Top-down control over involuntary attention switching in the auditory modality
Top-down control over involuntary attention switching in the auditory modality
复制标题
DOI：
10.3758/bf03196525
复制
发表时间：
2003-09-01
影响因子：
3.5
通讯作者：
Schröger, E
中科院分区：
文献类型：
--
作者：
Sussman, E;Winkler, I;Schröger, E
我们测试了可预测性对非自愿注意力切换到与任务无关的声音变化（分心）的影响。行为和神经生理学的证据，表明任务无关的声音变化的可预测性消除了分心的影响，即使自动听觉变化检测系统仍然响应。两个指标的分心，较慢的任务性能和大脑皮层的反应与注意力转换，只看到在不可预测的条件下，其中不相关的声音变化是意想不到的。当受试者预见到不相关的变化何时会发生时，注意力不会不由自主地从主要任务上移开。这些结果表明，注意力控制定向到声音的变化，并表明，非自愿注意转换主要发生在一个不相关的刺激变化是意想不到的。目前的数据允许观察的时间动态的注意转换在人脑中
We tested the effects of predictability on involuntary attention switching to task-irrelevant sound changes (distraction). Behavioral and neurophysiological evidence are provided, showing that the predictability of task-irrelevant sound changes eliminates effects of distraction even though the automatic auditory change detection system remains responsive. Two indices of distraction, slower task performance and cortical brain responses associated with attention switching, were seen only in the unpredictable condition, in which the irrelevant acoustic changes were unexpected. Attention was not involuntarily drawn away from the primary task when the subjects had foreknowledge of when the irrelevant changes would occur. These results demonstrate attentional control over orienting to sound changes and suggest that involuntary attention switching occurs mainly when an irrelevant stimulus change is unexpected. The present data allowed observation of the temporal dynamics of attention switching in the human brain