Electrophysiological Dynamics of the Development of Automatic Reading.
Mitra, Priya.
2017-04-24T15:10:52.158Z
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Abstract: Previous ERP studies have mapped the time course of automatic visual word recognition in adults (e.g., Holcomb & Grainger, 2006) and recent work extends this research to children (Eddy, Grainger, Holcomb, Mitra, & Gabrieli, submitted). In an ERP masked priming paradigm, we investigated sublexical and lexico-semantic processing as indexed by the N250 and N400 repetition priming ef... read morefects, respectively. We then used multiple regression models of reading abilities to predict the size of these priming effects. Children showed similar N250 and N400 priming effects to those seen in adults, but the N250 priming effect started somewhat later in developing readers. Somewhat surprisingly, developing readers did not show overall differences in the amplitude of the N250 and N400 priming effects across age groups. However, the size of these priming effects was predicted by reading skill. Adults' N400 effects were related to their reading fluency. In children, orthographic skills predicted the size of their early and late N250 priming effects and lexical/semantic knowledge predicted the size of their N400 effect. This suggests that the changes in the component processes of word reading indexed by the ERP waveform are more closely tied to the development of reading ability than to maturation.
Thesis (M.S.)--Tufts University, 2013.
Submitted to the Dept. of Psychology.
Advisor: Phillip Holcomb.
Committee: Marianna Eddy, and Katherine Midgley.
Keyword: Cognitive psychology.read less - ID:
- xg94j227z
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