Yashar Amit, Lamy Dominique
Department of Psychology, Tel Aviv University, Ramat Aviv, Israel.
J Vis. 2010 Dec 3;10(14):3. doi: 10.1167/10.14.3.
Implicit short-term memory plays an important role in visual search. For instance, singleton search is faster when the target and distractor features repeat on two consecutive trials than when they switch, an effect called Priming of Popout (PoP). However, whether or not PoP facilitates early perceptual/attentional processes remains controversial. To resolve discrepancies between existing findings, we tested the hypothesis that early effects of PoP occur only if attention is focused/engaged on the target. We measured search accuracy using brief displays for a fine discrimination task, which required focused attention, and for a left/right hemifield localization task, which did not. We found that PoP effects on accuracy occur only in the discrimination task. The theoretical implications are discussed.
内隐短期记忆在视觉搜索中起着重要作用。例如，当目标和干扰项特征在连续两次试验中重复时，单一特征搜索比它们切换时更快，这种效应称为弹出式启动（PoP）。然而，PoP是否促进早期感知/注意过程仍存在争议。为了解决现有研究结果之间的差异，我们测试了这样一个假设，即只有当注意力集中在目标上时，PoP的早期效应才会出现。我们使用简短显示来测量搜索准确性，用于需要集中注意力的精细辨别任务，以及不需要集中注意力的左右半视野定位任务。我们发现，PoP对准确性的影响仅出现在辨别任务中。本文讨论了其理论意义。
