Event-related brain potential markers of high-language proficiency in adults  

Oleh:

Weber-Fox, Christine ; Davis, Laura J. ; Cuadrado, Elizabeth

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 85 no. 2 (2003), page 231-244.
Topik: Language proficiency; ERPs; Closed-class words; Lexical access; N400
Fulltext: 85_02_Weber-Fox.pdf (401.31KB)

Isi artikel

The central issue addressed is whether there are electrophysiological markers for high-language proficiency in adults. Eventrelated brain potentials (ERPs) were recorded in 19 young adults who demonstrated either ‘‘normal’’ or ‘‘high’’ language proficiency. ERPs were obtained during a sentence-processing task and analyzed for specific response components elicited by different word types. The ERPs in the normal and high-language proficiency groups were similar for early sensory related processing but differed in the later components thought to be more closely related to lexical access and post-lexical processing. The findings for the ERP waveforms suggest that adults with high-language proficiency show slightly faster lexical access over left anterior brain regions for closed class items, and a reduced reliance on contextual information contained in sentences.

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