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


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).

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 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.

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.

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

Last updated on 2022-20-09 at 13:51