Common toads (Bufo arenarum) learn to anticipate and avoid hypertonic saline solutions
| Autor: | Mauricio R. Papini, M. Florencia Daneri, Rubén N. Muzio |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
Male
Saline Solution Hypertonic Analysis of Variance CIENCIAS MÉDICAS Y DE LA SALUD Conditioning Classical Avoidance Conditioning Neurociencias AVOIDANCE CONDITIONING Association Learning Otras Psicología Anatomy Biology Psicología Hypertonic saline HEART-RATE CONDITIONING CIENCIAS SOCIALES Medicina Básica Avoidance Learning Bufo arenarum Animals HYPERTONIC SALINE REINFORCER Psychology (miscellaneous) Ecology Evolution Behavior and Systematics TOADS |
| Popis: | Toads (Bufo arenarum) were exposed to pairings between immersion in a neutral saline solution (i.e., one that caused no significant variation in fluid balance), followed by immersion in a highly hypertonic saline solution (i.e., one that caused water loss). In Experiment 1, solutions were presented in a Pavlovian conditioning arrangement. A group receiving a single neutral-highly hypertonic pairing per day exhibited a greater conditioned increase in heart rate than groups receiving either the same solutions in an explicitly unpaired fashion, or just the neutral solution. Paired toads also showed a greater ability to compensate for water loss across trials than that of the explicitly unpaired group. Using the same reinforcers and a similar apparatus, Experiment 2 demonstrated that toads learn a one-way avoidance response motivated by immersion in the highly hypertonic solution. Cardiac and avoidance conditioning are elements of an adaptive system for confronting aversive situations involving loss of water balance. Fil: Daneri, Maria Florencia. 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. Universidad de Buenos Aires. Facultad de Psicología; Argentina Fil: Papini, Mauricio. Texas Christian University; Estados Unidos 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. Universidad de Buenos Aires. Facultad de Psicología; Argentina |
| Databáze: | OpenAIRE |
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