Brain activity underlying visual perception and attention as inferred from TMS–EEG: A review
Brain activity underlying visual perception and attention as inferred from TMS–EEG: A review
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DOI：
10.1016/j.brs.2012.03.003
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发表时间：
2012-04
影响因子：
7.7
通讯作者：
P. Taylor;G. Thut
中科院分区：
文献类型：
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作者：
P. Taylor;G. Thut
通过大脑刺激探测大脑功能，同时记录大脑活动，可以解决认知神经科学中的主要问题。我们回顾了近年来脑电图（EEG）与经颅磁刺激（TMS）相结合的研究，以探讨视觉感知和注意力可能的神经元基质。TMS-EEG已被用于研究影响即将到来的知觉的刺激前脑活动模式，以及在产生注意和知觉的扩展视觉-注意网络中刺激诱发和任务相关的区域间相互作用。在监测脑电活动和感知的同时，直接刺激枕皮质来探测视觉区域的局部过程。注意网络内的相互作用已经通过同时刺激额叶或顶叶区域来探测。操作内隐和外显记忆的任务的使用还揭示了注意过程在记忆中的作用。综上所述，这些研究有助于揭示视觉选择依赖于视觉皮层在进入刺激之前自发的内在活动，它们受到注意力的控制，以及刺激后的过程，包括来自额叶和顶叶区域的重新进入偏见，这取决于任务。
Probing brain functions by brain stimulation while simultaneously recording brain activity allows addressing major issues in cognitive neuroscience. We review recent studies where electroencephalography (EEG) has been combined with transcranial magnetic stimulation (TMS) in order to investigate possible neuronal substrates of visual perception and attention. TMS–EEG has been used to study both pre-stimulus brain activity patterns that affect upcoming perception, and also the stimulus-evoked and task-related inter-regional interactions within the extended visual-attentional network from which attention and perception emerge. Local processes in visual areas have been probed by directly stimulating occipital cortex while monitoring EEG activity and perception. Interactions within the attention network have been probed by concurrently stimulating frontal or parietal areas. The use of tasks manipulating implicit and explicit memory has revealed in addition a role for attentional processes in memory. Taken together, these studies helped to reveal that visual selection relies on spontaneous intrinsic activity in visual cortex prior to the incoming stimulus, their control by attention, and post-stimulus processes incorporating a re-entrant bias from frontal and parietal areas that depends on the task.