Abstract
Rats were exposed to an autoshaping procedure in which each lever-contact or leverpress delayed trial offset and, hence, food delivery. Yoked subjects received identical trial-food pairings as did delay subjects. This procedure was studied at two delay values (2.5 and 10.0 sec) in experimentally naive rats and those which had previously received 25 sessions of autoshaping. The delay procedure retarded the acquisition of autoshaped responding in naive subjects and reduced responding for experienced subjects. Yoked subjects responded at higher levels than did delay subjects throughout training.
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Locurto, C.M., Duncan, H., Terrace, H.S. et al. Autoshaping in the rat: Interposing delays between responses and food. Animal Learning & Behavior 8, 37–44 (1980). https://doi.org/10.3758/BF03209728
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DOI: https://doi.org/10.3758/BF03209728