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ArtikelAn electrophysiological investigation of semantic and phonological processing in skilled and less-skilled comprehenders  
Oleh: Landi, Nicole ; Perfetti, Charles A.
Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 102 no. 1 (2007), page 30-45.
Topik: Reading comprehension; Semantics; Phonology; Reading skill; ERP
Fulltext: 102_01_Landi.pdf (1.28MB)
Isi artikelThe most prominent theories of reading consider reading comprehension ability to be a direct consequence of lower-level reading skills. Recently however, research has shown that some children with poor comprehension ability perform normally on tests of lower-level skills (e.g., decoding). One promising line of behavioral research has found semantic processing diVerences between good and poor comprehenders and suggests that impoverished semantic ability may be linked to poor comprehenders’ diYculties. In the current study, we used event related potentials (ERP) to compare adult skilled and less-skilled comprehenders on a set of semantic and phonological processing tasks. The results revealed that the N400 component of the ERP and the P200 component were sensitive to diVerences between skilled and lessskilled comprehenders during a semantic processing task. Importantly, skilled and less-skilled comprehenders showed no diVerences in their ERP response during a phonological processing task. These Wndings provide neurophysiological support for the hypothesis that less-skilled comprehenders have a weakness in semantic processing that may contribute to their comprehension diYculties.
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