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A Model of the Production Effect over the Short-Term: The Cost of Relative Distinctiveness
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Decoding verbal working memory representations of Chinese characters from Broca's area
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Abstract:
Representations of sensory working memory can be found across the entire neocortex. But how are verbal working memory (VWM) contents retained in the human brain? Here we used fMRI and multi-voxel pattern analyses to study Chinese native speakers (15 males, 13 females) memorizing Chinese characters. Chinese characters are uniquely suitable to study VWM because verbal encoding is encouraged by their complex visual appearance and monosyllabic pronunciation. We found that activity patterns in Broca's area and left premotor cortex carried information about the memorized characters. These language-related areas carried (1) significantly more information about cued characters than those not cued for memorization, (2) significantly more information on the left than the right hemisphere and (3) significantly more information about Chinese symbols than complex visual patterns which are hard to verbalize. In contrast, early visual cortex carries a comparable amount of information about cued and uncued stimuli and is thus unlikely to be involved in memory retention. This study provides evidence for verbal working memory maintenance in a distributed network of language-related brain regions, consistent with distributed accounts of WM. The results also suggest that Broca's area and left premotor cortex form the articulatory network which serves articulatory rehearsal in the retention of verbal working memory contents.
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Keyword:
BF Psychology; P Philology. Linguistics; RC Internal medicine; RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
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URL: https://doi.org/10.1016/j.neuroimage.2020.117595 https://openaccess.city.ac.uk/id/eprint/25941/ https://openaccess.city.ac.uk/id/eprint/25941/1/1-s2.0-S1053811920310806-main.pdf
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23 |
Creating a theoretical framework to underpin discourse assessment and intervention in aphasia
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A systematic review of language and communication intervention research delivered in groups to older adults living in care homes
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The interplay between early social interaction, language and executive function development in deaf and hearing infants
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When forgetting fosters learning: A neural network model for Statistical Learning
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28 |
Effects of semantic plausibility, syntactic complexity and n-gram frequency on children's sentence repetition
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Early bilingual experience is associated with change detection ability in adults
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FFA and OFA encode distinct types of face identity information
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Clocking in on autism: time perception and temporal aspects of communication in autism spectrum disorders
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33 |
Patient experiences of therapy for borderline personality disorder: Commonalities and differences between dialectical behaviour therapy and mentalization-based therapy and relation to outcomes
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A Reference-Dependent Computational Model of Anorexia Nervosa
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35 |
Beliefs about unobservable scientific and religious entities are transmitted via subtle linguistic cues in parental testimony
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36 |
Nativeness, Social Distance and Structural Convergence in Dialogue
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How set switching affects the use of context-appropriate language by autistic and neuro-typical children
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Detecting joint attention events in mother-infant dyads : sharing looks cannot be reliably identified by naïve third-party observers
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39 |
Collective knowledge and the dynamics of culture in chimpanzees
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