Filters








15 Hits in 15.9 sec

The BOLD response in primary motor cortex and supplementary motor area during kinesthetic motor imagery based graded fMRI neurofeedback

David M.A. Mehler, Angharad N. Williams, Florian Krause, Michael Lührs, Richard G. Wise, Duncan L. Turner, David E.J. Linden, Joseph R. Whittaker
2019 NeuroImage  
Whilst it remains unclear whether the primary motor cortex (M1) can be activated during motor imagery, the supplementary motor area (SMA) has been robustly activated during motor imagery.  ...  Such differences in the regulation potential between primary and supplementary motor cortex are important because these areas can be differentially affected by a stroke or PD, and the choice of fMRI-NF  ...  Further, it was funded by a Health and Care Research Wales PhD studentship HS/14/20 and a Medical Research Council Confidence in Concept grant.  ... 
doi:10.1016/j.neuroimage.2018.09.007 pmid:30205210 pmcid:PMC6264383 fatcat:dxguavfgcfgqbooyjgoeeyqdvm

Graded fMRI Neurofeedback Training of Motor Imagery in Middle Cerebral Artery Stroke Patients: A Preregistered Proof-of-Concept Study

David M. A. Mehler, Angharad N. Williams, Joseph R. Whittaker, Florian Krause, Michael Lührs, Stefanie Kunas, Richard G. Wise, Hamsaraj G. M. Shetty, Duncan L. Turner, David E. J. Linden
2020 Frontiers in Human Neuroscience  
Neurofeedback was provided from the supplementary motor area (SMA) targeting two different neurofeedback target levels (low and high).  ...  Taken together, this work provides new insights about the feasibility of motor imagery-based graded fMRI-NF training in MCA stroke survivors and serves as a first example for comprehensive study preregistration  ...  and self-regulate the SMA during kinesthetic motor imagery-based graded neurofeedback training.  ... 
doi:10.3389/fnhum.2020.00226 pmid:32760259 pmcid:PMC7373077 fatcat:3ktbiinx6neifbummmwy7fgj4u

Neurofeedback-guided kinesthetic motor imagery training in Parkinson's disease: Randomized trial [article]

Sule Tinaz, Serageldin Kamel, Sai S Aravala, Mohamed Elfil, Ahmed Bayoumi, Amar Patel, Dustin Scheinost, Rajita Sinha, Michelle Hampson
2022 medRxiv   pre-print
We demonstrated that subjects with PD can increase the right insula-dmFC functional connectivity using fMRI-based neurofeedback (NF) combined with kinesthetic motor imagery (MI).  ...  Post-training changes in 1) task-based and resting-state right insula-dmFC functional connectivity were the imaging outcomes, and 2) MDS-UPDRS motor exam and motor function scores were the clinical outcomes  ...  We thank Jessica Lemere and Sayan Basu for their help with data collection, and Jessica Lemere for her help with imagery audio recordings.  ... 
doi:10.1101/2022.01.05.22268816 fatcat:tqnrbtvewbdhvbs5uibsonc5l4

Brain–machine Interface (BMI)-based Neurorehabilitation for Post-stroke Upper Limb Paralysis

Meigen Liu, Junichi Ushiba
2022 The Keio Journal of Medicine  
Subgroup analyses indicate higher intervention effects in the subacute group than the chronic group, when using movement attempts as the BMI-training trigger task rather than using motor imagery, and using  ...  The Keio BMI team has developed an electroencephalography-based neurorehabilitation system and has published clinical and basic studies demonstrating its effectiveness and neurophysiological mechanisms  ...  Whole-brain MRI revealed that the primary sensorimotor and supplementary motor areas were activated in the damaged hemisphere after the training.  ... 
doi:10.2302/kjm.2022-0002-oa pmid:35718470 fatcat:uizwnanjpncanpfvtjh7purqr4

Real-Time Subject-Independent Pattern Classification of Overt and Covert Movements from fNIRS Signals

Neethu Robinson, Ali Danish Zaidi, Mohit Rana, Vinod A. Prasad, Cuntai Guan, Niels Birbaumer, Ranganatha Sitaram, Eleni Vasilaki
2016 PLoS ONE  
In the first two experiments, activations in the motor cortex during movement execution and movement imagery were used to develop subject-dependent models that obtained high classification accuracies thereby  ...  Towards this goal, we used left versus right hand movement execution and movement imagery as study paradigms in a series of experiments.  ...  In addition to Pre-Motor Cortex (PMC), Supplementary Motor Area (SMA) and Primary Motor Cortex (M1), primary somatosensory cortex (S1) was also activated during motor imagery runs as shown. doi:10.1371  ... 
doi:10.1371/journal.pone.0159959 pmid:27467528 pmcid:PMC4965045 fatcat:j3mkik4ejngoroaw47jlg5dheu

Predicting Motor Imagery Performance From Resting-State EEG Using Dynamic Causal Modeling

Minji Lee, Jae-Geun Yoon, Seong-Whan Lee
2020 Frontiers in Human Neuroscience  
As a result, we observed a significant difference in the connectivity strength from the supplementary motor area to the right dorsolateral prefrontal cortex between the low- and high-MI performance groups  ...  Specifically, we investigated the motor network in resting-state, including the dorsolateral prefrontal cortex, which performs motor planning.  ...  In a DCM study using functional magnetic resonance imaging (fMRI), a forward connection was found between the supplementary motor area (SMA) and the primary motor cortex (M1).  ... 
doi:10.3389/fnhum.2020.00321 pmid:32903663 pmcid:PMC7438792 fatcat:xst4gxrryzgyji4ntfvnna2lbq

Abstracts Presented at the Thirty–Fourth Annual International Neuropsychological Society Conference, February 1–4, 2006, Boston, Massachussetts, USA

2006 Journal of the International Neuropsychological Society  
Participants underwent fMRI during the Arrows inhibition task.  ...  Objective: Response inhibition (RI) is mediated by prefrontal cortex, its circuitry, and associated cortical regions that are vulnerable in traumatic brain injury (TBI).  ...  In both groups, activation (uncorrected p<0.001) associated with RHFS and with LHFS was seen in the primary motor/sensory cortex (predominantly contralateral), supplementary motor area, basal ganglia,  ... 
doi:10.1017/s1355617706069918 fatcat:cy3cbwlgrvccfnn6w7inplceni

25th Annual Computational Neuroscience Meeting: CNS-2016

Tatyana O. Sharpee, Alain Destexhe, Mitsuo Kawato, Vladislav Sekulić, Frances K. Skinner, Daniel K. Wójcik, Chaitanya Chintaluri, Dorottya Cserpán, Zoltán Somogyvári, Jae Kyoung Kim, Zachary P. Kilpatrick, Matthew R. Bennett (+597 others)
2016 BMC Neuroscience  
I will discuss theoretical results that point to functional advantages of splitting neural populations into subtypes, both in feedforward and recurrent networks.  ...  Such classification scheme could augment classification schemes based on molecular, anatomical, and electrophysiological properties.  ...  The funders had no role in study design, data collection and analysis, the decision to publish, or the preparation of the manuscript.  ... 
doi:10.1186/s12868-016-0283-6 pmid:27534393 pmcid:PMC5001212 fatcat:bt45etzj2bbolfcxlxo7hlv6ju

Abstracts European Congress of NeuroRehabilitation 2019

EFNR The European Federation of NeuroRehabilitation Societies, Muresanu, D.
2019 Neurologie und Rehabilitation  
The World Federation for NeuroRehabilitation (WFNR) is a partner organization of the European Federation of NeuroRehabilitation Societies and strongly supports the European-wide approach of the EFNR in  ...  The regions of interest (ROIs) for fNIRS measurement were the left and right PMC, the primary motor area (M1), the primary sensory area (S1), and the parietal area (PC).  ...  In the fMRI group the passive movement of the paretic ankle increased blood oxygen level-dependent responses (BOLD) in the contralateral pre-and postcentral gyrus, superior temporal gyrus, central opercular  ... 
doi:10.14624/nr1912001 fatcat:gzw5qlbn5rgfvg26ff5lal5l5q

2013 Canadian Stroke Congress Abstracts

2013 Stroke  
In a region of interest-based approach, the performance of pCT was assessed using quantitative CBF-PET maps with respect to penumbral flow.  ...  Results: Across a number of AIS imaging sequences and in volunteers, the combination of CS and the SENSE PI method performed the best of the evaluated acceleration techniques.  ...  This study reviewed the use of two caregiver outcome measurement tools in a community-based rehabilitation setting post stroke.  ... 
doi:10.1161/01.str.0000438095.11293.72 fatcat:wuapkkr73zcvbga266lrkjwdwy

Abstracts: 6th World Congress of the international society of Physical and Rehabilitation Medicine in June 12-16, 2011, San Juan, Puerto Rico

I (ISPRM)
2011 Journal of Rehabilitation Medicine  
ACTION OBSERVATION IN STROKE PATIENTS: INVESTIGATING THE NEUROPHySIOLOGICAL EFFECTS USING EEG  ...  Moreover Robot-based therapies could augment connectivity between motor areas(primary motor cortex, supplementary motor area, and cerebellum) to compensate primary motor cortex dysfunction after stroke  ...  We recorded the EEG from the primary motor cortex during motor imagery involving extending the affected fingers, and electromyogram (EMG) activities from the affected extensor digitorum communis (EDC).  ... 
doi:10.2340/16501977-0842 fatcat:kagqucdnuncvljk535slbn3wve

Neural correlates of covert and overt movements investigated by EEG/EMG with implications for brain-computer interfacing [article]

Friederike U. Hohlefeld, Universitätsbibliothek Der FU Berlin, Universitätsbibliothek Der FU Berlin
2011
The present thesis investigates neural correlates of covert movements, i.e., motor imagery and the novel phenomenon quasi-movements, and overt movement execution in the human brain utilizing electroencephalography  ...  Here communication and mobility can be (partially) restored with the help of a brain-computer interface (BCI) which, e.g., is operated via motor imagery.  ...  can be best achieved by joined efforts of both, the brain and the mind sciences. In this sense I would like to thank my supervisors, Prof. Dr. Gabriel Curio and Prof. Dr. Arthur M.  ... 
doi:10.17169/refubium-10445 fatcat:pslajz6725gjhg7irexbhnkida

Near infrared spectroscopy based functional neuroimaging: neural correlates and applications in neuro-rehabilitation [article]

Ali Danish Zaidi, Universitaet Tuebingen, Rosenstiel, Wolfgang (Prof. Dr.)
2021
and neurofeedback in humans in four studies.  ...  To test the feasibility of using epidural fNIRS with concomitant extracellular electrophysiology, in our first study we recorded neuronal and hemodynamic activity from the primary visual cortex of two  ...  Acknowledgements We would like to thank Matthias Munk, Cristina Risueno and Rebekka Bernard for help during the collection of data, and Mirsat Memej and Eduard Krampe for their help during the design and  ... 
doi:10.15496/publikation-60842 fatcat:spegpj2bnraq3ijvsomgneb53u

Final Program 2016 Mid-Year Meeting International Neuropsychological Society July 6–8, 2016 London, England

2016 Journal of the International Neuropsychological Society  
The Numerical Stroop Task helps detect subtle decline in  ...  However, on the SOT, only those in the Active group showed significant improvement from baseline. fMRI showed significant blood oxygen-level dependent (BOLD) signal-changes in the primary motor cortex  ...  Ranjeev Bhangoo, Marco Catani Objective: The pre-Supplementary Motor Area (pre-SMA) is often considered an area linked to motor functions.  ... 
doi:10.1017/s1355617716001181 fatcat:7z6k6i6pazcufdcf6qtzphi6bq

Advanced EEG signal processing with applications in brain-computer interfaces

Irina-Emilia Nicolae, Technische Universität Berlin, Technische Universität Berlin, Dan Alexandru Stoichescu, Benjamin Blankertz
2019
The investigation is performed through two experimental studies, where the first one proposes improved stimuli and tasks regarding users' interests and preferences in a motor-imagery-based BCI.  ...  Erstere untersucht verbesserte Stimuli und Aufgabenstellungen bezüglich der Nutzerinteressen in einem motor-imagery basierten BCI.  ...  boredom effects in a motor imagery based BCI and to improve efficiency such as detecting faster a motor imagery task.  ... 
doi:10.14279/depositonce-8301 fatcat:g4vzhgmidrfl5fere5a6llyrkq