A1 Journal article (refereed)
Fixation-related potentials in naming speed : A combined EEG and eye-tracking study on children with dyslexia (2021)
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
JYU authors or editors
Publication details
All authors or editors: Christoforou, Christoforos; Fella, Argyro; Leppänen, Paavo H.T.; Georgiou, George K.; Papadopoulos, Timothy C.
Journal or series: Clinical Neurophysiology
ISSN: 1388-2457
eISSN: 1872-8952
Publication year: 2021
Volume: 132
Issue number: 11
Pages range: 2798-2807
Publisher: Elsevier
Publication country: Netherlands
Publication language: English
DOI: https://doi.org/10.1016/j.clinph.2021.08.013
Publication open access: Openly available
Publication channel open access: Partially open access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/77953
Abstract
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.
Keywords: dyslexia; psychological tests; eye tracking; EEG
Free keywords: EEG; Fixation-Related Potentials; eye-tracking; RAN
Contributing organizations
Ministry reporting: Yes
Reporting Year: 2021
JUFO rating: 2
