Successive negative contrast after partial reinforcement in the consummatory behavior of rats
| Autor: | Rubén N. Muzio, Mauricio R. Papini, Santiago Pellegrini, Alba Elisabeth Mustaca |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
medicine.medical_specialty
Health (social science) medicine.drug_class Experimental and Cognitive Psychology CONSUMMATORY BEHAVIOR Anxiolytic RATS Education Chlordiazepoxide Developmental psychology CIENCIAS SOCIALES Sucrose solution PARTIAL REINFORCEMENT Internal medicine Developmental and Educational Psychology medicine Animal behavior Reinforcement Benzodiazepine SUCCESSIVE NEGATIVE CONTRAST Psicología Neuropsychology and Physiological Psychology Negative contrast Endocrinology Partial reinforcement Psychology medicine.drug |
| Zdroj: | Learning and Motivation. 35:303-321 |
| ISSN: | 0023-9690 |
| DOI: | 10.1016/j.lmot.2004.04.001 |
| Popis: | Rats given access to a 32% sucrose solution later reject a 4% solution significantly more than controls that have only received the 4% solution. In Experiment 1, this consummatory successive negative contrast (cSNC) effect was attenuated by previous exposure to 50% partial reinforcement. Furthermore, recovery from cSNC was also facilitated by partial reinforcement. In Experiment 2, the attenuating effects of partial reinforcement on cSNC were eliminated by administration of the benzodiazepine anxiolytic chlordiazepoxide (5 mg/kg) before nonreinforced trials. In Experiment 3, the attenuating effect of partial reinforcement was greater after a shift from 32 to 6% solution, than after a shift from 32 to 2% solution. The parallels between the effects of partial reinforcement on consummatory and instrumental behavior are discussed. Fil: Pellegrini, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina Fil: Muzio, Ruben Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina Fil: Mustaca, Alba Elisabeth. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina Fil: Papini, Mauricio Roberto. Texas Christian University; Estados Unidos |
| Databáze: | OpenAIRE |
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