Abstract
Rats were runway trained six trials per day for 32 days with alternating values of sucrose rewards (32% and 4%), and an interval between trials of about 20 sec. The animals were trained without the motivation of hunger: they were allowed free access to food for 1.5 h prior to each training session. Patterning developed. Running times were faster, in the later stages of training, for 32% rewards than for 4% rewards. Patterning had not been observed in similar experiments with sucrose (Burns, 1976) and hunger-motivated rats.
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This work was supported in part by a grant from the Charles L. Mix Foundation to R.A.B.
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Burns, R.A., Griner, S.E. Single-alternation patterning in sated, sucrose-rewarded rats. Bull. Psychon. Soc. 31, 35–36 (1993). https://doi.org/10.3758/BF03334133
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DOI: https://doi.org/10.3758/BF03334133