The acquisition of a running response as a function of odor buildup,squad rotation,and introduction of naive subjects |
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| Authors: | Robert E Prytula Stephen F Davis J J Fanning |
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| Institution: | 1. Middle Tennessee State University, 37132, Murfreesboro, Tennessee
2. Emporia State University, 66801, Emporia, Kansas
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| Abstract: | A three-phase experiment was conducted in which rats received a double-alternation schedule of reward and nonreward. During Phase 1, the baseline period, double-alternation behavior was displayed earlier and more strongly by subjects run last in the daily sequence. This finding suggests that both reward and nonreward odor cues are cumulative over subjects. During Phase 2, a subject-rotation procedure was initiated; that is, each day the last subject in the previous day’s running sequence was moved to the first position in the sequence, etc. Rotation to the first position in the group led to an immediate disruption of responding. During Phase 3, two naive rats were inserted at the beginning of the running sequence and two at the end. The results, which showed that the naive animals placed at the end of the sequence acquired the patterning response much faster than those placed in the beginning positions, are interpreted as reflecting preparedness to respond to such intensified odors. |
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