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通过情绪调节感知:对负值刺激的敏感性和感知大小发生变化
Tal Shalev1, Bat-Sheva Hadad2,3
1School of Neurodiversity in Education, Edmond J. Safra Brain Research Center, University of Haifa, 31905, Haifa, Israel.
Attention, perception & psychophysics
|July 10, 2025
概括
情绪刺激会影响视觉感知,影响敏感性和偏见. 威胁图像显示敏感性降低,但在更高的强度下,偏差较轻,这表明对强烈刺激的准确感知有驱动力.
科学领域:
- 认知心理学 认知心理学
- 视觉感知 视觉感知 视觉感知
- 情感处理是一种情感处理.
背景情况:
- 众所周知,情感刺激可以调节各种感知领域的视觉处理.
- 现有的研究表明,情绪调节可以影响感知敏感性和偏见.
研究的目的:
- 调查情绪调制是否影响感知灵敏度,感知大小 (偏差) 或两者.
- 检查与威胁相关的刺激对持续时间和大小感知的影响.
主要方法:
- 参与者复制了与威胁相关的 (蜘蛛) 和中性刺激 (磁盘,蝶) 的持续时间 (实验1) 和大小 (实验2).
- 感知灵敏度通过体内标准偏差的复制品来评估.
- 使用回归到平均值来测量感知偏差.
主要成果:
- 负值刺激显示,在更大的数值中,生殖标准偏差略有增加,这表明灵敏度降低.
- 观察到回归到平均偏差,但这些偏差在更高的刺激强度下降.
- 低估高于平均值的大小是温和的,表明感官输入可靠性和强烈刺激的感知偏差之间的关系发生了变化.
结论:
- 大小感知通常偏向于经历刺激的中心倾向,即使是威胁刺激.
- 对于强化的刺激值,感知偏差会减弱,这可能会促进对重要事件的更真实感知.
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