Auditory evoked potentials during multichannel selective listening: role of pitch and localization cues.
Auditory evoked potentials during multichannel selective listening: role of pitch and localization cues.
复制标题
多通道选择性聆听过程中的听觉诱发电位：音高和定位线索的作用。
DOI：
10.1037//0096-1523.2.3.313
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发表时间：
1976
期刊：
影响因子：
--
通讯作者：
S. Hillyard
中科院分区：
文献类型：
--
作者：
V. L. Schwent;E. Snyder;S. Hillyard
听觉诱发电位记录从受试者有选择地听取音调到达三个输入通道之一。他们的任务是检测持续时间稍长的偶尔目标音。在不同的运行中，这三个通道通过（a）单独的音高线索（800、1，800和2，800 Hz），（B）单独的定位线索（右耳、中线和左耳），以及（c）这两种线索的联合来彼此区分。在所有这三种条件下，注意力的方向反映在诱发电位的N1波的振幅，这是有选择地增强到音调在出席通道;音调在中央通道中的单线索条件下，但是，产生最少的N1不稳定性和最少的可辨别性。N1波被解释为选择性注意的初始刺激集或过滤模式的标志，而随后的P3波与目标刺激的检测具体相关。
Auditory evoked potentials were recorded from subjects who listened selectively to tone pips arriving over one of three input channels. Their task was to detect occasional target tones of a slightly longer duration. In different runs the three channels were distinguished from one another by (a) pitch cues alone (800, 1,800, and 2,800 Hz), (b) localization cues alone (right ear, midline, ane left ear), and (c) both of these cues conjointly. In all three conditions the direction of attention was reflected in the amplitude of the N1 wave of the evoked potential, which was selectively enhanced to tones in the attended channel; tones in the central channels in the single-cue conditions, however, produced the least N1 lability and were the least discriminable. The N1 wave was interpreted as a sign of an initial stimulus set or filtering mode of selective attention, whereas a subsequent P3 wave was specifically associated with detections of the target stimuli.