Stimulus dynamics increase the self-administration of compound visual and auditory stimuli

NEUROSCIENCE LETTERS

卷:511

Article

Olsen, Christopher M.^1,2,3  Winder, Danny G.^1,2,3 

[1] Vanderbilt Univ, Dept Mol Physiol & Biophys, Sch Med, Nashville, TN 37232 USA

[2] Vanderbilt Univ, Ctr Mol Neurosci, Sch Med, Nashville, TN 37232 USA

[3] Vanderbilt Univ, Sch Med, JF Kennedy Ctr Res Human Dev, Nashville, TN 37232 USA

关键词: Operant sensation seeking;    Sensory stimuli;    Operant learning;    Novelty seeking;   

DOI  :  10.1016/j.neulet.2011.12.068

来源: Elsevier

【 摘 要 】

Animals will acquire an operant task using sensory stimuli as a primary reinforcer. Many operant tasks use sensory stimuli as cues that are paired with other primary reinforcers. Recent studies have called attention to this potential confound, but there has not been a parametric assessment of the effect of stimulus variability on operant responding. We found that stimulus variability increased the amount of operant responding exhibited by mice, a phenomenon observed under both fixed- and progressive-ratio schedules. (C) 2012 Elsevier Ireland Ltd. All rights reserved.

【 授权许可】

Free