Utah State University.
J Exp Anal Behav. 2020 Sep;114(2):163-178. doi: 10.1002/jeab.625. Epub 2020 Aug 27.
Resurgence refers to an increase in a previously suppressed target behavior with a relative worsening of conditions for a more recently reinforced alternative behavior. This experiment examined the relation between resurgence and the magnitude of a reduction in the rate of reinforcement for the alternative behavior. Groups of both male and female rats initially pressed a target lever for food on a variable-interval (VI) 30-s schedule. In a second phase, responding to the target lever was extinguished for all groups and pressing an alternative lever was reinforced on a VI 10-s schedule. Next, the rate of reinforcement for alternative behavior was reduced differentially across groups by arranging extinction, VI 80-s, VI 40-s, VI 20-s, or continued VI 10-s reinforcement. Target responding increased as an exponential function of the magnitude of the reduction in alternative reinforcement rates. With the exception that males appeared to show higher rates of target responding in baseline and higher rates of alternative responding in other phases, the overall pattern of responding across phases was not meaningfully different between sexes. The pattern of both target and alternative response rates across sessions and phases was well described quantitatively by the Resurgence as Choice in Context model.
复燃是指先前被抑制的目标行为随着最近强化的替代行为的条件相对恶化而增加。本实验研究了复燃与替代行为的强化率降低幅度之间的关系。雄性和雌性大鼠的两组最初都按压目标杆以获得可变间隔（VI）30 秒的食物。在第二阶段，所有组的目标杆反应都被消除，按压替代杆在 VI 10 秒的时间表上得到强化。接下来，通过安排消退、VI 80 秒、VI 40 秒、VI 20 秒或继续 VI 10 秒强化，在不同组之间有差异地降低替代行为的强化率。替代反应率的降低幅度越大，目标反应就越呈指数增加。除了雄性在基线时似乎表现出更高的目标反应率和其他阶段更高的替代反应率外，各阶段之间的总体反应模式在性别间没有明显差异。在整个会话和阶段中，目标和替代反应率的模式都被很好地用上下文选择中的复燃模型来描述。
