Conditional and unconditional components of post-shock freezing
Conditional and unconditional components of post-shock freezing
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DOI：
10.1007/bf03001163
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发表时间：
1980-10
期刊：
影响因子：
--
通讯作者：
M. Fanselow
中科院分区：
文献类型：
--
作者：
M. Fanselow
大鼠在一个设备中接受电击，然后在该设备或另一个设备中评估休克后的“冻结”。在休克后立即或延迟24小时后进行冻结评估。当动物在不同的设备中进行测试时，电击后的冻结减少了。24小时的延迟并没有减少冻结。因此，所有的休克后冻结都可归因于情境线索和情境之间的泛化。这种模式的结果表明，休克后冻结完全是由与休克相关的线索引发的条件恐惧产生的，而休克后冻结的任何部分都不是由休克直接引发的无条件反应（UR）。
Rats received shocks in one apparatus, and post-shock “freezing” was then assessed in that apparatus or in a different one. The assessment of freezing was made immediately after shock or after a 24-hour delay. Post-shock freezing was reduced when the animals were tested in a different apparatus from that in which shocks had been administered. No reduction in freezing was caused by the 24-hour delay. All the post-shock freezing was therefore attributable to contextual cues and to generalization between contexts. This pattern of results suggests that post-shock freezing is entirely produced by conditioned fear elicited by cues associated with shock and that no part of post-shock freezing is an unconditional response (UR) directly elicited by shock.