Task-Guided Selection of the Dual Neural Pathways for Reading
نویسندگان
چکیده
The 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.
منابع مشابه
Attentional Demand of Speech in Children and Adolescents with Developmental Stuttering
Background & Objective: Stuttering is a prevalent disorder in children and adolescents. Because attention is the only fuel resource for cognitive functions and the language have high cognitive functions, then it is possible that speech difficulties are related to attention deficit. The purpose of this study was to investigate the attentional demand of speech in children and adolescents with dev...
متن کاملThe effect of dual-task training on balance of elderly women: with the motor and cognitive approach
The aim of this study was to investigate the effectiveness of motor and cognitive dual-task training on dynamic balance of elderly women. For this purpose, 27 old women (aged 60 -82 years) from the old people center of Birjand city were selected randomly and divided into 3 groupd based on their TUG scores. The groups comprised of cognitive dual-task training, motor dual-task training and contro...
متن کاملتأثیر دو شیوه تمرینی تکلیف دوگانه بر تعادل سالمندان: توانایی اختصاص توجه
Objectives: The inability to allocate attention to balance when performing concurrent tasks may cause the older adults to fall. Therefore, thisstudy aimed to investigate the effect of 2 types of dual-task training on the balance of older adults. Methods & Materials: This quasi-experimental study included 36 eligible older adults (aged>65 years) living in Kerman City, Iran. The s...
متن کاملScaffolding Comprehension and Recall Gaps: Effects of Paratextual Advance Organizers
Although filling the gap in reading comprehension gained momentum with the rise of the top-down approach, Vygotsky’ concept of scaffolding and the dual code theory provided a strong support for the use of paratext to enhance comprehension. Scaffolding is dependent on other-regulation, one type of which is object-regulation. From this vantage-point, various types of paratext can function as sou...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Neuron
دوره 52 شماره
صفحات -
تاریخ انتشار 2006