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  • Title: Auditory evoked field responses in the left hemisphere to morphosyntactic violations in Korean sentence.
    Author: Kwon H, Kim JM, Lee YH, Kim K, Park YK, Nam K, Kuriki S.
    Journal: Neurol Clin Neurophysiol; 2004 Nov 30; 2004():29. PubMed ID: 16012691.
    Abstract:
    To investigate multiple cortical regions associated with syntactic processes at the sentence level, auditory evoked field responses to morphosyntactic violations were measured over the left hemisphere of seven subjects. Subjects were asked to judge the acceptability of the final verb in verb-ending Korean sentence. Measured field data were transformed to the fields that would be detected on a standard sensing plane and averaged across subjects in different violation conditions. In the grand average data, we found distinct features at latencies of 400 ms and 600 ms, which seem to be specific to morphosyntactic processes. Equivalent current dipoles (ECDs) plotted on a standard brain indicate the inferior frontal region and the superior temporal gyrus for 400 ms component, and the middle temporal gyrus for 600 ms component. Our MEG study localized the distinct cortical regions involved in syntactic processes, which may be reflected in LAN and P600 of ERP.
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