Hemispheric asymmetry profiles during beginning reading: effects of reading level and word type.
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.
Porta
María Elsa
ME
Department of Human and Community Development, University of California, Davis, California, USA. meporta@lab.cricyt.edu.ar
Kraft
Rosemarie
R
Harper
Lawrence
L
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*