预期的分心环境会偏向对目标形状的注意力模板
Maëlle Lerebourg1, Floris P de Lange1, Marius V Peelen1
1Donders Institute for Brain, Cognition and Behaviour, Radboud University.
概括
关于分散注意力的期望塑造了视觉搜索模板,通过强调相关的目标特征来提高性能. 这种注意力模板可以灵活地根据分心的背景进行调整,即使没有意识意识.
科学领域:
- 认知心理学 认知心理学
- 视觉感知 视觉感知 视觉感知
- 关注科学科学 关注科学
背景情况:
- 视觉搜索依赖于注意力模板,内部表示指导目标检测.
- 在注意力模板中强调的特征受到分心特征的影响.
- 以前的研究表明,一致的分心语境塑造了简单目标的注意力模板.
研究的目的:
- 为了调查分心的期望如何偏向复杂形状的注意力模板.
- 为了确定这些偏差是由于试验间初始化或灵活适应而产生的.
- 为了测试注意力模板的适应性,以应对概率分心语境.
主要方法:
- 参与者在概率分心条件下进行了对新型形状的视觉搜索 (80%的有效性是目标在方向或直线性方面的独特性).
- 四个实验操纵了分心因子的上下文可预测性 (被阻止与逐试试验).
- 测量了表现和注意力模板偏差,并评估了主观意识.
主要成果:
- 当预计会出现分心语境时,搜索性能会有所改善,这表明重点放在诊断特征上.
- 注意力模板被阻断的背景中的分心者期望所偏向,即使没有意识.
- 对分心语境的逐个试验暗示也导致了模板的偏见,特别是在空间上不同时.
结论:
- 注意力模板适应性地结合了对目标-干扰器关系的期望.
- 这种灵活性允许在不同的环境中进行高效的视觉搜索.
- 这些发现突出了注意力引导在感知中的动态和上下文依赖性.
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