Evidence for reading improvement following tDCS treatment in children and adolescents with Dyslexia

Floriana Costanzo, Cristiana Varuzza, Serena Rossi, Stefano Sdoia, Pamela Varvara, Massimiliano Oliveri, Giacomo Koch, Stefano Vicari, Deny Menghini

Research output: Contribution to journalArticle

Abstract

Purpose: There is evidence that non-invasive brain stimulation transitorily modulates reading by facilitating the neural pathways underactive in individuals with dyslexia. The study aimed at investigating whether multiple sessions of transcranial direct current stimulation (tDCS) would enhance reading abilities of children and adolescents with dyslexia and whether the effect is long-lasting. Methods: Eighteen children and adolescents with dyslexia received three 20-minute sessions a week for 6 weeks (18 sessions) of left anodal/right cathodal tDCS set at 1mA over parieto-temporal regions combined with a cognitive training. The participants were randomly assigned to the active or the sham treatment; reading tasks (text, high and low frequency words, non-words) were used as outcome measures and collected before treatment, after treatment and one month after the end of treatment. The tolerability of tDCS was evaluated. Results: The active group showed reduced low frequency word reading errors and non-word reading times. These positive effects were stable even one month after the end of treatment. None reported adverse effects. Conclusions: The study shows preliminary evidence of tDCS feasibility and efficacy in improving non-words and low frequency words reading of children and adolescents with dyslexia and it opens new rehabilitative perspectives for the remediation of dyslexia.

Original languageEnglish
Pages (from-to)215-226
Number of pages12
JournalRestorative Neurology and Neuroscience
Volume34
Issue number2
DOIs
Publication statusPublished - Mar 21 2016

Keywords

  • Brain stimulation
  • cognitive training
  • parieto-temporal regions

ASJC Scopus subject areas

  • Neurology
  • Developmental Neuroscience
  • Clinical Neurology

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