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Source: Clinical Neurophysiology
Condition: Disability
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Total 30 results found since Jan 2013.
P63. Detection of error potentials from EEG and MEG recordings and its value for BMI control
Brain-Machine Interfaces (BMIs) can help to regain communication and mobility in severely disabled persons. Especially spelling devices, rehabilitation of stroke patients and prosthesis control are fields of application. However, noninvasive BMIs, commonly using electroencephalography (EEG), suffer from poor signal quality, resulting in erroneous commands. In order to detect such erroneous commands, error potentials (ErrPs) generated in the brain after a user perceived a negative feedback can be decoded.
Source: Clinical Neurophysiology - July 10, 2018 Category: Neuroscience Authors: C. Reichert, N. Heinze, T. Pfeiffer, S. D ürschmid, H. Hinrichs Source Type: research
Quantitative EEG and functional outcome following acute ischemic stroke
Stroke is a leading cause of disability and mortality worldwide, and despite advances in disease prevention, acute treatment and rehabilitation, global stroke burden is expected to rise in the future (Feigin et al. 2017). Early post-stroke prognostication is essential both in the short-term (f. ex. in guiding treatment strategies) and in the long-term (to aid in rehabilitation management, in order to improve recovery and minimize disability). Predictors of stroke disability and associate death consistently include age and clinical / imaging related stroke severity (Adams et al.
Source: Clinical Neurophysiology - June 15, 2018 Category: Neuroscience Authors: Carla Bentes, Ana Rita Peralta, Pedro Viana, Hugo Martins, Carlos Morgado, Carlos Casimiro, Ana Catarina Franco, Ana Catarina Fonseca, Ruth Geraldes, Patr ícia Canhão, Teresa Pinho e Melo, Teresa Paiva, José M Ferro Source Type: research
Stroke causes a transient imbalance of interhemispheric information flow in EEG during Non-REM sleep
Stroke is one of the leading causes of disabilities and represents a major medical and socio-economical burden (Adamson et al., 2004; Global Burden of Disease Study Collaborators, 2015; Ovbiagele et al., 2013). Ischemic strokes account for more than 2/3 of all strokes (Feigin et al., 2009). In the minutes to weeks following the onset of a focal cerebral ischemia, a variety of local but also more distant changes in connectivity occur (Silasi and Murphy, 2014; Xerri et al., 2014). In particular, functional neuroimaging studies have highlighted a “hyperactivity” of the homotopic contralesional region following a unilatera...
Source: Clinical Neurophysiology - April 17, 2018 Category: Neuroscience Authors: Frederic Zubler, Andrea Seiler, Thomas Horvath, Corinne Roth, Silvia Miano, Christian Rummel, Heidemarie Gast, Lino Nobili, Kaspar A. Schindler, Claudio L. Bassetti Source Type: research
Bilateral early activity in the hip flexors associated with Falls in Stroke Survivors: Preliminary evidence from laboratory-induced falls
Stroke is the leading cause of disability in the US with an additional 800,000 incidents occurring each year (CDC, 2012). Falls present a major risk for stroke survivors, 40% of whom experience a serious fall within their first year (Persson et al., 2011). Up to 69% of falls by stroke survivors result in injuries. Despite the importance of the problem, there is surprisingly little information about what factors contribute to falls in stroke survivors. With few exceptions, the literature has focused on relating metrics of post-stroke static balance (where stepping did not occur) and impairment (clinical scores) to fall outc...
Source: Clinical Neurophysiology - November 20, 2017 Category: Neuroscience Authors: Dmitrijs Celinskis, Mark D. Grabiner, Claire F. Honeycutt Source Type: research
Revisiting interhemispheric imbalance in chronic stroke: a tDCS study
The immense burden of stroke-related disability has led to the development of noninvasive brain stimulation (NIBS) as a possible approach to augment neurorehabilitation of the paretic upper limb (Ackerley et al., 2010). Transcranial direct current stimulation (tDCS) is a polarity-dependent neuromodulatory technique that has demonstrated some benefit to motor function at the chronic stage (>6 months) post stroke, but effect sizes have varied (Jacobson et al., 2012; Kang et al., 2015).
Source: Clinical Neurophysiology - October 28, 2017 Category: Neuroscience Authors: Alana B McCambridge, James W Stinear, Winston D Byblow Source Type: research
Corticomuscular coherence in the acute and subacute phase after stroke
Stroke results from critically reduced blood flow to the brain tissue due to bleeding or obstruction of arteries. Globally, stroke remains a major cause of disability despite advances in preventive treatment and in acute management (Hankey, 2017). The most common impairment caused by stroke is motor disability affecting approximately 80% of the patients, most frequently seen as hemiparesis (Langhorne et al., 2009). Spontaneous recovery may occur in the following weeks and months after stroke and can be facilitated through rehabilitation involving exercise (Maulden et al., 2005).
Source: Clinical Neurophysiology - September 22, 2017 Category: Neuroscience Authors: Lisbeth Hoejkjaer Larsen, Ivan Chrilles Zibrandtsen, Troels Wienecke, Troels Wesenberg Kjaer, Mark Schram Christensen, Jens Bo Nielsen, Henning Langberg Source Type: research
P 67 Electrophysiological correlates of language improvements after intensive language therapy in patients with chronic post-stroke aphasia
Aphasia affects approximately one third of all stroke patients and may lead to chronic disability. Effective neurorehabilitation programs focusing on improving speech and language in patients with post-stroke aphasia are essential. A better understanding of the neurobiological processes accompanying language deficits and rehabilitation may bear fruit in the advancement of neurorehabilitation programs.
Source: Clinical Neurophysiology - September 8, 2017 Category: Neuroscience Authors: G. Lucchese, F. Pulverm üller, B. Stahl, F. Dreyer, B. Mohr Tags: Poster Source Type: research
S31 Structurally informed analyses of functional connectivity in stroke
Stroke is the leading cause of disability in industrialized countries, has a big impact on quality of life, and is of high socioeconomic relevance. Despite great advances of acute therapy – like thrombolysis and mechanical thrombectomy – approximately 50% of stroke survivors suffer from permanent neurological deficits, mostly because of structural and functional neural network failure.
Source: Clinical Neurophysiology - August 17, 2017 Category: Neuroscience Authors: Christian Gerloff Source Type: research
tDCS for motor stroke: the relevance of systematic comparisons
The need for adjuvant therapies to enhance motor recovery after stroke is documented by the global incidence of approx. 17 million stroke cases per year, resulting in the leading cause for long-term disability worldwide (Feigin et al., 2014). Electromagnetic brain stimulation protocols have the capacity to induce neuroplasticity non-invasively in cortical areas and have thereby the potential to promote recovery processes. One of the techniques that has raised considerable hope as an adjuvant tool for motor rehabilitation is transcranial direct current stimulation (tDCS) (Buch et al., 2017).
Source: Clinical Neurophysiology - April 25, 2017 Category: Neuroscience Authors: Bernhard Sehm Tags: Editorial Source Type: research
The effect of transcranial direct current stimulation on motor sequence learning and upper limb function after stroke
Stroke is a leading cause of adult disability and many people are left with impairments and are dependent on others for activities of daily living (Dobkin, 2005; DOH, 2007; Veerbeek et al., 2011). Strategies to improve plasticity and enhance motor learning are needed. One potential approach is to use transcranial direct current stimulation (tDCS) to enhance the effect of physical therapy.
Source: Clinical Neurophysiology - March 30, 2017 Category: Neuroscience Authors: Melanie K Fleming, John C Rothwell, Laszlo Sztriha, James T Teo, Di J Newham Source Type: research
Parietomotor connectivity in the contralesional hemisphere after stroke: a paired-pulse TMS study
Stroke is the main cause of acquired disability in adults. Upper limb paresis is one of the most frequent symptoms after stroke; the recovery of upper limb function is often problematic but constitutes a key factor in personal autonomy. Spatial neglect (defined as a failure to acknowledge or explore stimuli towards the contralesional side) (Heilman et al. 2000) is another challenging consequence of stroke, since it slows recovery and impairs activities of daily living (Di Monaco et al. 2011). In fact, spatial neglect is a frequent consequence of lesions in the right hemisphere - especially those affecting the inferior pari...
Source: Clinical Neurophysiology - February 27, 2017 Category: Neuroscience Authors: Etienne Allart, Arnaud Delval, Alexandre Caux-Dedeystere, Julien Labreuche, Romain Viard, Renaud Lopes, Herv é Devanne Source Type: research
Functional and structural cortical characteristics after restricted focal motor cortical infarction evaluated at chronic stage – indications from a preliminary study
Motor disability is among the most common consequences of ischemic stroke. Following focal ischemic damage, the reorganization of the cortical functions begins (Ward and Cohen, 2004). Some initial improvement after the acute phase occurs due to resolution of the perilesional edema and recovery of other tissue functions surviving the ischemia (Hallett, 2001). However, it is thought that the long-term recovery occurs primarily due to brain plasticity through functional and structural reorganization (Hallett, 2001; Hodics et al., 2006).
Source: Clinical Neurophysiology - May 24, 2016 Category: Neuroscience Authors: Petro Julkunen, Sara Määttä, Laura Säisänen, Elisa Kallioniemi, Mervi Könönen, Pekka Jäkälä, Ritva Vanninen, Selja Vaalto Source Type: research
Atypical cortical drive during activation of the paretic and nonparetic tibialis anterior is related to gait deficits in chronic stroke
Following a neurological injury, recovery of lower extremity control and the ability to walk is a primary goal of stroke patients (Bohannon et al. 1991). However, many individuals are left with long term disability of functional ambulation following stroke, despite current standard rehabilitation (Bohannon et al. 1991). Gains in neuroscience research over the last several decades have enhanced our understanding of structural changes in the brain that may underlie functional disability following stroke (Kleim and Jones 2008).
Source: Clinical Neurophysiology - June 18, 2015 Category: Neuroscience Authors: Jacqueline A. Palmer, Alan R. Needle, Ryan T. Pohlig, Stuart A. Binder-Macleod Source Type: research
Multiple sessions of transcranial direct current stimulation and upper extremity rehabilitation in stroke: A review and meta-analysis
Stroke is a health concern worldwide and one of the main causes of disability (Kolominsky-Rabas et al., 2001; Albert and Kesselring, 2012). Motor impairment is the main cause of disability after stroke, leading to major health problems (Boggio et al., 2007; Clarke, 1999). In Europe, stroke costs around 64.1 billion euros and in the United Kingdom, around £8.9 billion per annum is spent on community care and rehabilitation of people with stroke (Saka et al., 2009; Gustavsson et al., 2011). At six months, 33% to 66% of people with Upper Extremity (UE) impairments do not present with functional upper limb function and only 5...
Source: Clinical Neurophysiology - May 4, 2015 Category: Neuroscience Authors: L. Tedesco Triccas, J.H. Burridge, A.M. Hughes, R.M. Pickering, M. Desikan, J.C. Rothwell, G. Verheyden Source Type: research
