ERIC Number: EJ1018153
Record Type: Journal
Publication Date: 2013-Jun
Abstractor: As Provided
Reference Count: N/A
Repetitive Visual Stimulation Enhances Recovery from Severe Amblyopia
Montey, Karen L.; Eaton, Nicolette C.; Quinlan, Elizabeth M.
Learning & Memory, v20 n6 p311-317 Jun 2013
Severe amblyopia, characterized by a significant reduction in visual acuity through the affected eye, is highly resistant to reversal in adulthood. We have previously shown that synaptic plasticity can be reactivated in the adult rat visual cortex by dark exposure, and the reactivated plasticity can be harnessed to promote the recovery from severe amblyopia. Here we show that deprived-eye visually evoked responses are rapidly strengthened in dark-exposed amblyopes by passive viewing of repetitive visual stimuli. Surprisingly, passive visual stimulation rapidly enhanced visually evoked responses to novel stimuli and enhanced the recovery from severe amblyopia driven by performance of active visual discriminations. Thus a series of simple, noninvasive manipulations of visual experience can be used in combination to significantly guide the recovery of visual response strength, selectivity, and spatial acuity in adult amblyopes.
Descriptors: Visual Acuity, Visual Impairments, Brain Hemisphere Functions, Animals, Visual Stimuli, Stimulation, Spatial Ability, Visual Discrimination
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A