TY - JOUR
T1 - unconditioned stimulus The effects of unconditioned stimulus experience on taste-aversion learning
T2 - Retroactive and proactive effects on conditioned response
AU - Sakatsume, Kazuyuki
N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 1984/1
Y1 - 1984/1
N2 - Two experiments were conducted to study the effect of US experience upon CR in the taste-aversion learning situation. In Experiment I, like many other learning situations (e.g., CER situation), it was tested whether the US experience had any effect on CR in the taste-aversion learning. After conditioning (CS1: saccharin solution (0.1%), US: LiCl solution (0.15 mol)), rats received US alone six times. At this time, the effects of contextual cues were also tested. Then, the extinction procedure was administered to test the retroactive effect of US experience and the aversion to the CS1 was tested. Further, rats were conditioned to the CS2 (NaCl solution (9 g/1)) to study the proactive effect of the US experience. In Experiment II, the strength of US presented alone after conditioning was systematically varied across groups (0. 05, 0. 075, 0.15, 0. 3, and 0. 45 mol). The rest of the procedures were the same as in Experiment I. From Experiments I and II, it was found that the stronger the US strength was, the more reduced was the CR to the CS1, and the more retarded was the formation of CR to the CS2. The results suggest that the CS-US association exists in the taste-aversion learning, and the appearance of the CR was dependent on the state of the US memory.
AB - Two experiments were conducted to study the effect of US experience upon CR in the taste-aversion learning situation. In Experiment I, like many other learning situations (e.g., CER situation), it was tested whether the US experience had any effect on CR in the taste-aversion learning. After conditioning (CS1: saccharin solution (0.1%), US: LiCl solution (0.15 mol)), rats received US alone six times. At this time, the effects of contextual cues were also tested. Then, the extinction procedure was administered to test the retroactive effect of US experience and the aversion to the CS1 was tested. Further, rats were conditioned to the CS2 (NaCl solution (9 g/1)) to study the proactive effect of the US experience. In Experiment II, the strength of US presented alone after conditioning was systematically varied across groups (0. 05, 0. 075, 0.15, 0. 3, and 0. 45 mol). The rest of the procedures were the same as in Experiment I. From Experiments I and II, it was found that the stronger the US strength was, the more reduced was the CR to the CS1, and the more retarded was the formation of CR to the CS2. The results suggest that the CS-US association exists in the taste-aversion learning, and the appearance of the CR was dependent on the state of the US memory.
KW - lithium chloride
KW - post-conditioning
KW - rats
KW - retro- and proactive effect
KW - taste aversion
KW - unconditioned stimulus experience
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U2 - 10.4992/jjpsy.55.80
DO - 10.4992/jjpsy.55.80
M3 - Article
AN - SCOPUS:85007978604
VL - 55
SP - 80
EP - 87
JO - Shinrigaku Kenkyu
JF - Shinrigaku Kenkyu
SN - 0021-5236
IS - 2
ER -