Abstract
Three groups of rats (n = 4) received runway training in Phase 1 to establish, in each group, one stimulus as a signal for a single nonreinforced (N) trial and another stimulus as a signal for four consecutive N trials. All groups received consistent reinforcement (CR) in Phase 2, with Group N-4 receiving the signal for four N trials and Group N-1 receiving the signal for one N trial, twice each day. Group CR received no signal presentations in Phase 2. Phase 2 was followed by 20 unsignaled extinction trials, 5 trials per day. As predicted by the signal-generated memory hypothesis, Group N-4 was more resistant to extinction than Groups N-1 and CR.
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Haggbloom, S.J., Bufkin, D.A. Signal-generated memory for different N-lengths: Effects on resistance to extinction. Bull. Psychon. Soc. 31, 143–145 (1993). https://doi.org/10.3758/BF03334164
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DOI: https://doi.org/10.3758/BF03334164