一种衡量信号与非信号冲击相对厌恶程度的比率指标。
A rate measure of the relative aversiveness of signalled vs unsignalled shock.
出版信息
J Exp Anal Behav. 1973 Jan;19(1):33-8. doi: 10.1901/jeab.1973.19-33.
Five rats were trained on a two-component multiple schedule with each component consisting of a two-link chain schedule. Differential response suppression in the initial links of the chain schedules was used as a measure of the relative aversiveness of events introduced into the subsequent terminal links. When unsignalled shock was scheduled in one terminal link and signalled shock in the other (in addition to equal numbers of food reinforcers), responding was suppressed to a greater degree in the initial link preceding the unsignalled-shock condition. Reversing the terminal-link positions of unsignalled shock and signalled shock led to a reversal of the differential response suppression in the initial links. These results confirm previous findings that signalled shock is less aversive than unsignalled shock and extend the generality of this phenomenon from choice measures to rate measures of aversiveness.
五只老鼠在一个两部分的多重时间表上接受训练，每个部分都由一个两链接链时间表组成。在链时间表的初始链接中使用差异反应抑制作为引入后续终端链接的事件的相对厌恶程度的衡量标准。当未信号的冲击在一个终端链接中安排，而信号的冲击在另一个终端链接中安排（除了相等数量的食物强化物）时，在未信号冲击条件之前的初始链接中，反应受到更大程度的抑制。将未信号冲击和信号冲击的终端链接位置颠倒，导致初始链接中的差异反应抑制发生反转。这些结果证实了先前的发现，即信号冲击比未信号冲击的厌恶程度更低，并将这种现象从选择测量扩展到厌恶程度的速率测量。
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