Improving visual functions in adult amblyopia with combined perceptual training and transcranial random noise stimulation (tRNS): a pilot study

Campana, Gianluca and Camilleri, Rebecca and Pavan, Andrea and Veronese, Antonella and Lo Giudice, Giuseppe (2014) Improving visual functions in adult amblyopia with combined perceptual training and transcranial random noise stimulation (tRNS): a pilot study. Frontiers in Psychology, 5 . p. 1402. ISSN 1664-1078

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Abstract

Amblyopia is a visual disorder due to an abnormal pattern of functional connectivity of the visual cortex and characterized by several visual deficits of spatial vision including impairments of visual acuity (VA) and of the contrast sensitivity function (CSF). Despite being a developmental disorder caused by reduced visual stimulation during early life (critical period), several studies have shown that extensive visual perceptual training can improve VA and CSF in people with amblyopia even in adulthood. With the present study we assessed whether a much shorter perceptual training regime, in association with high-frequency transcranial electrical stimulation (hf-tRNS), was able to improve visual functions in a group of adult participants with amblyopia. Results show that, in comparison with previous studies where a large number sessions with a similar training regime were used (Polat et al., 2004), here just eight sessions of training in contrast detection under lateral masking conditions combined with hf-tRNS, were able to substantially improve VA and CSF in adults with amblyopia.

Additional Information:This article is part of the Research Topic: Learning to see (better): improving visual deficits with perceptual learning
Keywords:amblyopia, visual acuity, contrast sensitivity, perceptual learning, lateral masking, tRNS, NotOAChecked
Subjects:C Biological Sciences > C800 Psychology
C Biological Sciences > C830 Experimental Psychology
C Biological Sciences > C810 Applied Psychology
Divisions:College of Social Science > School of Psychology
ID Code:16349
Deposited On:05 Jan 2015 18:06

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