Discriminated and nondiscriminated avoidance conditioning of the rearing response in rats |
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| Authors: | Akira Shishimi Hiroshi Imada |
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| Institution: | 1. Kwansei Gakuin University, Uegahara, 662, Nishinomiya, Japan
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| Abstract: | Experiment 1 employed a shock box in which light beams ran at 10, 15, 20, or 25 cm above the floor level of the box. Four groups of nine rats each were trained to avoid shock by cutting the light beams or letting them pass by, which the animal accomplished by upward or downward change of its posture. Training employed a discriminated avoidance paradigm, 60 trials per day for 5 days, with a 5-sec CS-US interval. Acquisition of the rearing avoidance response was observed only in the 15-cm condition. Using the same apparatus as in Experiment 1 and with a beam height of 15 cm, the rearing avoidance response was successfully conditioned in five rats using a nondiscriminated avoidance conditioning paradigm. There was good evidence of temporal discrimination in these animals. |
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