Schwark Jeremy, Dolgov Igor
Department of Psychology, New Mexico State University, PO Box 30001/MSC 3452, Las Cruces, NM 88003, USA.
Perception. 2013;42(4):470-2. doi: 10.1068/p7469.
Certain aspects of a visual search task, such as the location where a target often appears, are learned over time and can serve as a source of attentional guidance. An example ofthis implicit learning, spatial probability cuing speeds detection of targets that appear in probable locations. The current study investigated target feature probability learning and its relation to implicit spatial probability learning. Results reveal that individuals are sensitive to small changes in the spatial probability of targets, even incidentally learning moderate probabilities. However, feature-based probability differences impacted visual search times much less. Implications for these findings are discussed.
视觉搜索任务的某些方面，比如目标经常出现的位置，会随着时间推移而被习得，并可作为注意力引导的一个来源。这种内隐学习的一个例子是，空间概率提示能够加快对出现在可能位置的目标的检测。当前的研究调查了目标特征概率学习及其与内隐空间概率学习的关系。结果显示，个体对目标空间概率的微小变化很敏感，甚至能偶然习得中等概率。然而，基于特征的概率差异对视觉搜索时间的影响要小得多。文中讨论了这些发现的意义。
