视网膜异常度调节以突出为主,而不是以相关性为主的视觉选择
Mieke Donk1,2, Elle van Heusden3,4, Christian N L Olivers3,4
1Department of Experimental and Applied Psychology, Vrije Universiteit Amsterdam, Van der Boechorststraat 5-7, 1081 BT, Amsterdam, the Netherlands. w.donk@vu.nl.
Attention, perception & psychophysics
|January 25, 2024
概括
视觉搜索期间的眼睛运动受到刺激的突出性和相关性的影响. 然而,刺激异常度显著影响选择,有利于更接近的项目,并减少突出性.
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
- 眼神运动行为 眼神运动行为
背景情况:
- 视觉搜索依赖于刺激的突出性和眼动控制的相关性.
- 视野属性,包括感官表示和注意力,随着异常变化而变化.
- 异常度对视觉搜索过程中的刺激选择的影响尚未完全理解.
研究的目的:
- 研究竞争视觉刺激之间的异常差异如何影响由突出性和相关性驱动的选择.
- 为了确定刺激突出度,相关性和视网膜异常度在指导眼睛运动中的相互作用.
主要方法:
- 参与者执行了一个视觉搜索任务,使一个单眼运动到一个定向单眼目标.
- 目标呈现了一个定向单元分心器在不同的偏心 (相同,一个或两个偏心值分开).
- 与分散器相对的目标突出度被操纵.
主要成果:
- 刺激的选择最初是由度 (在300毫秒内) 驱动的,其次是相关性.
- 观察者显示,偏向于选择更接近焦点的刺激,随着偏心差异越大,偏差就会增加.
- 这种中央选择偏差减少了突出性对最终选择结果的影响,而相关性效应不受偏心的影响.
结论:
- 视网膜异常度是影响视觉选择行为的一个关键因素.
- 奇心度可以调节刺激突出度对眼睛运动控制的贡献.
- 这些发现突出了刺激驱动因素 (性,相关性) 和空间因素 (异心) 在引导视觉注意力的复杂相互作用.
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