Willcocks Andrea L, McNally Gavan P
School of Psychology, University of New South Wales, Sydney, Australia.
Behav Neurosci. 2011 Aug;125(4):541-50. doi: 10.1037/a0024100.
We studied the role of context in reacquisition of extinguished reward-seeking. Rats were trained to respond for alcoholic beer, then extinguished and retrained. Reacquisition was faster than acquisition regardless of whether retraining occurred in the original training context, the extinction context, a novel context, or a context with a mixed history of reinforcement. Reacquisition was also rapid after extended extinction training. Nonetheless, context did significantly influence reacquisition via affecting latency to first response: rats took significantly longer to initiate responding when tested in the extinction context. These results suggest that reacquisition of drug and reward seeking is determined by an inhibitory influence caused by the extinction context and a facilitatory influence caused by reintroduction of the reinforcer (Bouton, 1993).
我们研究了情境在消退的奖赏寻求行为重新习得中的作用。大鼠被训练对酒精啤酒做出反应，然后进行消退训练并重新训练。无论重新训练是在原始训练情境、消退情境、新情境还是具有混合强化历史的情境中进行，重新习得都比初次习得更快。在延长的消退训练后重新习得也很快。尽管如此，情境确实通过影响首次反应的潜伏期对重新习得产生了显著影响：在消退情境中进行测试时，大鼠开始做出反应的时间明显更长。这些结果表明，药物和奖赏寻求行为的重新习得是由消退情境引起的抑制性影响和强化物重新引入引起的促进性影响所决定的（布顿，1993）。
