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操纵强化概率改变了预期的厌恶刺激的时间高估
1School of Psychology, Liaoning Normal University, Dalian, 116029, China.
Psychological research
|October 10, 2023
概括
预测恐惧刺激会扭曲时间感知. 这项研究发现,只有当恐惧刺激的概率为50%,而不是100%,突出显示强化概率时,才会发生时间高估.
科学领域:
- 认知心理学 认知心理学
- 神经科学是一个神经科学.
- 心理物理学的精神物理.
背景情况:
- 情绪显著影响间隔时间.
- 预期的恐惧刺激可能会导致时间过高估计,但这种效应并不总是一致的.
- 了解强化概率在恐惧预测中的作用对于解释时间感知扭曲至关重要.
研究的目的:
- 研究预期的恐惧刺激的强化概率如何影响时间感知.
- 在可预测的情感场景中检查时间判断,有不同的威胁概率.
- 澄清预期恐惧导致时间高估的条件.
主要方法:
- 参与者完成了一项在威胁 (CS+) 和安全 (CS-) 提示期望下进行时切割任务.
- 通过将一个有条件的刺激 (CS+) 与一个电气无条件的刺激 (US) 配对来建立恐惧条件.
- 威胁提示的强化概率在实验区块中被操纵在50%到100%之间.
主要成果:
- 只有当威胁提示被呈现为50%的强化概率时,才观察到时间过高估计.
- 在100%的强化概率下,没有发现显著的时间感知差异.
- 焦虑影响了个人对时间判断的变化,但没有影响整体趋势.
结论:
- 预期的厌恶刺激可能会导致时间的高估,这取决于强化概率.
- 在恐惧调节中50%的强化概率是有效的操纵预期的厌恶刺激对时间高估的影响.
- 研究结果强调了恐惧预期,强化和时间感知之间的微妙关系.
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