Terry W S
Department of Psychology, University of North Carolina at Charlotte 28223, USA.
J Exp Psychol Anim Behav Process. 1996 Oct;22(4):472-9. doi: 10.1037//0097-7403.22.4.472.
Reward omission was used to produce retroactive interference in a serial delayed-alternation task. Rats were given forced choices in 3 T mazes presented in succession followed by free choices in which the alternate arm in each maze was rewarded. Nonreward during the delay between forced- and free-choice runs produced a decrement in performance (i.e., retroactive interference) in comparison to reward during the delay. Interference in retention of the first maze in a list occurred when the second maze contained surprising reward or omission (i.e., an outcome contrary to previous training in that maze) in comparison to expected reward or omission. In addition to producing retroactive interference, omission sometimes increased alternation in the maze in which it occurred. These results support a differential rehearsal hypothesis of spatial memory.
在连续延迟交替任务中，采用奖励缺失来产生倒摄干扰。给大鼠连续呈现3个T型迷宫并进行强制选择，随后进行自由选择，每个迷宫的交替臂会得到奖励。与延迟期间给予奖励相比，强制选择和自由选择运行之间的延迟期间不给予奖励会导致表现下降（即倒摄干扰）。当第二个迷宫中的奖励或缺失令人惊讶（即与该迷宫先前训练的结果相反），与预期的奖励或缺失相比时，会对列表中第一个迷宫的记忆保持产生干扰。除了产生倒摄干扰外，奖励缺失有时会增加其所在迷宫中的交替行为。这些结果支持了空间记忆的差异复述假说。
