Are vowels and consonants processed differently? Event-related potential evidence with a delayed letter paradigm

Carreiras, Manuel and Vergara, Marta and Gillon-Dowens, Margaret and Perea, Manuel (2009) Are vowels and consonants processed differently? Event-related potential evidence with a delayed letter paradigm. Journal of Cognitive Neuroscience, 21 (2). pp. 275-288. ISSN 0898-929X

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Abstract

To investigate the neural bases of consonant and vowel processing, event-related potentials (ERPs) were recorded while participants read words and pseudo words in a lexical decision task. The stimuli were displayed in three different conditions: (i) simultaneous presentation of all letters (baseline condition); (ii) presentation of all letters, except that two internal consonants were delayed for 50 msec (consonants-delayed condition); and (iii) presentation of all letters, except that two internal vowels were delayed for 50 msec (vowels-delayed condition). The behavioral results showed that, for words, response times in the consonants-delayed condition were longer than in the vowels-delayed condition, which, in turn, were longer than in the baseline condition. The ERPs showed that, starting as early as 150 msec, words in the consonants-delayed condition produced a larger negativity than words in vowels- delayed condition. In addition, there were peak latency differences and amplitude differences in the P150, N250, P325, and N400 components between the baseline and the two letter- delayed conditions. We examine the implications of these findings for models of visual-word recognition and reading.

Item Type: Article
Additional Information: ©2008 Massachusetts Institute of Technology
Keywords: vowels; consonants; event-related potentials
Schools/Departments: University of Nottingham Ningbo China > Faculty of Humanities and Social Sciences > School of English
Identification Number: https://doi.org/10.1162/jocn.2008.21023
Depositing User: LI, Zhilin
Date Deposited: 13 Mar 2018 08:56
Last Modified: 13 Mar 2018 19:15
URI: http://eprints.nottingham.ac.uk/id/eprint/50216

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