EEG correlates of cerebral engagement in reading tasks

E Bizas, P G Simos, C J Stam, S Arvanitis, D Terzakis, S Micheloyannis

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

This study evaluated the utility of electroencephalographic (EEG) measures as indices of regional cerebral engagement activation during reading in neurologically intact adult volunteers. EEG was recorded from 16 scalp locations as participants performed four visual detection tasks designed to tap into increasingly more complex operations regularly involved in reading, namely visual-spatial, orthographic, phonological, and semantic. EEG records were quantified using power spectrum measures in four frequency bands (delta, theta, alpha, beta1, and beta2), in addition to a non-linear estimate of signal complexity (prediction error). Results showed that (1) changes in spectral power between pairs of reading tasks, and (2) regional variations in EEG measures for each task, were restricted to signals recorded over the left hemisphere. These findings are in agreement with knowledge regarding left hemisphere involvement in higher level component processes of reading.

Original languageEnglish
Pages (from-to)99-105
Number of pages7
JournalBrain Topography
Volume12
Issue number2
Publication statusPublished - 1999

Cite this

Bizas, E., Simos, P. G., Stam, C. J., Arvanitis, S., Terzakis, D., & Micheloyannis, S. (1999). EEG correlates of cerebral engagement in reading tasks. Brain Topography, 12(2), 99-105.