Large-Scale Phase Synchrony Reflects Clinical Status After Stroke: An EEG Study

Neurorehabilitation and Neural Repair
Teiji KawanoIchiro Miyai

Abstract

Stroke-induced focal brain lesions often exert remote effects via residual neural network activity. Electroencephalographic (EEG) techniques can assess neural network modifications after brain damage. Recently, EEG phase synchrony analyses have shown associations between the level of large-scale phase synchrony of brain activity and clinical symptoms; however, few reports have assessed such associations in stroke patients. The aim of this study was to investigate the clinical relevance of hemispheric phase synchrony in stroke patients by calculating its correlation with clinical status. This cross-sectional study included 19 patients with post-acute ischemic stroke admitted for inpatient rehabilitation. Interhemispheric phase synchrony indices (IH-PSIs) were computed in 2 frequency bands (alpha [α], and beta [β]), and associations between indices and scores of the Functional Independence Measure (FIM), the National Institutes of Health Stroke Scale (NIHSS), and the Fugl-Meyer Motor Assessment (FMA) were analyzed. For further assessments of IH-PSIs, ipsilesional intrahemispheric PSIs (IntraH-PSIs) as well as IH- and IntraH-phase lag indices (PLIs) were also evaluated. IH-PSIs correlated significantly with FIM scores and NIHSS sc...Continue Reading

References

Nov 1, 1994·Stroke; a Journal of Cerebral Circulation·P LydenJ Marler
Jan 5, 2000·Human Brain Mapping·J P LachauxF J Varela
Apr 2, 2005·Nature Reviews. Neuroscience·Alfons Schnitzler, Joachim Gross
Nov 18, 2005·Progress in Neurobiology·Ernesto PeredaJoydeep Bhattacharya
Mar 20, 2010·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Maurits P A van MeerRick M Dijkhuizen
Apr 1, 2010·Brain : a Journal of Neurology·Liang WangChaozhe Zhu
Jul 2, 2010·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Wenqing WuShanbao Tong
Apr 1, 2011·Neurorehabilitation and Neural Repair·Ichiro MiyaiMakoto Ishikawa
Mar 24, 2012·NeuroImage·Sviatlana DubovikAdrian G Guggisberg
Jan 25, 2014·Lancet Neurology·Christian Grefkes, Gereon R Fink
Sep 4, 2014·Brain Topography·Adrian G GuggisbergJean-Michel Pignat
Dec 31, 2014·PLoS Biology·Randolph F HelfrichAndreas K Engel

❮ Previous
Next ❯

Citations

Jul 22, 2020·Neurorehabilitation and Neural Repair·Teiji KawanoIchiro Miyai
Apr 20, 2019·Physical Review. E·Kei-Ichi UedaYasumasa Nishiura
Mar 8, 2021·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Zaira RomeoMarco Zorzi
Mar 25, 2021·Brain and Behavior·Dylan B SnyderScott A Beardsley
Apr 17, 2021·PLoS Computational Biology·Takumi Sase, Keiichi Kitajo

❮ Previous
Next ❯

Software Mentioned

MATLAB
SPSS

Related Concepts

Related Feeds

Brain Ischemia

Brain ischemia is a condition in which there is insufficient blood flow to the brain to meet metabolic demand. Discover the latest research on brain ischemia here.

Acute Stroke

A stroke occurs when blood supply to the brain is interrupted depriving the brain of oxygen and nutrients. This feed focuses cerebrovascular accidents including ischemic and paralytic stroke.

Brain Injury & Trauma

brain injury after impact to the head is due to both immediate mechanical effects and delayed responses of neural tissues.

Related Papers

Journal of Physiotherapy
Li Khim Kwah, Joanna Diong
Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association
Koichi HosomiYouichi Saitoh
International Journal of Rehabilitation Research. Internationale Zeitschrift Für Rehabilitationsforschung. Revue Internationale De Recherches De Réadaptation
Kemal NasAyşegül Jale Saraç
International Journal of Rehabilitation Research. Internationale Zeitschrift Für Rehabilitationsforschung. Revue Internationale De Recherches De Réadaptation
Kemal NasAyşegül Jale Saraç
© 2022 Meta ULC. All rights reserved