Monocular and Binocular Temporal Visual Perception of Infantile Nystagmus

Author:

Moshkovitz Avital,Lev Maria,Polat UriORCID

Abstract

AbstractContrast sensitivity is mostly used as a tool for testing aspects of visual functions. Infantile nystagmus is a pathological phenomenon that affects the spatial-temporal visual functions due to spontaneous oscillating movements of the eyes. We examined the spatial-temporal aspects of nystagmus perception, aiming to investigate the mechanisms underlying the deterioration of their visual performance. We tested the monocular and binocular contrast sensitivity of nystagmus and normally sighted subjects by measuring contrast detection of a Gabor target with spatial frequencies slightly above the cutoff threshold of each subject (nystagmus ~3; controls = 9cpd; presentation times 60–480 ms). The dominant eye of nystagmus revealed large differences over the non-dominant eye, highlighting the superiority of the dominant over the non-dominant eye in nystagmus. In addition, binocular summation mechanism was impaired in majority of the nystagmus subjects. Furthermore, these differences are not attributed to differences in visual acuity. Moreover, the visual performance in nystagmus continue to improve for longer presentation time compared with controls and was longer in the poor eye. Since the results are not due to differences in eye movements and strabismus, we suggest that the differences are due to developmental impairment in the visual system during the critical period.

Funder

Israel Science Foundation

Israeli Science Foundation

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

Reference96 articles.

1. Leat, S. J., Yadav, N. K. & Irving, E. L. Development of Visual Acuity and Contrast Sensitivity in Children. J. Optom. 2, 19–26 (2009).

2. Neri, P. & Levi, D. M. Spatial Resolution for Feature Binding Is Impaired in Peripheral and Amblyopic Vision. J Neuro-physiol 96, 142–153 (2006).

3. Owsley, C., Sekuler, R. & Siemsen, D. Contrast Sensitivity Throughout Adulthood. Vision Res. 23, 689–699 (1983).

4. Birren, J. E. & Fisher, L. M. Aging and Slowing of Behavior: Consequences for Cognition and Survival. Nebr. Symp. Motiv. 39, 1–37 (1991).

5. Birren, J. E. & Fisher, L. M. Aging and Speed of Behavior: Possible Consequences for Psychological Functioning. Annu. Rev. Psychol. 46, 329–353 (1995).

Cited by 4 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3