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Source: Clinical Neurophysiology
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Total 39 results found since Jan 2013.
EP 2. Pyramidal tract FA predicts motor outcome in subacute stroke patients after a three week period of arm ability training for ADL-relevant hand motor tests
Outcome prediction after motor stroke for the acute to subacute phase can be consulted for individual therapy modification. For the outcome of severely impaired patients the intactness of the pyramidal tract descending from the lesioned hemisphere (ipsilesional; i) has been described as an important parameter for upper limb strength as a measure of motor outcome (Stinear et al., 2012). In addition, in chronic stroke fractional anisotrophy (FA) of the pyramidal tract is predictive for hand motor impairment in strength (Lindenberg et al., 2010).
Source: Clinical Neurophysiology - August 5, 2016 Category: Neuroscience Authors: M. Domin, S. Roschka, U. Horn, T. Platz, M. Lotze Tags: ePoster Presentations – Stroke Source Type: research
P 172. Focal tDCS in Chronic Stroke patients: A pilot study of physiological effects using TMS and concurrent EEG
We report results of MEPs, EEG, and motor behavior. We show, for the first time, that tDCS and EEG recording can be concurrently applied in stroke patients. Bilateral M1 stimulation using small Ag/AgCl electrodes is well tolerated and can augment corticospinal excitability in the affected hemisphere. In the literature, there is only one prior studying using concurrent EEG recording during cathodal tDCS in healthy subjects and two patients with epileptic encephalopathy (Faria et al., 2012). As far as we know, no studies have applied tDCS simultaneous with EEG recording in chronic stroke patients. We report the first study i...
Source: Clinical Neurophysiology - September 1, 2013 Category: Neuroscience Authors: D. Boratyn, G. Ruffini, M. Cortes, A. Rykman, A. Medeiros, A. Pascual-Leone, D. Edwards Tags: Society Proceedings Source Type: research
Reply to “The effects of functional electrical stimulation on upper extremity function and cortical plasticity in chronic stroke patients”
I appreciate the very important and developed suggestions by Dr. Cecatto for our article (). The proposals on the reasons why EMG-controlled FES (EMG–FES) could shift the brain hemispheric-dominant perfusion in our study provided our study further development and progress. The motor output and corresponding muscle and joint proprioceptive feedback may be tightly coupled and coordinated with movement by EMG–FES. As Dr. Cecatto proposed, these neural reorganisation mechanisms should be explored. The sensory components of large afferent fibre activation, proprioceptive input and increased cognitive sensory attention are a...
Source: Clinical Neurophysiology - February 10, 2014 Category: Neuroscience Authors: Yukihiro Hara Tags: Letters to the Editor Source Type: research
P 114. Anodal transcranial direct current stimulation in early treatment of post-stroke non-fluent aphasia
Conclusions: The findings provide only a weak evidence of A-tDCS behavioural gains during early neurorehabilitation of post-stroke aphasia. Further research is needed to investigate the effectiveness of this kind of neuromodulation. Different modes and parameters of tDCS should be explored considering such important factors determining recovery from aphasia as type and severity of language impairment, lesion site and size, time since stroke, and degree of hemispheric language laterality.
Source: Clinical Neurophysiology - September 1, 2013 Category: Neuroscience Authors: K. Polanowska, M. Leśniak, J. Seniów Tags: Society Proceedings Source Type: research
Neuromagnetic beta and gamma oscillations in the somatosensory cortex after music training in healthy older adults and a chronic stroke patient
Conclusions: The proposed stimulation paradigm captures the integrity of primary somatosensory hand representation. Source position and synchronization between the stimuli and gamma activity are indices, sensitive to music-supported training. Responsiveness was also observed in a chronic stroke patient, encouraging for the music-supported therapy. Notably, changes in somatosensory responses were observed, even though the therapy did not involve specific sensory discrimination training.Significance: The proposed protocol can be used for monitoring changes in neuronal organization during training and will improve the underst...
Source: Clinical Neurophysiology - December 2, 2013 Category: Neuroscience Authors: Shahab Jamali, Takako Fujioka, Bernhard Ross Tags: Sensation, Central Sensory Pathways and their Disorders Source Type: research
IS 27. Brain stimulation in stroke therapy
Non-invasive brain stimulation has shown its potential to modulate brain plasticity and enhance the effects of training in humans (Zimerman et al., Ann Neurol; 2012). Endeavour has been made to utilize brain stimulation in neurological diseases to enhance adaptive processes and prevent potential maladaptive ones. First studies presented evidence that non-invasive brain stimulation might not only transiently improve functions of the paretic hand, but can also modulate processes of learning (Zimerman et al., Stroke; 2012), a basis to achieve longer lasting effects. Based on this enhancement of functional recovery of both, se...
Source: Clinical Neurophysiology - September 1, 2013 Category: Neuroscience Authors: F.C. Hummel Tags: Society Proceedings Source Type: research
Priming sensorimotor cortex to enhance task-specific training after subcortical stroke
Conclusion: Primary motor cortex iTBS not only modulates M1 corticospinal excitability but also increases M1 receptiveness to sensory input.Significance: Priming with iTBSiM1 may enhance ipsilesional sensorimotor integration and facilitate better quality sensorimotor training after subcortical stroke.
Source: Clinical Neurophysiology - December 23, 2013 Category: Neuroscience Authors: Suzanne J. Ackerley, Cathy M. Stinear, P. Alan Barber, Winston D. Byblow Tags: Neural Plasticity, Functional Adaptation and Recovery Source Type: research
9. Brain network modulation following motor imagery BCI-assisted training after stroke
To evaluate the influence of Motor Imagery (MI) training assisted via Brain Computer Interface (BCI) on brain network organization in subacute stroke patients. We analyzed EEG-derived brain networks estimated before and after two training strategies (with and without BCI support); correlations between connectivity indices and clinical improvement were performed. Twenty-eight subacute stroke patients were enrolled and assigned to two groups: 14 patients underwent a one-month motor imagery (MI) training supported by a sensorimotor–based BCI (BCI group) while 14 underwent a similar MI training without BCI support (CTRL group).
Source: Clinical Neurophysiology - December 13, 2014 Category: Neuroscience Authors: F. Pichiorri, M. Petti, G. Morone, M. Molinari, L. Astolfi, F. Cincotti, M. Inghilleri, D. Mattia Source Type: research
O204 Simultaneous bi-hemispheric repetitive transcranial magnetic stimulation for upper limb motor recovery in chronic stroke: A double blind placebo controlled study
repetitive transcranial magnetic stimulation (rTMS) is a promising intervention for the treatment of post-stroke motor deficits. Since the crucial role of non-primary motor cortices and contralesional brain areas is emerging for motor recovery in chronic stroke; we assessed safety and efficacy of bilateral rTMS over the motor areas associated to physical training (PT) on upper extremity (UE) motor function.
Source: Clinical Neurophysiology - August 17, 2017 Category: Neuroscience Authors: Raffaella Chieffo, Giuseppe Scopelliti, Mario Fichera, Giovanni Di Maggio, Roberto Santangelo, Simone Guerrieri, Elise Houdayer, Abraham Zangen, Giancarlo Comi, Letizia Leocani Source Type: research
S185 The effect of bilateral arm training on motor areas excitability in chronic stroke patients
Physical therapy exercises that do not enhance motor areas neuroplasticity lead to motor impairment especially at the upper extremity (UE) in the chronic stroke patients. The aim of this study was to assess the effect of using bilateral arm training on motor areas excitability (neuroplasticity) in the chronic stroke patients.
Source: Clinical Neurophysiology - August 17, 2017 Category: Neuroscience Authors: Walaa Ragab, Moshera Darwish, Mohamed El Tamawy, Ann Abdel Kader Source Type: research
P60. Direct and long term influence of cardiovascular training on cognition in subacute stroke patients
Rehabilitation of cognitive deficits has been voted ‘#1 research priority’ for patients suffering from stroke (Saunders et al., 2014). Aerobic fitness training may modulate cognitive performance either by enhancing neuroplasticity or by increasing brain oxygenation. The majority of studies in this area have focused on motor function; its effect o n cognitive performance is not well understood yet. The current study therefore aims to evaluate the influence of aerobic fitness intervention on cognitive functions in subacute stroke patients, and tries to elucidate the mechanisms underlying this effect.
Source: Clinical Neurophysiology - July 10, 2018 Category: Neuroscience Authors: T. Rackoll, A. Nave, U. Grittner, H. Mousa, K. Villringer, M. Ebinger, A. Fl öel Source Type: research
EP 10. Home-based motor imagery training in chronic stroke supported by neurofeedback: A feasibility study
Chronic hemiparesis of an upper limp following stroke has been related to an over-involvement of the ipsilateral hemisphere that inhibits use of the affected limb. Interventions helping to shift back this altered lateralization have been suggested to positively affect upper limp functional recovery. One such intervention is the combination of motor imagery (MI) supported by EEG neurofeedback. However, cortical reorganization requires highly intensive practice. In this feasibility study this was achieved by implementing a mobile EEG neurofeedback system.
Source: Clinical Neurophysiology - August 5, 2016 Category: Neuroscience Authors: C. Kranczioch, C. Zich, C. Schweinitz, J. Meekes, S. Debener Source Type: research
