International Journal of Psychology and Psychological Therapy

Volume 11 Num. 3 - October 2011


Social interaction and conditional self-discrimination under effects of methylphenidate in norvegicus rats.

Volume 11 Num. 3 - October 2011 - Pages 441


Julio C. Penagos Corzo , Cristina Hermosillo , Andr?s M. P?rez Acosta


Conditional self-discrimination capability was studied in 24 four weeks old subjects Rattus norvegicus. They were assigned to three different conditions of social interaction (isolation, living in pairs, and groups of four subjects). Subjects were trained under two programs of operant conditioning, each one associated with presence or absence of methylphenidate. The dependent variable was measured during the phase of extinction. Significant differences were found for self-discrimination capacity, but not in relation to social interaction. It is possible to conclude that Rattus norvegicus are able to discriminate their internal state, and learn to use this state as a discriminative stimulus. Despite the lack of significant differences in social interaction, the trends of the observed data from a qualitative point of view, suggest the possibility of interaction between the variables studied.

Key words:

Self-discrimination, operant conditioning, social interaction, methylphenidate, Wistar rats.

Full Article

More articles in this volume

Logo AAC

Master Terapias Contextuales