Fixation-related potentials in naming speed : A combined EEG and eye-tracking study on children with dyslexia
Christoforou, C., Fella, A., Leppänen, P. H., Georgiou, G. K., & Papadopoulos, T. C. (2021). Fixation-related potentials in naming speed : A combined EEG and eye-tracking study on children with dyslexia. Clinical Neurophysiology, 132(11), 2798-2807. https://doi.org/10.1016/j.clinph.2021.08.013
Published in
Clinical NeurophysiologyAuthors
Date
2021Copyright
© 2021 International Federation of Clinical Neurophysiology. Published by Elsevier B.V.
Objective
We combined electroencephalography (EEG) and eye-tracking recordings to examine the underlying factors elicited during the serial Rapid-Automatized Naming (RAN) task that may differentiate between children with dyslexia (DYS) and chronological age controls (CAC).
Methods
Thirty children with DYS and 30 CAC (Mage = 9.79 years; age range 7.6 through 12.1 years) performed a set of serial RAN tasks. We extracted fixation-related potentials (FRPs) under phonologically similar (rime-confound) or visually similar (resembling lowercase letters) and dissimilar (non-confounding and discrete uppercase letters, respectively) control tasks.
Results
Results revealed significant differences in FRP amplitudes between DYS and CAC groups under the phonologically similar and phonologically non-confounding conditions. No differences were observed in the case of the visual conditions. Moreover, regression analysis showed that the average amplitude of the extracted components significantly predicted RAN performance.
Conclusion
FRPs capture neural components during the serial RAN task informative of differences between DYS and CAC and establish a relationship between neurocognitive processes during serial RAN and dyslexia.
Significance
We suggest our approach as a methodological model for the concurrent analysis of neurophysiological and eye-gaze data to decipher the role of RAN in reading.
...
Publisher
ElsevierISSN Search the Publication Forum
1388-2457Keywords
Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/101047541
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Additional information about funding
This research was supported by a Cyprus Research Promotion Foundation Grant and the European Regional Development Fund (ERDF): EXCELLENCE HUBS/1216/0508.License
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