What the hell good does this do in getting survivors recovered?
Identifiable patterns of trait, state, and experience in chronic stroke recovery
Neurorehabilitation and Neural Repair (NNR) , Volume 35(2) , Pgs. 158-168.
NARIC Accession Number: J85576. What's this?
ISSN: 1545-9683.
Author(s): Duncan, E. Susan ; Shereen, A. Duke ; Gentimis, Thanos ; Small, Steven L..
Publication Year: 2021.
Number of Pages: 11.
NARIC Accession Number: J85576. What's this?
ISSN: 1545-9683.
Author(s): Duncan, E. Susan ; Shereen, A. Duke ; Gentimis, Thanos ; Small, Steven L..
Publication Year: 2021.
Number of Pages: 11.
Abstract:
Study investigated the stability of the brain’s functional connectivity
across tasks and sessions in individuals with chronic stroke using a
supervised machine learning approach. Twelve individuals with chronic
stroke underwent functional magnetic resonance imaging (fMRI) seven
times over 18 weeks. The middle 6 weeks consisted of intensive aphasia
therapy. fMRI data were collected during rest and performance of 2
tasks. Functional connectivity metrics were calculated for each imaging
run, then applied a support vector machine to classify data based on
participant, task, and time point (pre- or posttherapy). Permutation
testing established statistical significance. Whole-brain functional
connectivity matrices could be classified at levels significantly
greater than chance based on participant (87.1 percent accuracy), task
(68.1 percent accuracy), and time point (72.1 percent accuracy). All
significant effects were reproduced using only the contralesional right
hemisphere; the left hemisphere revealed significant effects for
participant and task, but not time point. Resting-state data could also
be used to classify task-based data according to subject (66.0 percent).
While the strongest posttherapy changes occurred among regions outside
putative language networks, connections with traditional
language-associated regions were significantly more positively
correlated with behavioral outcome measures, and other regions had more
negative correlations and intrahemispheric connections. The findings
suggest the profound importance of considering interindividual
variability when interpreting mechanisms of recovery in studies of
functional connectivity in stroke.
Descriptor Terms: APHASIA, BRAIN, IMAGING, STROKE.
Can this document be ordered through NARIC's document delivery service*?: Y.
Citation: Duncan, E. Susan , Shereen, A. Duke , Gentimis, Thanos , Small, Steven L.. (2021). Identifiable patterns of trait, state, and experience in chronic stroke recovery. Neurorehabilitation and Neural Repair (NNR) , 35(2), Pgs. 158-168. Retrieved 3/19/2021, from REHABDATA database.
* The majority of journal articles, books, and reports in our collection are only available by regular mail, rather than downloadable electronic format. Learn more about our digital collection and our document delivery service.
More information about this publication:
Neurorehabilitation and Neural Repair (NNR).
Descriptor Terms: APHASIA, BRAIN, IMAGING, STROKE.
Can this document be ordered through NARIC's document delivery service*?: Y.
Citation: Duncan, E. Susan , Shereen, A. Duke , Gentimis, Thanos , Small, Steven L.. (2021). Identifiable patterns of trait, state, and experience in chronic stroke recovery. Neurorehabilitation and Neural Repair (NNR) , 35(2), Pgs. 158-168. Retrieved 3/19/2021, from REHABDATA database.
* The majority of journal articles, books, and reports in our collection are only available by regular mail, rather than downloadable electronic format. Learn more about our digital collection and our document delivery service.
More information about this publication:
Neurorehabilitation and Neural Repair (NNR).
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