首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Visual function declines during normal aging
【24h】

Visual function declines during normal aging

机译:正常衰老过程中视功能下降

获取原文
获取原文并翻译 | 示例
           

摘要

Visual functions deteriorate gradually during the normal aging process, including the decrease of visual acuity and contrast sensitivity to visual signals, impairments in orientation discrimination and motion direction detection abilities, as well asa reduction of binocular summation, information processing, wavelength sensitivity and visual field sensitivity. Some impairments of visual functions in the aged may result from optical media abnormity, while others may be chiefly attributed to age-dependent neuronal morphological modifications and/or a neurotransmitter system imbalance in the visual processing pathway, especially in the primary visual cortex or even the higher cortical loci. This review will focus on recent findings regarding alterations of visual functions during the normal aging process and the possible neural mechanisms underlying these changes.
机译:在正常的衰老过程中,视觉功能逐渐恶化,包括视敏度和对视觉信号的对比敏感度降低,方向辨别力和运动方向检测能力下降,以及双目求和,信息处理,波长敏感度和视野敏感度下降。老年人视觉功能的某些损害可能是由于光学介质异常引起的,而另一些则可能主要归因于视神经加工过程中,尤其是在原发性视皮质或什至是视神经皮质中,年龄相关的神经元形态学改变和/或神经递质系统失衡。皮质位点较高。这篇综述将集中在有关正常衰老过程中视觉功能改变以及这些改变潜在的神经机制方面的最新发现。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号