Mobile EEG identifies the reallocation of attention during real-world activity
Mobile EEG identifies the reallocation of attention during real-world activity
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DOI：
10.1038/s41598-019-51996-y
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发表时间：
2019-11-01
影响因子：
4.6
通讯作者：
Ietswaart, Magdalena
中科院分区：
文献类型：
--
作者：
Ladouce, Simon;Donaldson, David, I;Ietswaart, Magdalena
竞争处理需求之间的注意力分配可能会产生戏剧性的现实世界的后果，但很少有人知道有限的注意力资源是如何分配在现实世界的行为。在这里，我们采用移动的EEG来描述自然运动过程中多个感官认知处理需求之间的注意分配。我们使用了注意力的神经标记，事件相关电位（ERP）P300效应，以表明当人类参与者行走时，与他们站着不动时相比，对目标的注意力会减少。在第二个实验中，我们发现这种注意力的减少并不是由行走本身引起的。第三个实验确定了独立的处理需求，在运动过程中减少对目标刺激的注意力。ERP数据显示，行走过程中注意力的减少反映了视觉和惯性刺激产生的处理需求的线性和加性总和。这里使用的移动的认知方法显示了有限的资源是如何根据现实世界行为中发生的感觉处理需求进行精确重新分配的。
The distribution of attention between competing processing demands can have dramatic real-world consequences, however little is known about how limited attentional resources are distributed during real-world behaviour. Here we employ mobile EEG to characterise the allocation of attention across multiple sensory-cognitive processing demands during naturalistic movement. We used a neural marker of attention, the Event-Related Potential (ERP) P300 effect, to show that attention to targets is reduced when human participants walk compared to when they stand still. In a second experiment, we show that this reduction in attention is not caused by the act of walking per se. A third experiment identified the independent processing demands driving reduced attention to target stimuli during motion. ERP data reveals that the reduction in attention seen during walking reflects the linear and additive sum of the processing demands produced by visual and inertial stimulation. The mobile cognition approach used here shows how limited resources are precisely re-allocated according to the sensory processing demands that occur during real-world behaviour.