在任务准备和目标选择过程中,多模板视觉搜索的容量限制
Anna Grubert1, Ziyi Wang1, Ella Williams2
1Department of Psychology, Durham University, Durham, UK.
Psychophysiology
|November 4, 2024
概括
大脑可以同时容纳至少三个视觉搜索模板. 然而,使用多个模板进行搜索会导致性能成本,原因是活跃的注意力模板之间的抑制性相互作用.
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:
- 视觉搜索依赖于注意力模板的预备激活.
- 同时注意力模板的容量和相关成本尚未得到充分理解.
研究的目的:
- 在视觉搜索期间调查同时维护的注意力模板的数量.
- 检查与多模板与单模板视觉搜索相关的性能成本.
主要方法:
- 比较三色和单色搜索任务.
- 使用与任务无关的彩色探测器测量与事件相关的潜力 (N2pc组件) 来跟踪模板激活.
- 分析了注意力指导和搜索性能.
主要成果:
- 在可预测的三色搜索中,只有一个模板是活跃的.
- 在不可预测的三色搜索中,所有三个模板都同时活跃.
- 多模板搜索显示了与模板抑制相关的注意力指导和性能成本.
结论:
- 至少有三个注意力模板可以并行维护.
- 多模板搜索受容量限制,影响注意力指导和目标选择.
- 活跃模板之间的抑制性相互作用有助于搜索成本.
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