Department of Psychology.
J Exp Psychol Hum Percept Perform. 2021 Jun;47(6):774-783. doi: 10.1037/xhp0000909. Epub 2021 Apr 12.
Spatial attention can be deployed exogenously, based on salient events in the environment, or endogenously, based on current task goals. Numerous studies have compared the time courses of these two types of attention, and have demonstrated that exogenous attention is fast and transient and endogenous attention is relatively slow but sustained. In the present study we investigated whether and how the temporal dynamics of exogenous and endogenous attention differ in terms of where attention is deployed in the visual field, in particular at locations nearby or far from fixation. Across a series of experiments, we measured attentional shift times for each type of attention, and found overall slower deployment of endogenous relative to exogenous attention, in line with previous research. Importantly, we also consistently found that it takes longer to deploy attention at more distant locations relative to nearby locations, regardless of how attention was instigated. Overall, our results suggest that the temporal limits of attentional deployment across different spatial distances are similar for exogenous and endogenous attention, pointing to shared constraints underlying both attentional modes. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
空间注意既可以基于环境中显著的事件（外源性注意）进行外源性部署，也可以基于当前的任务目标（内源性注意）进行内源性部署。许多研究比较了这两种类型的注意的时程，结果表明外源性注意速度快且短暂，而内源性注意则相对较慢但持续。在本研究中，我们调查了外源性和内源性注意在注视点附近或远处的视觉场中注意的分配位置上，其时间动态是否以及如何不同。在一系列实验中，我们测量了每种注意类型的注意力转移时间，结果发现内源性注意的总体部署速度比外源性注意慢，这与之前的研究一致。重要的是，我们还一致发现，相对于附近位置，无论注意力是如何引发的，注意力在更远的位置上的部署时间都更长。总体而言，我们的研究结果表明，外源性和内源性注意在不同空间距离上的注意力部署的时间限制相似，这表明这两种注意模式具有共同的约束条件。（PsycInfo 数据库记录（c）2021 APA，保留所有权利）。
