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Perception training

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7 papers 0 to 25 followers
https://www.readbyqxmd.com/read/18226828/crowding-an-essential-bottleneck-for-object-recognition-a-mini-review
#1
REVIEW
Dennis M Levi
Crowding, generally defined as the deleterious influence of nearby contours on visual discrimination, is ubiquitous in spatial vision. Crowding impairs the ability to recognize objects in clutter. It has been extensively studied over the last 80 years or so, and much of the renewed interest is the hope that studying crowding may lead to a better understanding of the processes involved in object recognition. Crowding also has important clinical implications for patients with macular degeneration, amblyopia and dyslexia...
February 2008: Vision Research
https://www.readbyqxmd.com/read/26114483/behavioral-training-as-new-treatment-for-adult-amblyopia-a-meta-analysis-and-systematic-review
#2
REVIEW
Inna Tsirlin, Linda Colpa, Herbert C Goltz, Agnes M F Wong
PURPOSE: New behavioral treatment methods, including dichoptic training, perceptual learning, and video gaming, have been proposed to improve visual function in adult amblyopia. Here, we conducted a meta-analysis of these methods to investigate the factors involved in amblyopia recovery and their clinical significance. METHODS: Mean and individual participant data meta-analyses were performed on 24 studies using the new behavioral methods in adults. Studies were identified using PubMed, Google Scholar, and published reviews...
June 2015: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/21981034/can-perceptual-learning-be-used-to-treat-amblyopia-beyond-the-critical-period-of-visual-development
#3
REVIEW
Andrew T Astle, Ben S Webb, Paul V McGraw
BACKGROUND: Amblyopia presents early in childhood and affects approximately 3% of western populations. The monocular visual acuity loss is conventionally treated during the 'critical periods' of visual development by occluding or penalising the fellow eye to encourage use of the amblyopic eye. Despite the measurable success of this approach in many children, substantial numbers of people still suffer with amblyopia later in life because either they were never diagnosed in childhood, did not respond to the original treatment, the amblyopia was only partially remediated, or their acuity loss returned after cessation of treatment...
November 2011: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/23036539/new-concepts-concerning-the-neural-mechanisms-of-amblyopia-and-their-clinical-implications
#4
REVIEW
Agnes M F Wong
Amblyopia is a visual impairment secondary to abnormal visual experience (e.g., strabismus, anisometropia, form deprivation) during early childhood that cannot be corrected immediately by glasses alone. It is the most common cause of monocular blindness globally. Patching remains the mainstay of treatment, but it is not always successful and there are also compliance and recurrence issues. Because amblyopia is a neural disorder that results from abnormal stimulation of the brain during the critical periods of visual development, it is essential to understand the neural mechanisms of amblyopia in order to devise better treatment strategies...
October 2012: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/23483507/internet-based-perceptual-learning-in-treating-amblyopia
#5
Wenqiu Zhang, Xubo Yang, Meng Liao, Ning Zhang, Longqian Liu
INTRODUCTION: Amblyopia is a common childhood condition, which affects 2%-3% of the population. The efficacy of conventional treatment in amblyopia seems not to be high and recently perceptual learning has been used for treating amblyopia. The aim of this study was to address the efficacy of Internet-based perceptual learning in treating amblyopia. METHODS: A total of 530 eyes of 341 patients with amblyopia presenting to the outpatient department of West China Hospital of Sichuan University between February 2011 and December 2011 were reviewed...
July 2013: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/25062751/improving-myopia-via-perceptual-learning-is-training-with-lateral-masking-the-only-or-the-most-efficacious-technique
#6
Rebecca Camilleri, Andrea Pavan, Filippo Ghin, Gianluca Campana
Perceptual learning produces an improvement in visual functions such as an increase in visual acuity (VA) and contrast sensitivity in participants with both amblyopia and refractive defects. This improvement has been observed in the presence of lateral masking, which is known to bring about lateral interactions between detectors in early cortical pathways. Improvement has also been revealed in the absence of flankers in healthy individuals and those with amblyopia. This study seeks to understand whether a perceptual training regime really needs to be based on lateral interactions in cases where poor vision is not due to cortical dysfunction, such as myopia...
November 2014: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/15096608/improving-vision-in-adult-amblyopia-by-perceptual-learning
#7
RANDOMIZED CONTROLLED TRIAL
Uri Polat, Tova Ma-Naim, Michael Belkin, Dov Sagi
Practicing certain visual tasks leads, as a result of a process termed "perceptual learning," to a significant improvement in performance. Learning is specific for basic stimulus features such as local orientation, retinal location, and eye of presentation, suggesting modification of neuronal processes at the primary visual cortex in adults. It is not known, however, whether such low-level learning affects higher-level visual tasks such as recognition. By systematic low-level training of an adult visual system malfunctioning as a result of abnormal development (leading to amblyopia) of the primary visual cortex during the "critical period," we show here that induction of low-level changes might yield significant perceptual benefits that transfer to higher visual tasks...
April 27, 2004: Proceedings of the National Academy of Sciences of the United States of America
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