The Cuing of Attention to Visual Field Locations: Analysis with ERP Recordings
The Cuing of Attention to Visual Field Locations: Analysis with ERP Recordings
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DOI：
10.1007/978-1-4612-0283-7_1
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
S. Hillyard;S. Luck;G. Mangun
中科院分区：
文献类型：
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作者：
S. Hillyard;S. Luck;G. Mangun
在不同类型的空间注意任务的执行过程中记录事件相关电位（ERPs），在这些任务中，预先提示引导被试注意到视野中的特定位置。在第一个实验中，比较了中枢和外周线索的影响。这两种线索类型产生了类似的有效性效应的大部分目标引起的ERP组件，但是，最早的ERP组件（P1）未能显示有效性效应下的周边线索。在第二个实验中，只采用中央线索，受试者试图检测微弱的亮度目标以下的有效线索，无效的线索，或中性线索，没有提供有关随后的目标的位置信息。在信号可检测性（d '）上观察到预处理的显著成本和收益，并且这些注意力效应与定位于外侧枕叶皮层的早期ERP分量（P1和N1）的幅度调制相关。这些结果提供了迄今为止最有力的证据，即视觉皮层中短潜伏期（80至200毫秒）活动的调制与感知处理的变化特别相关。
Event-related potentials (ERPs) were recorded during the performance of different types of spatial attention tasks in which an advance cue directed subjects to attend to a particular location in the visual field. In the first experiment, the effects of central and peripheral cues were compared. These two cue types produced similar validity effects for most of the target-elicited ERP components; however, the earliest ERP component (P1) failed to show a validity effect under peripheral cuing. In a second experiment employing only central cues, subjects attempted to detect faint luminance targets following valid cues, invalid cues, or neutral cues that provided no information about the location of the subsequent target. Significant costs and benefits of precuing were observed on signal detectability (d’), and these attention effects were associated with amplitude modulations of early ERP components (P1 and N1) that were localized over lateral occipital cortex. These results provide the strongest evidence to date that modulation of short-latency (80- to 200-msec) activity in the visual cortex is specifically associated with changes in perceptual processing.