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目标的窗口:瞳孔工作记忆签名前性地适应任务需求

Yueying Dong, Yun-Chen Hung, Connie Xie

bioRxiv : the preprint server for biology

|December 22, 2025

概括

瞳孔膨胀反映了工作记忆 (WM) 的内容,即使是复杂的场景. 这种瞳孔反应适应了视觉信息的使用方式,而不仅仅是其感官特征.

科学领域:

认知神经科学认知神经科学
心理学心理学心理学

背景情况:

瞳孔的光反应越来越多地被认为超出了脑干反射.
新出现的证据表明,瞳孔膨胀反映了工作记忆 (WM) 内容.
这意味着WM可能会利用早期的传感运动系统.

研究的目的:

调查瞳孔WM反应是否延伸到复杂的,现实世界的刺激.
为了确定这种反应是否适应不同的行为目标和特征强调.
探索瞳孔WM信号的性质:回顾性感官回声与前性目标导向维护.

主要方法:

参与者观看了自然场景的图像.
在记忆任务期间,对瞳孔反应进行了监测.
任务操纵特征强调 (视觉细节与语义类别) 来测试适应性WM策略.

主要成果:

在记住的自然场景中观察到特征特定的瞳孔WM效应.
这种效果取决于任务强调视觉维护.
瞳孔反应根据预期使用的记忆内容进行了调整.

结论:

瞳孔WM反应一般化为复杂的视觉刺激.
这种反应不是过去感官输入的简单回声.
瞳孔信号动态地适应未来的记忆需求和行为目标.

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