研究31只正常眼视野中央8.6度的多焦(多刺激野)视诱发电位(multifocal visual evoked potential, MVEP)在视野各部位的特征.观察到平均反应密度随离心度增加而减少,并且在下半视野比在上半视野相应部位高;在上半视野,MVEP波形的极性反转发生率较高.MVEP在视野中的改变反映了视网膜和大脑视皮层解剖特征及其拓扑投射关系.
Multifocal visual evoked potentials (MVEP) across the central visual field of 8.6 degrees of arc were tested in 31 normal eyes. It was observed that the mean response densities of the MVEP reduced with the increasing eccentricity; and were higher in the lower hemifield than those in the corresponding mirror symmetric locations in the upper hemifield. The incidence of polarity reversal was higher in the upper hemifield. The variation of the MVEPs across the visual field reflects the underlying anatomy of the retina and the visual cortex.
余敏忠.正常人眼的多焦视诱发电位特征[J].生物化学与生物物理进展,2000,27(1):71-74
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