Schröger E
Institute of Psychology, University of Munich, FRG.
Neurosci Lett. 1994 May 23;173(1-2):163-6. doi: 10.1016/0304-3940(94)90174-0.
Event-related brain potentials (ERPs) were recorded in human subjects receiving tones. Each tone was preceded by a visual cue indicating a to-be-attended feature. In one part of the experiment, subjects had to attend to tones of the indicated frequency, whereas they had to attend to tones delivered at the designated ear in the other part. ERPs to attended tones showed enhanced frontal negativities as compared with ERPs to unattended tones. Additionally, in the location selection condition, a negative difference (Nd) between attended and unattended EPRs occurred between 100 and 200 ms at parietal areas. This parietal Nd seems to be characteristic for transient spatial attention.
在接受音调刺激的人类受试者中记录了事件相关脑电位（ERP）。每个音调之前都有一个视觉提示，指示一个要注意的特征。在实验的一部分中，受试者必须注意指定频率的音调，而在另一部分中，他们必须注意在指定耳朵传递的音调。与未注意到的音调的ERP相比，注意到的音调的ERP显示出增强的额叶负波。此外，在位置选择条件下，在顶叶区域，注意到的和未注意到的ERP之间在100到200毫秒之间出现了负差异（Nd）。这种顶叶Nd似乎是瞬态空间注意的特征。
