq.br/7483948147827075
During the first two months of life the offspring of Cebus depend almost exclusively on their mother. Only after the third month the newborn starts to move around independently, and at that time major changes in their behaviors pattern occur, along with an increase in the manipulative repertoire. The objectives of this study are to monitor the development of manipulative behavior in three Cebus cf. apella newborns, and check the possible occurrence of mutual gaze between monkeys. In Experiment 1, using the focal animal sampling, it was observed the baseline frequency of the behavioral categories of manipulative behavior of three Cebus cf. apella newborns. Following, four types of objects were inserted in the cage, one every week. Experiment 2 was a simple discrimination test between pictures of faces with direct versus desviated gaze. Experiment 3 was a simple discrimination training, between two stimulus pairs: front faces with direct versus deviated gaze, and front face versus profile face. The results show that newborns of the same age group spent about the same time manipulating objects. It was not possible to observe a clear pattern of preference for direct or deviated gaze in Experiment 2. Subjects were able to discriminate gaze direction (Experiment 3).
Acesso aberto (Open Access)
Efeitos de histórias experimentais e de esquemas de reforço sobre o seguir regras
(2007) OLIVEIRA, Valdete Leal de; ALBUQUERQUE, Luiz Carlos de
In an investigation of variables that may interfere with rule-following, 16 college students were exposed to a matching-to-sample procedure, where they had to point, in sequence, to three comparison stimuli. Baseline was referred in Phase 1. In Phase 2, the correct sequence was established by contingencies, and in Phase 3 the discrepant rule to contingencies was presented. The reinforcement schedules in Phases 2 and 3 were manipulated as follows: For Groups 1 and 2, a CRF schedule was used in Phase 2 and also in Phase 3 of Group 1; schedule FR3 was employed in Phase 3 of Group 2. For Groups 3 and 4, the schedules were FR3 in Phase 2, FR3 in Phase 3 of Group 3, and CRF in Phase 3 of Group 4. The history constructed in Phase 2, as well as the schedule in Phase 3, interfered with rule-following.