基于语境的指导与语境抑制在语境学习中:在视觉搜索中的目标语境关系中的不确定性/不确定性的作用
Siyi Chen1, Fredrik Allenmark1, Nika Merkuš1
1Department Psychologie, Ludwig-Maximilians-Universitat Munchen.
概括
语境便利化有助于视觉搜索,但只有完全预测性的语境才能有效地引导注意力. 部分预测语境显示了减少的便利性,这表明搜索策略效率较低.
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
- 注意力研究研究研究研究
背景情况:
- 标准的上下文促进研究使用固定分心装置.
- 现实世界的背景往往有不确定的目标位置.
- 调查预测不确定性如何影响上下文促进至关重要.
研究的目的:
- 检查目标位置预测不确定性对上下文便利性的影响.
- 为了比较不同层次的背景可预测性 (100%,80%,20%,3%).
- 确定情境线索有效引导注意力的条件.
主要方法:
- 实验将视觉搜索性能与具有不同预测能力的旧环境进行了比较 (100%对比3%,80%对比20%).
- 还测试了一种混合条件 (80%固定,20%随机).
- 新上下文显示作为基线.
主要成果:
- 完全 (100%) 和最小 (3%) 预测语境加速了搜索,对完全预测语境有更大的便利性.
- 即使在混合预测能力 (80:20比率) 的情况下,促进仍然存在.
- 80%的预测语境产生了类似于最小预测语境的便利性,这表明搜索效率较低.
结论:
- 只有完全预测的背景,才能获得引导注意力的线索.
- 部分预测语境的便利化可能涉及不那么有效的语境抑制机制.
- 这些发现为神经网络模型提供了注意力中的上下文效应的信息.
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