在对低流行率目标的视觉搜索中进行位置概率学习
Emma C Holtz1, Vanessa G Lee2,3
1Department of Psychology, University of Minnesota, S506 Elliott Hall, 75 East River Road, Minneapolis, MN, 55455, USA. holtz257@umn.edu.
Attention, perception & psychophysics
|June 11, 2025
概括
人们错过了罕见的视觉搜索目标,一个低流行率效应 (LPE). 这项研究发现,虽然目标稀有性增加了失误率,但高概率位置减少了LPE,这表明流行率和空间概率的独立影响.
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
- 人类因素 人类因素
背景情况:
- 低发病率效应 (LPE) 描述了在视觉搜索中错过罕见目标的趋势.
- 之前的研究主要研究了LPE在具有均目标分布的情况.
- LPE与其他统计学习机制 (如空间概率) 之间的相互作用仍未得到充分研究.
研究的目的:
- 调查个人如何将视觉搜索目标的空间概率与其流行率相结合.
- 为了确定空间概率学习是否受到目标患病率的影响.
- 评估流行率和空间概率对搜索错误的影响.
主要方法:
- 进行了两项实验,参与者搜索了50% (高) 或10% (低) 患病率的目标.
- 目标在一个象限中的不成比例的空间分布允许学习空间概率.
- 在不同的流行和空间概率条件下,分析了参与者的搜索性能,包括错误率和概率学习.
主要成果:
- 参与者始终优先考虑高概率的空间位置,无论目标流行程度如何.
- 在低患病率培训期间,失误率较高.
- 在高概率的目标地点,LPE被减弱,这表明空间概率和流行率之间的相互作用.
- 概率学习在中性阶段的流行情况中是相当的,这表明短期重复或间隔学习的影响有限.
结论:
- 流行率和空间概率似乎对视觉搜索行为产生独立的影响.
- 低发病率效应可以在可预测的,高概率的位置减轻.
- 了解这些因素对于提高现实搜索任务的准确性至关重要,例如医疗查.
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