Exogenous and endogenous shifts of attention in perihand space
Exogenous and endogenous shifts of attention in perihand space
复制标题
DOI：
10.1007/s00426-015-0680-y
复制
发表时间：
2016-07-01
影响因子：
2.3
通讯作者：
Grosjean, Marc
中科院分区：
文献类型：
--
作者：
Le Bigot, Nathalie;Grosjean, Marc
虽然一些研究发现，注意力定向在近手空间发生了改变，但大多数研究都没有发现。这种差异的一个原因可能与所使用的线索类型（非信息性和信息性）有关，因为已知它们会引起不同类型的注意力转移（分别为外源性和内源性）。为了系统地解决这个问题，进行了两个实验，其中无信息的外周线索（实验1）或信息的中央线索（实验2）之前的外周目标与短（100-150毫秒）的刺激开始的时间。参与者用他们的左手、右手、双手或没有手靠近显示器来执行任务。在这两个实验中得到的提示效果，但它们只调制手的位置在实验1中，观察到的右手和双手的条件下，具有较大的影响。这些发现表明，外源性的注意转移的手接近的影响，而内源性转移没有。
While some studies have found that attentional orienting is altered in perihand space, most have not. One reason for such discrepancies may be related to the types of cues (uninformative and informative) that have been used, as they are known to induce different types of shifts of attention (exogenous and endogenous, respectively). To systematically address this question, two experiments were performed in which an uninformative peripheral cue (Experiment 1) or an informative central cue (Experiment 2) preceded a peripheral target with a short (100-150 ms) stimulus-onset asynchrony. Participants performed the task with their left hand, right hand, both hands, or no hands near the display. Cueing effects were obtained in both experiments, but they were only modulated by hand position in Experiment 1, with larger effects observed in the right- and both-hand conditions. These findings suggest that exogenous attention shifts are affected by hand proximity, while endogenous shifts are not.