Schröger E, Eimer M
Institute of Psychology, University of Munich, Germany.
Neuroreport. 1993 May;4(5):588-90. doi: 10.1097/00001756-199305000-00033.
Event-related potentials (ERPs) were recorded in subjects receiving left- and right-ear tones while they shifted attention to the left or right on a trial-by-trial basis. ERPs at attended compared with unattended tones revealed an enhanced negativity consisting of an early part that was parietally distributed and a later part with a frontocentral distribution. It may be concluded that these ERP modulations reflect the selection of auditory stimuli according to spatial criteria within a transient spatial attention situation. Furthermore, the attention-related negativity was not reduced for long inter-stimulus intervals (10 s) suggesting that prior stimulus exposure is not a basic requirement for eliciting attention-related negativity in the auditory modality.
在受试者接收左耳和右耳音调时记录事件相关电位（ERP），同时他们在逐个试验的基础上向左或向右转移注意力。与未注意的音调相比，注意到的音调的ERP显示出增强的负波，其由顶叶分布的早期部分和额中央分布的后期部分组成。可以得出结论，这些ERP调制反映了在短暂空间注意情况下根据空间标准对听觉刺激的选择。此外，对于长刺激间隔（10秒），与注意相关的负波并未减少，这表明先前的刺激暴露不是在听觉模态中引发与注意相关的负波的基本要求。
