Williams B A
Department of Psychology, University of California, San Diego, La Jolla 92093-0109, USA.
J Exp Anal Behav. 2001 May;75(3):362-5; discussion 367-78. doi: 10.1901/jeab.2001.75-362.
Traditional two-factor theory is supported by parallels in the clinical literature. Theoretical problems with two-factor theory are obviated by the role of safety signals, which serve as positive conditioned reinforcers and retard the extinction of conditioned fear.
传统的双因素理论得到了临床文献中相似情况的支持。安全信号的作用消除了双因素理论的理论问题,安全信号作为积极的条件强化物,延缓了条件性恐惧的消退。