预测和感知负载对基于类别的注意力导向在颜色和形状维度上的影响和时间过程
Yunpeng Jiang1,2,3, Tianyu Chen1, Fangyuan Ou1
1Faculty of Psychology, Tianjin Normal University, Tianjin 300387, China.
Brain sciences
|November 27, 2025
概括
基于类别的注意力定向 (CAO) 受预测和感知负载的不同影响. 基于形状的注意力更多地依赖于早期的预测,而组合效应则在视觉处理中稍后出现.
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
- 注意力研究研究研究研究
背景情况:
- 注意力定向指导视觉处理.
- 上向下 (预测) 和下向上 (感知负载) 的因素影响注意力.
- 了解它们的相互作用对于认知模型至关重要.
研究的目的:
- 调查基于类别的注意力定向 (CAO) 的时间动态.
- 检查色彩和形状对预测和感知负载的影响.
- 结合行为和事件相关潜力 (ERP) 措施.
主要方法:
- 两个实验操纵了预测有效性和感知负载.
- 视觉搜索任务使用了类别定义的目标.
- 测量行为准确性和与事件相关的潜力 (ERP),包括N2pc.
主要成果:
- 预测具有特定维度的影响:无效预测对形状定义的目标的影响更大 (N2pc更大).
- 基于形状的CAO显示了早期对预测信息的依赖.
- 行为准确性揭示了预测和负载之间的相互作用,暗示了以后的整合.
结论:
- 预测和感知负载在调节注意力定向方面具有不同的时间概况.
- 早期的注意力选择在很大程度上是由这些因素独立调节的.
- 互动对行为的影响是微妙的,取决于刺激的维度 (颜色与形状).
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