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Individual differences in learning the regularities between orthography, phonology and semantics predict early reading skills
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In: J Mem Lang (2020)
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Differential Activation of the Visual Word Form Area During Auditory Phoneme Perception in Youth with Dyslexia
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In: Neuropsychologia (2020)
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Heteromodal Cortical Areas Encode Sensory-Motor Features of Word Meaning
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Abstract:
The capacity to process information in conceptual form is a fundamental aspect of human cognition, yet little is known about how this type of information is encoded in the brain. Although the role of sensory and motor cortical areas has been a focus of recent debate, neuroimaging studies of concept representation consistently implicate a network of heteromodal areas that seem to support concept retrieval in general rather than knowledge related to any particular sensory-motor content. We used predictive machine learning on fMRI data to investigate the hypothesis that cortical areas in this “general semantic network” (GSN) encode multimodal information derived from basic sensory-motor processes, possibly functioning as convergence–divergence zones for distributed concept representation. An encoding model based on five conceptual attributes directly related to sensory-motor experience (sound, color, shape, manipulability, and visual motion) was used to predict brain activation patterns associated with individual lexical concepts in a semantic decision task. When the analysis was restricted to voxels in the GSN, the model was able to identify the activation patterns corresponding to individual concrete concepts significantly above chance. In contrast, a model based on five perceptual attributes of the word form performed at chance level. This pattern was reversed when the analysis was restricted to areas involved in the perceptual analysis of written word forms. These results indicate that heteromodal areas involved in semantic processing encode information about the relative importance of different sensory-motor attributes of concepts, possibly by storing particular combinations of sensory and motor features.
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Keyword:
Brief Communications
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URL: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5030346/ http://www.ncbi.nlm.nih.gov/pubmed/27656016 https://doi.org/10.1523/JNEUROSCI.4095-15.2016
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Predicting brain activation patterns associated with individual lexical concepts based on five sensory-motor attributes
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Impact of dialect use on a basic component of learning to read
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Glutamate and choline levels predict individual differences in reading ability in emergent readers.
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In: The Journal of neuroscience : the official journal of the Society for Neuroscience, vol 34, iss 11 (2014)
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Dialect Awareness and Lexical Comprehension of Mainstream American English in African American English-Speaking Children
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Distributional structure in language: Contributions to noun–verb difficulty differences in infant word recognition
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Anatomy is strategy: Skilled reading differences associated with structural connectivity differences in the reading network
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Glutamate and Choline Levels Predict Individual Differences in Reading Ability in Emergent Readers
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The Role of Left Occipitotemporal Cortex in Reading: Reconciling Stimulus, Task, and Lexicality Effects
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Toddlers Activate Lexical Semantic Knowledge in the Absence of Visual Referents: Evidence from Auditory Priming
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