What question did this study set out to answer?

To evaluate how perceptual salience of stimuli affects choice behavior in rats during the suboptimal choice procedure.

March 14, 2026Behavioural ProcessesOpen Access

Rats’ preferences in the suboptimal-choice procedure are affected by the perceptual salience of the stimuli

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Experiment demonstrates how stimuli salience influences choice in rats, indicating implications for understanding reinforcement behavior.

To evaluate how perceptual salience of stimuli affects choice behavior in rats during the suboptimal choice procedure.
Trained twelve rats using an ABA design with two stimuli differing in salience.
Stimuli function as S+ predicting reinforcement and S- predicting absence of reinforcement was reversed across conditions.
Monitored choices between stimuli during trials.
Salient stimuli as S+ increased choice for the discriminative alternative.
Salient stimuli as S- led to strong rejection of the discriminative alternative.
Perceptual salience modulated animal choice in the suboptimal choice procedure.

González-Torres et al. (2026) studied this question.

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