多个视觉项目可以同时与内存中的目标模板进行比较
Yujie Zheng1, Jiafei Lou1, Yunrong Lu2,3
1Department of Psychology and Behavioral Sciences, Zhejiang University, 148 Tian Mu Shan Road, Hangzhou, 310007, People's Republic of China.
Attention, perception & psychophysics
|June 5, 2024
概括
人类的视觉搜索包括选择,识别和比较项目. 这项研究发现,多个已识别的项目可以同时与内存目标进行比较,而不是一个接一个.
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
- 人类的记忆 人类的记忆
背景情况:
- 视觉搜索依赖于选择,识别和比较视觉刺激与记忆表示.
- 之前的模型建议在搜索过程中对视觉项目的顺序处理.
研究的目的:
- 调查视觉搜索中的项目比较是否是一个串行或并行过程.
- 为了确定是否所有识别的项目必须在处理下一个项目之前与内存目标进行比较.
主要方法:
- 实验1:在快速串行视觉演示流中测量了对一个与两个目标的搜索效率,以建立基线.
- 实验2:在一个视觉搜索数组中对一个与两个目标的设置大小进行评估反应时间 (RT).
- 实验3:进一步调查了影响观察到效应的潜在内存负载成本.
主要成果:
- 在搜索一个与两个目标时,发现了192毫秒与89毫秒的基线值差异.
- 在搜索一个与两个目标时,RT × Set Size函数的斜率差异仅为13 ms/item.
- 这种最小的斜率差异表明可以平行比较多个已识别的项目.
结论:
- 这些发现表明,在视觉搜索过程中,可以并行比较多个已识别的项目与内存模板.
- 这挑战了顺序处理模型,并支持一种更平行的视觉搜索和内存比较方法.
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