Hillyard S A, Teder-Sälejärvi W A, Münte T F
Department of Neurosciences, University of California at San Diego, La Jolla 92093-0608, USA.
Curr Opin Neurobiol. 1998 Apr;8(2):202-10. doi: 10.1016/s0959-4388(98)80141-4.
Recordings of electrical and magnetic brain responses to sensory stimulation provide high-resolution measures of the time course of early perceptual processing. Spatio-temporal analyses of brain activity patterns during the first 200 ms after stimulus presentation have characterized the timing of attentional selection processes and different stages of feature encoding and pattern analyses. Recent studies that incorporate blood flow neuroimaging techniques provide support for mechanisms of early selection of attended visual inputs in extrastriate cortical pathways. The spatial tuning properties of early auditory selection have also been delineated. Electrical and magnetic responses that index the encoding of higher-order pattern information have been identified in both visual and auditory modalities and localized to specific cortical areas.
对感觉刺激的脑电和脑磁反应记录提供了早期知觉加工时间进程的高分辨率测量。刺激呈现后最初200毫秒内脑活动模式的时空分析已经明确了注意选择过程的时间以及特征编码和模式分析的不同阶段。最近纳入血流神经成像技术的研究为视外皮层通路中被注意视觉输入的早期选择机制提供了支持。早期听觉选择的空间调谐特性也已被描绘出来。在视觉和听觉两种模式中都已识别出指示高阶模式信息编码的电反应和磁反应，并将其定位到特定的皮层区域。
