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Hand motor cortical area reorganization in stroke

P. M. Rossini, C. Caltagirone, A. Castriota-Scanderbeg, P. Cicinelli, C. Del Gratta, M. Demartin, V. Pizzella, R. Traversa, G. L. Romani
1998 NeuroReport  
THE anatomical and functional correlates of the hand sensorimotor areas was investigated in a stroke patient with a malacic lesion in the left fronto-parieto-temporal cortex.  ...  The patient presented hemiplegia and motor aphasia 12 months earlier, followed by an excellent motor recovery.  ...  Neuroimaging in post-stroke brain reorganization Discussion Mapping motor and somatosensory cortical areas through focal TCS and MEG is useful to investigate hand representation and to detect interhemispheric  ... 
doi:10.1097/00001756-199806220-00043 pmid:9674609 fatcat:g7q52qcefzdrlpvfwz3wtd5sdm

Neuronal post-stroke plasticity in the adult

Paolo M Rossini, Gloria Dal Forno
2004 Restorative Neurology and Neuroscience  
stages after a brain tissue lesion has occurred and stabilized.  ...  The mechanisms subtending post-stroke recovery are probably complex and operating at different levels, from molecular to synaptic to anatomical reorganization.  ...  Mapping motor and somatosensory cortical areas through TMS, fMRI, PET, EEG and MEG is useful to investigate hand representation and to detect interhemispheric asymmetries in normal subjects and in patients  ... 
pmid:15502265 fatcat:ouhpkgax2vgkjgl64vregcgbfe

Magnetoencephalography in Stroke Recovery and Rehabilitation

Andrea Paggiaro, Niels Birbaumer, Marianna Cavinato, Cristina Turco, Emanuela Formaggio, Alessandra Del Felice, Stefano Masiero, Francesco Piccione
2016 Frontiers in Neurology  
MEG might, however, also be of help in monitoring stroke recovery and rehabilitation. This review focuses on experimental use of MEG in neurorehabilitation.  ...  Magnetoencephalography (MEG) is a non-invasive neurophysiological technique used to study the cerebral cortex.  ...  As a proof, Wang and colleagues found that this property predicts motor hand recovery in stroke (11) .  ... 
doi:10.3389/fneur.2016.00035 pmid:27065338 pmcid:PMC4815903 fatcat:mgy4fwettjdsdaxo3oxunxcuga

Cortical Mechanisms of Mirror Therapy After Stroke

Holly E. Rossiter, Mimi R. Borrelli, Robin J. Borchert, David Bradbury, Nick S. Ward
2014 Neurorehabilitation and Neural Repair  
We studied patients with a wide range of impairment and also a varying amount of time after stroke.  ...  Indeed, a number of non-invasive brain stimulation studies have attempted to reverse this imbalance and so facilitate recovery after stroke by reducing excitability in contralesional motor cortex.  ... 
doi:10.1177/1545968314554622 pmid:25326511 fatcat:hv4eseveovcgvoymeebb5lt6vu

Bibliographic survey of the clinical application of magnetoencephalography (II): stroke
脳磁図の臨床応用に関する文献レビュー (第2報) : 虚血性脳血管障害

Naohiro Tsuyuguchi, Kyousuke Kamada, Nobukazu Nakasato, Takehiro Uda, Hidetoshi Ikeda, Shinichi Sakamoto, Isamu Ozaki, Yoshinobu Iguchi, Masayuki Hirata, Shigeki Kameyama, Ryouhei Ishii, Hideaki Shiraishi (+2 others)
2012 Japanese Journal of Clinical Neurophysiology  
Neuroimage 14: 474 485, 2001. 17 Tecchio F, Zappasodi F, Tombini M, et al: Interhemispheric asymmetry of primary hand representation and recovery after stroke: a MEG study.  ...  Neurosci Lett 416: 310 314, 2007. 12 Altamura C, Torquati K, Zappasodi F, et al: fMRI-vs-MEG evaluation of post-stroke interhemispheric asymmetries in primary sensorimotor hand areas.  ...  The present study reviewed MEG studies of cerebral stroke using internet searches of the bibliography to identify scientific evidence for the clinical effectiveness of MEG.  ... 
doi:10.11422/jscn.40.195 fatcat:spq55vmmazfqvhr3xyyeqsqc3q

Biomarkers and Predictors of Restorative Therapy Effects After Stroke

Erin Burke, Steven C. Cramer
2013 Current Neurology and Neuroscience Reports  
Limitations of published studies include a focus on chronic stroke, however the brain is most galvanized to respond to restorative therapies in the early days post-stroke.  ...  Multimodal approaches might be the most robust approach for stratifying patients and so for optimizing prescription of restorative therapies after stroke.  ...  Acknowledgments This work was supported by grants R01 NS058755 and NIH/NCRR 1ULRR031985.  ... 
doi:10.1007/s11910-012-0329-9 pmid:23299824 pmcid:PMC3580200 fatcat:g5lsfxxjkbhiljoyxrfolyqw5q

Cerebral Plasticity After Subcortical Stroke as Revealed by Cortico-Muscular Coherence

Fei Meng, Kai-Yu Tong, Suk-Tak Chan, Wan-Wa Wong, Ka-Him Lui, Kwok-Wing Tang, Xiaorong Gao, Shangkai Gao
2009 IEEE transactions on neural systems and rehabilitation engineering  
The interhemispheric spatial displacement was also calculated using electrodes projection optimization and spherical surface laplacian.  ...  The results showed that the CMCoh could help investigate the cerebral reorganization after stroke.  ...  Lin, and M. Pohja for their valuable suggestions. The authors would also like to thank the staff of the Applied Cognitive Neuroscience Laboratory of Hong Kong Polytechnic University.  ... 
doi:10.1109/tnsre.2008.2006209 pmid:19273041 fatcat:7qhtvfci3napplgbvybrt4fttu

Adaptive Plasticity in the Healthy Language Network: Implications for Language Recovery after Stroke

Gesa Hartwigsen
2016 Neural Plasticity  
We conclude with a critical discussion on the potential of NIBS to facilitate language recovery after stroke and propose a phase-specific model for the application of NIBS in language rehabilitation.  ...  A large number of studies applied transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (tDCS) in the healthy brain to probe the functional relevance and interaction of specific  ...  to enhance recovery of language function after stroke-induced brain lesions.  ... 
doi:10.1155/2016/9674790 pmid:27830094 pmcid:PMC5088318 fatcat:qqmwczphgneztao62jbi2stbkq

Improvement in Touch Sensation after Stroke is Associated with Resting Functional Connectivity Changes

Louise C. Bannister, Sheila G. Crewther, Maria Gavrilescu, Leeanne M. Carey
2015 Frontiers in Neurology  
Objective: We aimed to identify how recovery of somatosensory function in the first 6 months after stroke was associated with functional network changes as measured using resting-state connectivity analysis  ...  after stroke and changes in functional brain connectivity.  ...  (16) used magnetoencephalography (MEG) to study 18 patients at the acute (5 days) and post-acute (6 months) stages after stroke.  ... 
doi:10.3389/fneur.2015.00165 pmid:26284024 pmcid:PMC4521505 fatcat:5ui34x5qqzhi7c4rwcrnzyr2ha

Multiscale topological properties of functional brain networks during motor imagery after stroke

Fabrizio De Vico Fallani, Floriana Pichiorri, Giovanni Morone, Marco Molinari, Fabio Babiloni, Febo Cincotti, Donatella Mattia
2013 NeuroImage  
In the beta (13-30 Hz) frequency band, the MI of the affected hand (Ahand) elicited a significantly lower smallworldness and local efficiency (Eloc) versus the unaffected hand (Uhand).  ...  However, many studies have often focused on single topological scales, leading to an incomplete model of how focal brain lesions affect multiple network properties simultaneously and how changes on smaller  ...  This paper only reflects the authors' views; funding agencies are not liable for any use that may be made of the information contained herein.  ... 
doi:10.1016/j.neuroimage.2013.06.039 pmid:23791916 fatcat:ay5jype6ebgw7ghwxvltrr36sa

Neurophysiological markers of plastic brain reorganization following central and peripheral lesions

Florinda Ferreri, Andrea Guerra, Paolo Maria Rossini
2014 Archives Italiennes de Biologie  
In this review we analyze stroke and amputees studies, as illustrative conditions of central and peripheral nervous system damage, and discuss the adaptive as well maladaptive plastic brain changes following  ...  Brain plasticity involves distinct functional and structural components and plays a crucial role in reorganizing central nervous system's networks after central and peripheral lesions in order to partly  ...  Acknowledgements This work was supported in part by the Italian Institute of Health Grant GR-2008-1143091 (to F.F.).  ... 
doi:10.12871/00039829201443 pmid:25987182 fatcat:6b2btuei7vg2vpakcpywyq4e5m

Measurement of sensory deficiency in fine touch after stroke during textile fabric stimulation by electroencephalography (EEG)

Yanhuan Huang, Jiao Jiao, Junyan Hu, Chihchia Hsing, Zhangqi Lai, Yang Yang, Xiaoling Hu
2020 Journal of Neural Engineering  
Sensory deficiency of fine touch limits the restoration of motor functions after stroke, and its evaluation was seldom investigated from a neurological perspective.  ...  The neural responses of individuals with fine touch impairments after stroke were characterized by a shifted power spectrum to a higher frequency band, enlarged sensory cortical areas and higher RSP intensity  ...  Acknowledgments The authors would like to thank the participants who participated in this study. This project was funded by NSFC 81771959 and PolyU YBWP.  ... 
doi:10.1088/1741-2552/aba160 pmid:32613946 fatcat:nl6bc47xfng2jnejh55ropi2r4

Alteration and reorganization of functional networks: a new perspective in brain injury study

Nazareth Castellanos
2011 Frontiers in Human Neuroscience  
In this article, we review studies investigating functional connectivity changes after brain injury and subsequent recovery, providing an accessible introduction to common mathematical methods to infer  ...  Recently several studies have shown how functional connections among the brain areas are severely altered by brain injury and plasticity leading to a reorganization of the networks.  ...  This work has been supported by MADRI.B (CAM i+d+I project), Obra Social CajaMadrid, MAPFRE 2009, IMSERSO (07-2008 projects and Spanish ministery of Science and Innovation (PCI2009-14415-CO3-01).  ... 
doi:10.3389/fnhum.2011.00090 pmid:21960965 pmcid:PMC3177176 fatcat:nzhxqdsbvbcohaa2rzqkgfxdzu

Oral Presentations

2000 Stroke  
It is ideally suited as a diagnostic study in pts. with acute stroke. qCBF may be an effective physiologic marker for the identification of patients at high risk for SHC and/or CH after thrombolytic therapy  ...  Methods and results: We conducted a prospective outcome study of patients with acute ischemic stroke (IS) admitted to hospital within 6 hours of symptom onset.  ...  We evaluated 4 patients within 24 hours after onset of stroke, of whom one underwent emergency carotid endarterectomy because of insufficient collateral flow.  ... 
doi:10.1161/01.str.31.1.275 fatcat:kzhua4mnzjcp3pqzu4rdidt3qu

Does cerebrovascular disease affect the coupling between neuronal activity and local haemodynamics?

P. M. Rossini
2004 Brain  
All patients showed clear MEG signals in both the affected and unaffected hemispheres, indicating well synchronized, stimulus-locked ®ring of neurons in the primary sensorimotor cortex, but some patients  ...  = magnetoencephalography; MFV = mean¯ow velocity; NIH = National Institutes of Health stroke scale; PVCs = periventricular changes; rCBF = regional cerebral blood¯ow; ROI = region of interest; SEF = somatosensory  ...  This work was partially supported by a grant from the Italian Ministry of Research to the Centre of Excellence on Aging of the University of Chieti.  ... 
doi:10.1093/brain/awh012 pmid:14570819 fatcat:jstgj7kklrcprgpk5ndvxcx3ye
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