역행적 자극제시에 따른 순막반응의 고전적 조건화 = Classical Conditioning of the Rabbit's Nictating Membrane Response as a Function of Backward CS-US Pairings

다국어 초록 (Multilingual Abstract)

This investigation was conducted to determine the effects of backward CS-US pairings on subsequent forward conditioning in the rabbit's nictitating membrane response (NMR). The CS-US backward pairing of 72, 216 and 432 trials was administered, and the test results were analysed by the third CR. Thirty-two male albino rabbits were randomly assigned to one of the four groups. CS-US presentations of 0 (CONTROL), 72 (BACK 1:1 day backward session), 216 (BACK3:3 day backward sessions), and 432 (BACK6:6 day backward sessions) pairings started on the day following one day of adaptation session, and then one day of exiction session was followed. For the 6 days of the forward ISI 800 delay conditioning, each subjects received 80 trials of which 72 trials were CS-US paired and 8 trials were CS-alone presentations. This 8 CS-alone trials were randomly assigned to one of each 10 trial-blocks of one day session. There were significant difference between groups on the third CR. Specifically, while BACK1 and BACK3 was significantly higher than other groups (p $lt; .05), BACK6 was not significantly higher than control. It is suggested that results domonstrate a retardation of forward conditioning on the effect of CS-US backward pairings.