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journal article from
Journal of Neurolinguistics,
published by
Elsevier in 2004. The
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Description: Taking into consideration differences in syntactic configurations underlying the verb-complement merge operation, this experiment investigates three series of sentences containing incongruous and congruous merges. The aim is to relate syntactic specificities to the resulting ERP morphologies. Conditions tested required three types of computations: local merge, local merge depending on inheritance of semantic properties from an antecedent and merge performed at distance (WH-displacement). A total of 240 experimental sentences (80 for each condition) and 240 distractor sentences were generated in Brazilian Portuguese. Using a kinetic presentation protocol, sentences were displayed to each of 25 subjects, while the raw EEG was acquired at 20 derivations. Signal processing techniques were used to estimate the individual ERP for each anatomic region. Series 1 involving strictly local computations resulted in classic parietal N400s, whereas the inheritance stimuli elicited two peaks in the parietal and central region ERPs. Series 3-WH-displacement-presented earlier and more salient cortical responses. The different ERP morphologies resulting from each condition are consistent with a model in which language processing results from task-specific computations involving different neurological subsystems. .
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