在二维搜索过程中,自上而下的指令会影响对颜色和形状维度的注意力重量
Zoe Jing Xu1, Alejandro Lleras2, Zixu Gavin Gong2
1Psychology Department, University of Illinois at Urbana Champaign, Champaign, United States. jingxu9@illinois.edu.
Scientific reports
|December 29, 2024
概括
上下命令改变了视觉搜索策略. 参与者根据特定的搜索目标动态调整颜色和形状特征之间的注意力权重,提高搜索效率.
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:
- 视觉搜索效率依赖于目标-分心器的独特性.
- 二维搜索涉及的目标不同于分心的颜色和形状.
- 之前的研究表明,在双重特征预期下,维度区别的协线组合.
研究的目的:
- 为了研究上下命令如何影响二维视觉搜索.
- 量化注意力权重转移对搜索性能的影响.
- 为了确定注意力集中在颜色或形状上是否改变特征组合策略.
主要方法:
- 利用单维搜索数据来预测二维搜索性能.
- 操纵的参与者指示专注于颜色,形状或两者.
- 在不同的注意力指导条件下测量搜索性能.
主要成果:
- 根据指令,搜索性能差异很大.
- 注意力重点转移到指令的特征 (颜色或形状).
- 参与者在搜索目标颜色时将更多的重量分配给颜色,反之亦然.
结论:
- 在二维视觉搜索中,自上而下的指令可以动态调节注意力权重.
- 注意焦点影响了多个特征的独特性如何引导注意力.
- 这项研究提供了一种新的方法来量化视觉搜索中的指令驱动的注意力转移.
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