title: Hemispheric asymmetry profiles during beginning reading: effects of reading level and word type.
abstract: We evaluated how right- and the left-temporal lobe activation of first (1(st) LR), second (2(nd)LR), and third (3(rd)LR) level readers (N = 60; Age = 6-9 years) varied with reading level, word characteristics, and cognitive abilities by using electroencephalogram measurements while the children read high-frequency/high-imageability, high-frequency/low-imageability, and nonsense words. The ANOVA showed significant interaction effects: 1(st)LR had greater right-hemispheric activation than 3(rd)LR, who had greater left-hemispheric activation; for nonsense words, 1(st)LR had lower left-hemisphere activation than that of 2(nd)LR and 3(rd)LR. The electroencephalogram (EEG) measure of hemispheric asymmetry indicated a developmental effect on lateralized activity in the temporal lobes of beginning readers during word reading.
authors.affiliation: Department of Human and Community Development, University of California, Davis, California, USA. meporta@lab.cricyt.edu.ar
authors.forename: María Elsa
authors.initials: ME
authors.lastname: Porta
authors.forename: Rosemarie
authors.initials: R
authors.lastname: Kraft
authors.forename: Lawrence
authors.initials: L
authors.lastname: Harper
mesh_terms: D000704:Analysis of Variance; D001931:Brain Mapping; D002648:Child; D002675:Child, Preschool; D004569:Electroencephalography / Q000379:methods; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D008297:Male; D008960:Models, Psychological; D009483:Neuropsychological Tests; D010296:Parietal Lobe / Q000502:physiology; D010364:Pattern Recognition, Visual; D010775:Photic Stimulation; D011578:Psycholinguistics / Q000379:methods; D011932:Reading; D021641:Recognition, Psychology / Q000502:physiology; D012660:Semantics; D014705:Verbal Behavior / Q000502:physiology*