[电视及移动镜刺激中的图形翻转视觉诱发电位：方法学比较]

[Pattern reversal VEP in TV and moving-mirror stimulation: a methodological comparison].

作者信息

Lowitzsch K, Flickinger U, Kempkes K, Mandery G

出版信息

EEG EMG Z Elektroenzephalogr Elektromyogr Verwandte Geb. 1983 Mar;14(1):43-6.

Abstract

Pattern-Reversal visual evoked potentials (VEP) were elicited in 10 controls by optomechanical and TV-reversal. TV-stimulation was done in the frame-locked and -unlocked mode. Comparing P2-latencies evoked by different stimulation fields of the screen delays up to 30 ms and increased standard deviations could be observed in the TV-stimulation modes. Moreover, stimulating with small checks a diminution of amplitudes and a simplification of the shape was seen in contrary to the mirror method.

摘要

通过光机械和电视反转刺激，在10名对照者中引出了模式反转视觉诱发电位（VEP）。电视刺激以帧锁定和非锁定模式进行。比较屏幕不同刺激区域诱发的P2潜伏期，在电视刺激模式下可观察到长达30毫秒的延迟以及标准差增加。此外，与镜像法相反，用小方格刺激时可看到振幅减小和波形简化。

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