Zeng Qing, Jia Yanlei, Wang Yuanjun, Zhang Junhua, Liu Chuyi, Zheng Xifu
Center for Studies of Psychological Application, South China Normal University, Guangzhou, China; Center of Mantel Health, Jinan University, Guangzhou, China.
Center for Studies of Psychological Application, South China Normal University, Guangzhou, China.
Conscious Cogn. 2015 Sep;35:171-7. doi: 10.1016/j.concog.2015.05.011. Epub 2015 Jun 3.
In the present study, we examined the impact of verbal instruction during extinction of human fear-conditioning. We extended the study of Raes, De Houwer, Verschuere, and De Raedt (2011) by controlling for context conditioning and recording unconditioned stimulus expectancy online in a within-subject design. We informed participants of an alternative reason for the absence of the aversive unconditioned stimulus after extinction had been carried out, to see if such instruction could induce retrospective protection from extinction. The results demonstrated that both the expectancy of an aversive outcome and conditioned skin conductance were significantly increased for the conditioned stimulus targeted by the instruction. Thus extinction was reversed by the concurrent presence of an alternative cause for the absence of the unconditioned stimulus.
在本研究中，我们考察了言语指导在人类恐惧条件反射消退过程中的影响。我们扩展了雷斯、德休尔、韦尔舒尔和德赖特（2011年）的研究，通过在被试内设计中控制情境条件反射并在线记录无条件刺激预期。在消退过程完成后，我们告知参与者厌恶无条件刺激未出现的另一个原因，以观察这种指导是否能诱导对消退的回顾性保护。结果表明，对于受到该指导的条件刺激，厌恶结果的预期和条件性皮肤电传导均显著增加。因此，无条件刺激未出现的另一个原因的同时存在逆转了消退。
