简单的几何形状的情感内容促进视觉大小感知
1Research Center of Brain and Cognitive Neuroscience, Liaoning Normal University, Dalian 116029, China; Key Laboratory of Brain and Cognitive Neuroscience, Liaoning Province, Dalian 116029, China.
Biological psychology
|February 27, 2025
概括
利的几何形状,如V形状,可以影响类似于威胁刺激的视觉感知. 这种对埃宾豪斯错觉的影响取决于刺激的持续时间,需要认知控制.
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.
- 视觉感知 视觉感知 视觉感知
背景情况:
- 情绪-认知相互作用经常被研究使用威胁刺激,如恐惧的面孔.
- 几何特征,如利的轮,可能有助于复杂刺激的感知威胁.
- 埃宾豪斯错觉是一个成熟的现象,证明了视觉尺寸扭曲.
研究的目的:
- 调查几何形状 (V形状) 是否可以像威胁刺激一样调节视觉大小感知.
- 为了检查主要持续时间和呈现异常度对这种调制的影响.
- 确定前额叶皮质在调解这种效果中的作用.
主要方法:
- 使用向下指向的V形状和曲线形状作为素数来调节埃宾豪斯幻觉.
- 不同的主要呈现时间 (150毫秒对比16.7毫秒) 和离心率 (4°对比8°).
- 采用间歇性甲爆刺激来激发右背侧前额叶皮层.
主要成果:
- 与长时间 (150 ms) 的曲率素数相比,V形素数显著降低了埃宾豪斯错觉的强度.
- 在短时间 (16.7毫秒) 中,这种效应仅对中心呈现而不是外围呈现具有意义.
- 右背侧前额叶皮层的激发取消了与威胁相关的调制效应.
结论:
- 具有威胁相关特征的几何形状可以影响视觉感知,类似于明确的威胁刺激.
- 这种效果需要详细的几何处理,并依赖于前额叶皮层的上下认知控制.
- 这些发现突出了几何形状,威胁感知和视觉处理之间的复杂关系.
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