期刊
LEARNING & MEMORY
卷 21, 期 5, 页码 258-262出版社
COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT
DOI: 10.1101/lm.034231.113
关键词
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Forty mice acquired conditioned responses to stimuli presented in a multiple schedule with variable inter-trial intervals (ITIs). In some trials, reinforcement was preceded by a variable conditioned stimulus (CS), while other trials were reinforced following distinctive fixed-duration CS. A third stimulus was presented but never paired with reinforcement. Subjects in five groups experienced ITIs of different durations. Acquisition of responding to each stimulus depended only on the cycle-to-trial ratio (C/T), and thus on the temporal contingency of each stimulus. Acquisition was unaffected by whether CSs were of fixed or variable duration.
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