ArticleCerebral cortex (New York, N.Y. : 1991)2022
Context free and context-dependent conceptual representation in the brain.
Article in Cerebral cortex (New York, N.Y. : 1991), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Model-based semantic distance reveals adaptive coordination of distinct cognitive systems in flexible knowledge retrieval.Nature communications · 2026Article
- Protracted Maturation of Proactive and Reactive Systems Predicts Cognitive Stability and Psychopathology : A longitudinal multi-cohort study.bioRxiv : the preprint server for biology · 2026Article
- Mechanisms of semantic composition in older adults: control, semantic processing, and imagery.Frontiers in psychology · 2026Article
- A Novel Approach to Map the Causal Impact of Brain Stimulation on Semantic Processing With Language Models.Neurobiology of language (Cambridge, Mass.) · 2026Article
- Functional differentiation and interactions among inferior, medial frontal and posterior temporal cortex in semantic control.Communications biology · 2025Article
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- Reduced temporal and spatial stability of neural activity patterns predict cognitive control deficits in children with ADHD.Nature communications · 2025Article
- A double dissociation between semantic and spatial cognition in visual to default network pathways.eLife · 2025Article
- Alteration of brain metabolism in lacunar stroke based onFrontiers in neurology · 2025Article
- Reduced temporal and spatial stability of neural activity patterns predict cognitive control deficits in children with ADHD.bioRxiv : the preprint server for biology · 2024Article
- Stimulus Repetition and Sample Size Considerations in Item-Level Representational Similarity Analysis.Language, cognition and neuroscience · 2024Article
- Hippocampal contributions to novel spatial learning are both age-related and age-invariant.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Hippocampal contributions to novel spatial learning are both age-related and age-invariant.bioRxiv : the preprint server for biology · 2023Article
- Syntactic processing engages the semantic control network.Imaging neuroscience (Cambridge, Mass.)Article
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Authors and funding
8 authors.
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No grant is acknowledged in the PubMed record.
Abstract
How concepts are coded in the brain is a core issue in cognitive neuroscience. Studies have focused on how individual concepts are processed, but the way in which conceptual representation changes to suit the context is unclear. We parametrically manipulated the association strength between words, presented in pairs one word at a time using a slow event-related fMRI design. We combined representational similarity analysis and computational linguistics to probe the neurocomputational content of these trials. Individual word meaning was maintained in supramarginal gyrus (associated with verbal short-term memory) when items were judged to be unrelated, but not when a linking context was retrieved. Context-dependent meaning was instead represented in left lateral prefrontal gyrus (associated with controlled retrieval), angular gyrus, and ventral temporal lobe (regions associated with integrative aspects of memory). Analyses of informational connectivity, examining the similarity of activation patterns across trials between sites, showed that control network regions had more similar multivariate responses across trials when association strength was weak, reflecting a common controlled retrieval state when the task required more unusual associations. These findings indicate that semantic control and representational sites amplify contextually relevant meanings in trials judged to be related.
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