Further study of the electrophysiological correlates of lexical decision Export

@article{citeulike:277027, abstract = {Discriminations were required between words, pseudohomophones, and visually matched nonwords. Two tasks were employed, one which could be accomplished on the basis of a visual code (the REAL task, involving discrimination between words and both types of nonword) and another necessitating the use of a phonological code (the REAL/PSEUD task, words and pseudohomophones vs. nonwords). ERPs were recorded from three midline sites and from left and right inferior parietal sites. Two principal results were observed, (i) the peak latency of a late positive component, P637, covaried with RT, with variations in latency of around one half the corresponding RT variations, and (ii) the peak-to-peak amplitude of N100-P187 interacted with stimulus and task, such that it was larger for nonwords in the REAL task and words in the REAL/PSEUD task. No taskor stimulus-dependent asymmetries were observed in any ERP component. The P637 latency data support a model of RT variation based on the interaction of changes in parallel response preparation and stimulus evaluation processes. The observations with respect to N100-P187 suggest that ERPs are sensitive to factors related to the early processing of words and word-like visual material.}, author = {Rugg, Michael D.}, citeulike-article-id = {277027}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/0093-934X(83)90060-3}, citeulike-linkout-1 = {http://www.sciencedirect.com/science/article/B6WC0-4D5X9S3-9/2/afb3fbd58ac5e5f3c3be8a6b36cdbabc}, doi = {10.1016/0093-934X(83)90060-3}, journal = {Brain and Language}, keywords = {cksearch, cksearchgood, erps, pseudowords}, month = {May}, number = {1}, pages = {142--152}, posted-at = {2005-08-09 01:32:22}, priority = {2}, title = {Further study of the electrophysiological correlates of lexical decision}, url = {http://dx.doi.org/10.1016/0093-934X(83)90060-3}, volume = {19}, year = {1983} }

TY - JOUR ID - citeulike:277027 L3 - citeulike-article-id:277027 N2 - Discriminations were required between words, pseudohomophones, and visually matched nonwords. Two tasks were employed, one which could be accomplished on the basis of a visual code (the REAL task, involving discrimination between words and both types of nonword) and another necessitating the use of a phonological code (the REAL/PSEUD task, words and pseudohomophones vs. nonwords). ERPs were recorded from three midline sites and from left and right inferior parietal sites. Two principal results were observed, (i) the peak latency of a late positive component, P637, covaried with RT, with variations in latency of around one half the corresponding RT variations, and (ii) the peak-to-peak amplitude of N100-P187 interacted with stimulus and task, such that it was larger for nonwords in the REAL task and words in the REAL/PSEUD task. No taskor stimulus-dependent asymmetries were observed in any ERP component. The P637 latency data support a model of RT variation based on the interaction of changes in parallel response preparation and stimulus evaluation processes. The observations with respect to N100-P187 suggest that ERPs are sensitive to factors related to the early processing of words and word-like visual material. IS - 1 JF - Brain and Language EP - 152 TI - Further study of the electrophysiological correlates of lexical decision VL - 19 SP - 142 KW - cksearch KW - cksearchgood KW - erps KW - pseudowords AU - Rugg, Michael PY - 1983/05// UR - http://dx.doi.org/10.1016/0093-934X(83)90060-3 ER -