کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4322823 1291733 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Task-Guided Selection of the Dual Neural Pathways for Reading
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب سلولی و مولکولی
پیش نمایش صفحه اول مقاله
Task-Guided Selection of the Dual Neural Pathways for Reading
چکیده انگلیسی

SummaryThe visual perception of words is known to activate the auditory representation of their spoken forms automatically. We examined the neural mechanism for this phonological activation using transcranial magnetic stimulation (TMS) with a masked priming paradigm. The stimulation sites (left superior temporal gyrus [L-STG] and inferior parietal lobe [L-IPL]), modality of targets (visual and auditory), and task (pronunciation and lexical decision) were manipulated independently. For both within- and cross-modal conditions, the repetition priming during pronunciation was eliminated when TMS was applied to the L-IPL, but not when applied to the L-STG, whereas the priming during lexical decision was eliminated when the L-STG, but not the L-IPL, was stimulated. The observed double dissociation suggests that the conscious task instruction modulates the stimulus-driven activation of the lateral temporal cortex for lexico-phonological activation and the inferior parietal cortex for spoken word production, and thereby engages a different neural network for generating the appropriate behavioral response.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 52, Issue 3, 9 November 2006, Pages 557–564
نویسندگان
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