Perceptual learning improves neural processing in myopic vision

	Perceptual learning improves neural processing in myopic vision
	Yan, Fang-Fang 1,2; Zhou, Jiawei 1,3; Zhao, Wuxiao 4; Li, Min 5; Xi, Jie1 ; Lu, Zhong-Lin 6; Huang, Chang-Bing1
摘要	Visual performance is jointly determined by the quality of optical transmission of the eye and neural processing in the visual system. An open question is: Can effects of optical defects be compensated by perceptual learning in neural processing? To address this question, we conducted a perceptual learning study on 23 observers with myopic vision, targeting high frequency deficits by training them in a monocular grating detection task in the non-dominant eye near their individual cutoff spatial frequencies. The contrast sensitivity function and visual acuity in both eyes (without optical correction) were assessed for all the observers in the training group before and after training, and for all the observers in the control group twice with a 10-day interval between the tests. In addition, the threshold versus external noise contrast function was measured for five observers in the training group before and after training. We found that (a) training significantly improved contrast sensitivity at the trained spatial frequency, visual acuity, and contrast sensitivity over a wide range of spatial frequencies in both eyes; (b) training did not lead to any significant refractive changes; (c) the mechanism of improvements was a combination of internal additive noise reduction and external noise exclusion; and (d) the improvements in visual acuity and contrast sensitivity were almost fully retained for at least four months in the three observers tested. These results suggest that perceptual learning may provide a potential noninvasive procedure to compensate for optical defects in mild to modest myopia.
关键词	myopia perceptual learning contrast sensitivity function perceptual template model external noise method
	2015
语种	英语
发表期刊	JOURNAL OF VISION
ISSN	1534-7362
卷号	15 期号:10 页码:12：1-14
期刊论文类型	Article
收录类别	SCI
WOS记录号	WOS:000365204300012
引用统计	被引频次：27[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.psych.ac.cn/handle/311026/15341
专题	中国科学院行为科学重点实验室
作者单位	1.Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.McGill Univ, Dept Ophthalmol, McGill Vis Res, Montreal, PQ H3A 2T5, Canada 4.Peoples Hosp Guangxi Zhuang Autonomous Reg, Dept Optometry, Ctr Optometry & Visual Sci, Nanning, Peoples R China 5.Peoples Hosp Guangxi Zhuang Autonomous Reg, Dept Ophthalmol, Nanning, Peoples R China 6.Ohio State Univ, Dept Psychol, Ctr Cognit & Behav Brain Imaging, Lab Brain Proc LOBES,Ctr Cognit & Brain Sci, Columbus, OH 43210 USA
第一作者单位	中国科学院行为科学重点实验室
推荐引用方式 GB/T 7714	Yan, Fang-Fang,Zhou, Jiawei,Zhao, Wuxiao,et al. Perceptual learning improves neural processing in myopic vision[J]. JOURNAL OF VISION,2015,15(10):12：1-14.
APA	Yan, Fang-Fang.,Zhou, Jiawei.,Zhao, Wuxiao.,Li, Min.,Xi, Jie.,...&Huang, Chang-Bing.(2015).Perceptual learning improves neural processing in myopic vision.JOURNAL OF VISION,15(10),12：1-14.
MLA	Yan, Fang-Fang,et al."Perceptual learning improves neural processing in myopic vision".JOURNAL OF VISION 15.10(2015):12：1-14.

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