Event-related brain potentials in the study of visual selective attention
Event-related brain potentials in the study of visual selective attention
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DOI：
10.1073/pnas.95.3.781
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发表时间：
1998-02-03
影响因子：
11.1
通讯作者：
Anllo-Vento, L
中科院分区：
文献类型：
--
作者：
Hillyard, SA;Anllo-Vento, L
事件相关脑电位（ERP）提供了与知觉和认知过程相关的神经元活动模式的时间过程的高分辨率测量，ERP源分析和与血流神经成像研究数据的比较的新技术能够改善视觉选择性注意期间皮层活动的定位，空间注意期间的ERP调制指向一种对纹状体视觉皮层通路中的信息流进行控制的机制，开始 刺激开始后约 80 毫秒，对颜色、运动或形状等非空间特征的关注表现为多个皮质区域中质量不同的 ERP 模式，这些区域从 100-150 毫秒的潜伏期开始。非空间特征的处理似乎取决于先前的位置选择，与早期的注意选择理论和空间注意是“特殊”的假设一致。
Event-related brain potentials (ERPs) provide high-resolution measures of the time course of neuronal activity patterns associated with perceptual and cognitive processes, New techniques for ERP source analysis and comparisons with data from blood-flow neuroimaging studies enable improved localization of cortical activity during visual selective attention, ERP modulations during spatial attention point toward a mechanism of gain control over information flow in extrastriate visual cortical pathways, starting about 80 ms after stimulus onset, Paying attention to nonspatial features such as color, motion, or shape is manifested by qualitatively different ERP patterns in multiple cortical areas that begin with latencies of 100-150 ms, The processing of nonspatial features seems to be contingent upon the prior selection of location, consistent with early selection theories of attention and with the hypothesis that spatial attention is "special".