AGING AND PATTERN VISUAL-EVOKED POTENTIALS

被引：24
|
作者：
TOBIMATSU, S
机构：
[1] Department of Clinical Neurophysiology, Neurological Institute, Kyushu University
来源：
OPTOMETRY AND VISION SCIENCE | 1995年 / 72卷 / 03期
关键词：
AGING; PATTERN VEPS; VISION PHYSIOLOGY; VISUAL CHANNELS;
D O I：
10.1097/00006324-199503000-00007
中图分类号：
R77 [眼科学];
学科分类号：
100212 ;
摘要：
Visual abilities decline during senescence. Age-related declines cannot be attributed entirely to changes in optical factors (senile miosis and opacification of the ocular media) and must therefore be caused by changes in the visual pathways. Because pattern visual evoked potentials (VEPs) provide information regarding the sensory function and integrity of the visual system, recent research on age-related changes in VEPs is reviewed. The results of this review show that stimulus parameters of VEPs (luminance, contrast, spatial and temporal frequencies) modify the age-related changes in VEPs. The visual system consists of multiple, parallel channels which process different information. Therefore, it is hypothesized that aging may affect the specific functional subdivisions in the visual pathways differentially.
引用
收藏
页码：192 / 197
页数：6
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