We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Influence of reading skill on word length effect in Fixation related potentials of school aged children.
- Authors
Loberg, Otto; Hautala, Jarkko; Hämäläinen, Jarmo A.; Leppänen, Paavo H. T.
- Abstract
Word length has been shown to have greater influence on eye-movements (EM) if the individual has poor reading skill. Whether this difference co-occurs with electrophysiological brain activity effects is unknown. We examined influence of word length on fixation related potentials (FRP) and EMs of school aged (12 to 13,5 years) Finnish children. For this end, we used unexamined part of our dataset used in previous study. In this study, participants read sentences and provided sensibility judgements while their EMs and EEG were co-registered. We had two groups of participants: Slow readers (N=27) and Typical readers (N=65). FRPs were extracted with linear deconvolution with word length, fixation type (first fixation vs additional fixation) and previous saccade amplitude as predictors of the brain activity. FRPs were analyzed with nonparametric cluster based permutation tests and EM variables with LMMs. Pattern of stronger word length effect in eye-movements for slow reading was replicated, but effect of word length was not different between Slow and Typical readers in the FRPs. We found that for EMs word length had influence on first fixations, not on additional fixations. In FRPs word length had influence on brain activity only during additional fixations. We also found that the intercept FRP's, that contains the activity common to all fixations used in the estimation, were different between the two groups. Results suggest that stronger influence of word length on EMs of Slow readers is not due stronger direct modulation, but rather reflects accumulation of inefficient processing over multiple fixations.
- Subjects
SCHOOL children; CHILDREN with dyslexia; CHILDREN with developmental disabilities; ABILITY; INFLUENCE; DECONVOLUTION (Mathematics); VOCABULARY
- Publication
Journal of Eye Movement Research, 2019, Vol 12, Issue 7, p247
- ISSN
1995-8692
- Publication type
Article