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Cooperative responding in rats under schedules of reinforcement

Grant number: 17/13840-8
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): April 01, 2018
Effective date (End): August 31, 2021
Field of knowledge:Humanities - Psychology - Experimental Psychology
Principal researcher:Deisy das Graças de Souza
Grantee:Lucas Couto de Carvalho
Home Institution: Centro de Educação e Ciências Humanas (CECH). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Associated scholarship(s):19/12410-5 - Investigating Interlocking Behavioral Contingencies as a Unit of Social Behavior, BE.EP.PD


The series of experiments in the present research project is designed to evaluate the effects of variables within reinforcement schedules on cooperative responding in pairs of rats. Experiment 1 is designed to verify whether cooperation is maintained by a cooperative schedule (fixed-ratio [FR]) or whether this behavior emerges merely as a byproduct of the high rate of individual responding generated by that schedule. Experiment 2 aims to replicate findings on the functional relation between ratio size (FR) and rate of cooperative responding by using a larger set of values than the one used in previous research (Carvalho et al., submitted). Experiments 3 and 4 will investigate the effects of interval schedules on cooperative responding. These experiments will employ similar designs to that of Carvalho et al. (Experiment 1), and to the one designed in Experiment 2 of the present project, respectively. In Experiment 3, a fixed-interval (FI) and a variable-interval (VI) schedule will replace the ratio schedules employed in Experiment 1 of Carvalho et al; Experiment 4 is design to evaluate the effects of parametric manipulation of FI schedules on cooperative responding in rats.

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DE CARVALHO, LUCAS COUTO; DOS SANTOS, LETICIA; REGACO, ALCEU; COUTO, KALLIU CARVALHO; DE SOUZA, DEISY DAS GRACAS; TODOROV, JOAO CLAUDIO. Cooperative responding in rats:II. Performance on fixed-ratio schedules of mutual reinforcement. JOURNAL OF THE EXPERIMENTAL ANALYSIS OF BEHAVIOR, v. 114, n. 3, p. 291-307, NOV 2020. Web of Science Citations: 0.
SANDAKER, INGUNN; COUTO, KALLIU CARVALHO; DE CARVALHO, LUCAS COUTO. Selection at Three Levels of Organization: Does Structure Matter?. BEHAVIOR AND SOCIAL ISSUES, OCT 2019. Web of Science Citations: 0.

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