In one experiment with rats, we investigated the impact of a retrieval-extinction procedure on spontaneous recovery of operant responses. Four groups of rats were trained to press a lever for beer during the first phase of the experiment. In the second phase, lever pressing underwent extinction. Each extinction session was preceded by brief exposure to the beer in two of the groups, either 15 or 120 min before each session. Then, the four groups were tested twice to measure spontaneous recovery. The first test was carried out immediately after the last extinction session for all rats. The second test took place after 60 min for one group, while for the remaining groups it was conducted after 5 days. We found spontaneous recovery in the three groups that experienced a delay of 5 days between the first and second test. However, the spontaneous recovery effect was attenuated in the group for which the reinforcer had been presented 15 min before each extinction session. Our data indicates that the retrieval-extinction paradigm may be a suitable behavioral technique for reducing the reappearance of beer-seeking behavior.

在一项大鼠实验中，我们研究了检索-消退过程对操作反应自发恢复的影响。在实验的第一阶段，四组老鼠被训练按下杠杆来获取啤酒。在第二阶段，杠杆按压逐渐消失。在每个消退阶段之前，两组人都会在每个阶段之前 15 分钟或 120 分钟短暂接触啤酒。然后，对四组进行两次测试以测量自发恢复。第一次测试是在所有大鼠最后一次灭绝之后立即进行的。一组在 60 分钟后进行第二次测试，而其余组则在 5 天后进行。我们发现，在第一次和第二次测试之间延迟了 5 天的三组中，我们发现了自发恢复。然而，在每次消退训练前 15 分钟给予强化剂的组中，自发恢复效果减弱。我们的数据表明，检索-灭绝范式可能是减少寻找啤酒行为再次出现的合适行为技术。