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[几种光刺激条件下人类视皮层诱发电位的撤药效应]

[Off-effect in visual cortex evoked potentials of humans under several conditions of photic stimulation].

作者信息

Gavriĭski V

出版信息

Zh Vyssh Nerv Deiat Im I P Pavlova. 1977 May-Jun;27(3):553-60.

PMID:899259
Abstract

Visually evoked potentials (EP) to light were recorded from the occipital cortical area under conditions of changes in stimulus duration and of different intensity of retinal illumination. The work was aimed at establishing the appearance and development of the EP off-effect in humans at these conditions of photic stimulations. This was necessitated by the large dispersion of data obtained in establishing the conditions of photic stimulation, which many authors consider essential for recording the off-effect. The off-effect was studied in greater detail also to elucidate its role in EP generation to a high-frequency photic stimulation. The data recorded are discussed and compared with those of other authors, obtained in studying electrical responses of the retina and the cerebral cortex.

摘要

在刺激持续时间变化以及视网膜光照强度不同的条件下,从枕叶皮质区域记录对光的视觉诱发电位(EP)。这项工作旨在确定在这些光刺激条件下人类EP消退效应的出现和发展情况。在确定光刺激条件时获得的数据存在很大差异,许多作者认为这些条件对于记录消退效应至关重要,因此有必要进行此项研究。还对消退效应进行了更详细的研究,以阐明其在高频光刺激诱发EP过程中的作用。对记录的数据进行了讨论,并与其他作者在研究视网膜和大脑皮质电反应时获得的数据进行了比较。

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