LIFE-SPAN CHANGES IN VISUALLY EVOKED-POTENTIALS AT CENTRAL SCALP
LIFE-SPAN CHANGES IN VISUALLY EVOKED-POTENTIALS AT CENTRAL SCALP
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DOI：
10.1016/0197-4580(81)90039-7
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发表时间：
1981-01-01
影响因子：
4.2
通讯作者：
SNYDER, EW
中科院分区：
文献类型：
--
作者：
DUSTMAN, RE;SNYDER, EW
本文用三种强度的图形闪光诱发220例4-90岁健康男性头皮中央部的视觉诱发电位（VEP）。强度基于视觉阈值。儿童和老年人的VEP成分一般大于中间年龄的受试者，在闪光强度增加的反应，表现出更大的幅度增强。这种年龄变化的模式被认为反映了年轻人和老年人的皮层抑制能力下降，抑制能力在青少年晚期和成年早期达到最大。观察到半球不对称。右半球的VEP振幅比左半球的大，并表现出更大的振幅增强更明亮的闪光。
Three intensities of patterned flash were used to elicit visually evoked potentials (VEP) from central scalp of 220 healthy males aged 4-90 yr. Intensities were based on visual thresholds. VEP components from children and oldsters were generally larger than those of subjects of intermediate ages and, in response to increased flash intensity, demonstrated greater amplitude enhancements. This pattern of age changes is thought to reflect decreased cortical inhibition in the young and the old, with inhibitory capacity being maximal during late adolescent and early adult years. Hemispheric asymmetries were observed. VEP amplitudes from the right hemisphere were larger than those from the left and demonstrated a greater amplitude augmentation to brighter flashes.