کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7321135 1475592 2014 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Predictability, plausibility, and two late ERP positivities during written sentence comprehension
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
پیش نمایش صفحه اول مقاله
Predictability, plausibility, and two late ERP positivities during written sentence comprehension
چکیده انگلیسی
Van Petten and Luka's (2012, International Journal of Psychophysiology, 83(2), 176-190) literature survey of late positive ERP components elicited by more or less predictable words during sentence processing led them to propose two topographically and functionally distinct positivities: a parietal one associated with semantically incongruent words related to semantic reanalysis and a frontal one with unknown significance associated with congruent but lexically unpredicted words. With the goal of testing this hypothesis within a single set of experimental materials and participants, we report results from two ERP studies: Experiment 1, a post-hoc analysis of a dataset that varied on dimensions of both cloze probability (predictability) and plausibility, and Experiment 2, a follow-up study in which these factors were manipulated in a controlled fashion. In both studies, we observed distinct post-N400 positivities: a more anterior one to plausible, but not anomalous, low cloze probability sentence medial words, and a more posterior one to semantically anomalous sentence continuations. Taken together with an observed canonical cloze-modulated N400, these dual positivities indicate a dissociation between brain processes relating to written words׳ sentential predictability versus plausibility, clearly an important distinction for any viable neural or psycholinguistic model of written sentence processing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuropsychologia - Volume 61, August 2014, Pages 150-162
نویسندگان
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