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Multimodal Neural and Behavioral Data Predict Response to Rehabilitation in Chronic Poststroke Aphasia
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In: Stroke (2022)
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Selective Functional Network Changes Following tDCS-Augmented Language Treatment in Primary Progressive Aphasia
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In: Front Aging Neurosci (2021)
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Predicting language recovery in post-stroke aphasia using behavior and functional MRI
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In: Sci Rep (2021)
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Distinct Neural Substrates Support Phonological and Orthographic Working Memory: Implications for Theories of Working Memory
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Distinct Neural Substrates Support Phonological and Orthographic Working Memory: Implications for Theories of Working Memory
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In: Front Neurol (2021)
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A Tool for Automatic Scoring of Spelling Performance
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In: J Speech Lang Hear Res (2020)
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Reading Proficiency Influences the effects of Transcranial Direct Current Stimulation: Evidence from Selective Modulation of Dorsal and Ventral Pathways of reading in Bilinguals
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In: Brain Lang (2020)
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Different patterns of functional network re-organization across the variants of primary progressive aphasia: A graph theoretic analysis
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In: Neurobiol Aging (2020)
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Reliability of BOLD signals in chronic stroke-induced aphasia ...
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Language network re-organization associated with word- and sentence-level language interventions in chronic aphasia ...
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The use of spelling for variant classification in primary progressive aphasia: Theoretical and practical implications
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In: Neuropsychologia (2019)
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Local response heterogeneity indexes experience-based neural differentiation in reading
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Learning in complex, multi-component cognitive systems: Different learning challenges within the same system
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In: J Exp Psychol Learn Mem Cogn (2018)
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Right hemisphere grey matter volume and language functions in stroke aphasia
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Intrahemispheric Perfusion in Chronic Stroke-Induced Aphasia
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Right Hemisphere Grey Matter Volume and Language Functions in Stroke Aphasia
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Intrahemispheric Perfusion in Chronic Stroke-Induced Aphasia
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Right Hemisphere Grey Matter Volume and Language Functions in Stroke Aphasia
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Abstract:
The role of the right hemisphere (RH) in recovery from aphasia is incompletely understood. The present study quantified RH grey matter (GM) volume in individuals with chronic stroke-induced aphasia and cognitively healthy people using voxel-based morphometry. We compared group differences in GM volume in the entire RH and in RH regions-of-interest. Given that lesion site is a critical source of heterogeneity associated with poststroke language ability, we used voxel-based lesion symptom mapping (VLSM) to examine the relation between lesion site and language performance in the aphasic participants. Finally, using results derived from the VLSM as a covariate, we evaluated the relation between GM volume in the RH and language ability across domains, including comprehension and production processes both at the word and sentence levels and across spoken and written modalities. Between-subject comparisons showed that GM volume in the RH SMA was reduced in the aphasic group compared to the healthy controls. We also found that, for the aphasic group, increased RH volume in the MTG and the SMA was associated with better language comprehension and production scores, respectively. These data suggest that the RH may support functions previously performed by LH regions and have important implications for understanding poststroke reorganization.
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Keyword:
Research Article
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URL: https://doi.org/10.1155/2017/5601509 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5441122/
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