Repetition Suppression for Spoken Sentences and the Effect of Task Demands
نویسندگان
چکیده
We examined whether the repeated processing of spoken sentences is accompanied by reduced bold oxygenation level-dependent response (repetition suppression) in regions implicated in sentence comprehension and whether the magnitude of such suppression depends on the task under which the sentences are comprehended or on the complexity of the sentences. We found that sentence repetition was associated with repetition suppression in temporal regions, independent of whether participants judged the sensibility of the statements or listened to the statements passively. In contrast, repetition suppression in inferior frontal regions was found only in the context of the task demanding active judgment. These results suggest that repetition suppression in temporal regions reflects facilitation of sentence comprehension processing per se, whereas in frontal regions it reflects, at least in part, easier execution of specific psycholinguistic judgments.
منابع مشابه
The Effect of Task Repetition and Task Recycling on EFL Learners' Oral Performance
One of the major criticisms leveled at task-based language teaching (TBLT), despite its countless merits, is developing fluency at the cost of accuracy. The post-task stage affords a number of options to counteract this downside through task repetition and task recycling. These two options are considered to positively affect learners' oral performance in terms of fluency, accuracy, and complexi...
متن کاملRepetition suppression of induced gamma band responses is eliminated by task switching.
The formation of cortical object representations requires the activation of cell assemblies, correlated by induced oscillatory bursts of activity > 20 Hz (induced gamma band responses; iGBRs). One marker of the functional dynamics within such cell assemblies is the suppression of iGBRs elicited by repeated stimuli. This effect is commonly interpreted as a signature of 'sharpening' processes wit...
متن کاملThe Effect of Task Repetition under Different Time Conditions on EFL Learners' Oral Performance and Grammatical Knowledge Gain
This quasi-experimental study aimed to investigate the effect of task repetition under four conditions on the three dimensions of oral production (accuracy, complexity and fluency) and grammatical knowledge gain of learners of English as a Foreign Language (EFL). 40 young learners of English as a Foreign Language in four classes were randomly assigned into one of the following groups: repetitio...
متن کاملThe Effect of Output-based Task Repetition on EFL Learners’ Speech Act Production
This study investigated the effects of different output-based task repetition conditions on EFL learners’ speech act production. Three intact classes of English-major students constituted three instructional groups: (1) the explicit task-repetition (ETR) group, (2) the implicit task-repetition (ITR) group, and (3) the no-input task repetition (NTR) group. All the three groups engaged in t...
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:
- Journal of cognitive neuroscience
دوره 18 12 شماره
صفحات -
تاریخ انتشار 2006