Specificity and generalization of perceptual learning in low myopia

Casco, Clara, Guzzon, Daniela, Moise, Monica , Vecchies, Antonella, Testa, Tiziano and Pavan, Andrea (2014) Specificity and generalization of perceptual learning in low myopia. Restorative Neurology and Neuroscience, 32 (5). pp. 639-653. ISSN 0922-6028

WarningThere is a more recent version of this item available.

Full text not available from this repository.

Item Type:Article
Item Status:Live Archive



In this study we investigated in observers with low myopia: (i) the pattern of lateral interactions between stimuli activating early cortical analyzers and its modulation by perceptual learning (PL), and (ii) whether PL transferred to untrained stimuli and tasks and whether it exhibits interocular transfer.


Participants (seven adults with low myopia) performed 12 training sessions. Participants were trained on a contrast detection task of a central Gabor target flanked by two co-oriented and co-aligned high contrast Gabor patches. Target-to-flankers separation along the vertical axis was varied from 2 wavelengths (λ) to 8λ.


The results showed that before PL facilitatory lateral interactions in the myopic eye were reduced in strength, but PL increased contrast sensitivity and improved facilitatory lateral interactions. However, PL did not transfer to different local/global orientations and lower spatial frequencies. On the other hand, PL resulted in an enhancement of the contrast sensitivity function (CSF) and of the uncorrected visual acuity (UCVA) both in the trained and untrained eye.


Such improvements seem to be associated to a modulation of lateral interactions between target and flankers and it is likely to take place at a level in which the inputs from the two eyes converge.

Keywords:Perceptual learning in low myopia, JCNotOpen
Subjects:C Biological Sciences > C810 Applied Psychology
Divisions:College of Social Science > School of Psychology
Related URLs:
ID Code:16311
Deposited On:20 Dec 2014 22:28

Available Versions of this Item

Repository Staff Only: item control page