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隐藏的视觉注意力对瞳孔大小在感知色期间的影响

Ana Vilotijević¹, Sebastiaan Mathôt¹

¹Department of Psychology, University of Groningen, 9712TS Groningen, the Netherlands.

Cortex; a journal devoted to the study of the nervous system and behavior

|November 12, 2024

概括

认知因素影响瞳孔大小. 这项研究发现,即使视觉刺激从感知中消失,瞳孔大小也会被隐蔽的视觉注意力调节,尽管比明显感知刺激的程度要小.

科学领域:

认知神经科学认知神经科学
视觉感知视觉感知视觉感知

背景情况:

众所周知,瞳孔的大小是由注意力和感知等认知因素调节的.
以前的研究集中在主观亮度如何影响瞳孔大小.
当主观亮度降低或不存在时,瞳孔大小调节的影响仍然未被探索.

研究的目的:

为了研究当明亮或黑暗的主观体验减少尽管刺激的物理存在,瞳孔大小是如何受到影响.
检查感知色在调制隐形视觉注意力和瞳孔大小之间的关系中的作用.

主要方法:

使用了两个实验块:色和非色.
在"色区块"中,刺激在一个固定位置呈现,以诱导感知色.
在非色区块中,刺激交替位置以防止色. 参与者秘密地注意刺激,并执行次要任务.

主要成果:

隐蔽视觉注意力调节的瞳孔大小,即使在感知色.
与非色区块相比,在色区块中,注意力对瞳孔大小的影响减少了.
通过注意力的瞳孔尺寸调节随着主观的亮度/黑暗体验的减少而减少.

结论:

瞳孔的大小是通过隐蔽注意力一致调节的.
瞳孔尺寸调节的程度受主观视觉体验的强度的影响.
瞳孔大小的认知调制反映了高水平和低水平视觉处理的组合.

关键词:

适应适应适应隐藏的注意力隐藏的注意力感知性的色正在消失.瞳孔的大小瞳孔的大小

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