Assessments of changes in the effective salience of stimulus elements as a result of stimulus preexposure

Blair, C. A. J. and Wilkinson, Anna and Hall, G. (2004) Assessments of changes in the effective salience of stimulus elements as a result of stimulus preexposure. Journal of Experimental Psychology: Animal Behavior Processes, 30 (4). pp. 317-324. ISSN 0097-7403

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Item Type:Article
Item Status:Live Archive

Abstract

Rats received exposure to 3 flavor compounds, AX and BX, presented in alternation, and CX, presented on a separate block of trials. The hypothesis that this treatment would leave B effectively more salient than C was tested in 3 ways. Experiment 1 showed that the unconditioned response evoked by B was stronger than that evoked by C. Experiment 2 showed that B was more effective than C when used as a reinforcer in a sensory preconditioning procedure. Experiment 3 showed that B was learned about more readily than C as a conditioned stimulus in flavor aversion conditioning. Alternating preexposure to 2 similar stimuli may protect their distinctive features from the loss of salience normally produced by nonreinforced exposure to a stimulus.

Keywords:animal, article, conditioned reflex, learning, male, rat, reinforcement, reproducibility, Animals, Conditioning, Classical, Rats, Reinforcement Schedule, Reproducibility of Results
Subjects:C Biological Sciences > C300 Zoology
D Veterinary Sciences, Agriculture and related subjects > D322 Animal Physiology
Divisions:College of Science > School of Life Sciences
ID Code:9126
Deposited On:03 May 2013 10:31

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