Braithwaite Jason J, Humphreys Glyn W, Hulleman Johan
Behavioural Brain Sciences Centre, School of Psychology, University of Birmingham, Edgbaston, Birmingham B15 2TT, England.
Percept Psychophys. 2005 Jan;67(1):81-101. doi: 10.3758/bf03195014.
In four experiments, we examined selection processes in visual search using a probe detection task to measure the allocation of attention. Under preview search conditions, probes were harder to detect on old relative to new distractors (Experiment 1). This cannot be attributed solely to low-level sensory factors (Experiment 2). In addition, probe detection was sensitive to color-based grouping of old distractors and to color similarity between old distractors (Experiments 3 and 4). These effects were dissociated when the color of the old distractors changed but probe detection effects remained. Collectively, the data indicate both group-based suppression of distractors and the separate inhibition of distractor features in search.
在四项实验中，我们使用探测检测任务来测量注意力分配，以此检验视觉搜索中的选择过程。在预搜索条件下，相对于新的干扰项，探测物在旧干扰项上更难被检测到（实验1）。这不能仅仅归因于低水平的感觉因素（实验2）。此外，探测检测对旧干扰项基于颜色的分组以及旧干扰项之间的颜色相似性敏感（实验3和4）。当旧干扰项的颜色发生变化但探测检测效果仍然存在时，这些效应被区分开来。总体而言，数据表明在搜索中存在基于组的干扰项抑制以及干扰项特征的单独抑制。
