Authors: Elisa Cainelli, Luca Vedovelli, Barbara Carretti & Patrizia Bisiacchi.

Article: EEG correlates of developmental dyslexia: a systematic review.

Publication: Annals of Dyslexia (Springer). Published: 22 November 2022 2022 | DOI: 10.1007/s11881-022-00273-1

[Full Text]


Dyslexia is one of the most studied learning disorders. Despite this, its biological basis and main causes are still not fully understood. Electroencephalography (EEG) could be a powerful tool in identifying the underlying mechanisms, but knowledge of the EEG correlates of developmental dyslexia (DD) remains elusive. We aimed to systematically review the evidence on EEG correlates of DD and establish their quality. In July 2021, we carried out an online search of the PubMed and Scopus databases to identify published articles on EEG correlates in children with dyslexia aged 6 to 12 years without comorbidities. We follow the PRISMA guidelines and assess the quality using the Appraisal Tool questionnaire. Our final analysis included 49 studies (14% high quality, 63% medium, 20% low, and 2% very low). Studies differed greatly in methodology, making a summary of their results challenging. However, some points came to light. Even at rest, children with dyslexia and children in the control group exhibited differences in several EEG measures, particularly in theta and alpha frequencies; these frequencies appear to be associated with learning performance. During reading-related tasks, the differences between dyslexic and control children seem more localized in the left temporoparietal sites. The EEG activity of children with dyslexia and children in the control group differed in many aspects, both at rest and during reading-related tasks. Our data are compatible with neuroimaging studies in the same diagnostic group and expand the literature by offering new insights into functional significance.

Tagged as: eeg, resting state connectivity, and tempoparietal activation


Cainelli, E., Vedovelli, L., Carretti, B. et al. EEG correlates of developmental dyslexia: a systematic review. Ann. of Dyslexia (2022).

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