没有威胁的影响 不确定性对恐惧的普遍化
Asimina Aslanidou1, Marta Andreatta1,2, Alex H K Wong1
1Department of Psychology, Education and Child Studies, Erasmus University Rotterdam, Rotterdam, The Netherlands.
Psychophysiology
|August 25, 2023
概括
这项研究发现,不同程度的威胁不确定性并没有显著改变健康个体的恐惧概括性. 然而,更高的不确定性与更强的威胁预期概括有关,与不确定性不容忍相关.
科学领域:
- 心理学 心理学 心理学
- 神经科学是一个神经科学.
- 认知科学 认知科学
背景情况:
- 恐惧的泛化和不确定性与焦虑障碍有关.
- 威胁不确定性和恐惧泛化之间的相互作用仍然不太清楚.
研究的目的:
- 调查不同级别的威胁不确定性是否影响恐惧泛化.
- 探索不确定性和恐惧反应之间的关系.
主要方法:
- 不同的恐惧调节与不同的有条件刺激-无条件刺激 (CS-US) 意外情况 (80%,60%,40%) 来操纵威胁的不确定性.
- 使用条件刺激和形态的泛化测试.
- 测量主观 (预期,价值,兴奋),心理生理学 (皮肤导电反应 - SCR) 和视皮层 (稳定状态视觉唤起潜力 - ssVEPs) 恐惧指数.
主要成果:
- 参与者对无条件刺激计划 (美国) 的期望与他们的强化计划一致.
- 对条件刺激 (CS+/CS-) 的歧视性皮肤导电性反应 (SCR) 增加,不确定性更高.
- 在主观,SCR或ssVEP措施中,没有观察到威胁不确定性对恐惧概括性的显著影响.
- 在威胁预期等级中概括的强度和对不确定性的处置性不容忍之间发现了正相关性.
结论:
- 仅仅是威胁的不确定性似乎并不能调节健康个体的恐惧泛化.
- 不确定性不容忍的个体差异可能会影响威胁预期的概括.
- 需要进一步的研究来澄清不确定性和恐惧处理之间的复杂关系.
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