Abstract

Audition in Anolis grahami was investigated using classical conditioning of subjects within a simulated natural habitat. The conditioned stimulus (CS) was a tone which matched the dominant frequency of the species' agonistic type A vocalization; shoving a subject from its perch with a rod was the aversive unconditioned stimulus (UCS). Before conditioning experiments took place, baseline observations showed no observable responses by the lizards to the tone. Furthermore, during the conditioning experiments, evidence of learning (i.e., orienting and avoidance behavior during presentation of the tone) was more evident when visual cues were reduced. These results indicate that the species will respond to sounds, but that it has a greater reliance on visual rather than auditory information.

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