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Clin EEG Neurosci. 2017 Nov;48(6):403-412. doi: 10.1177/1550059417717398. Epub 2017 Jul 5.

High-Intensity Chronic Stroke Motor Imagery Neurofeedback Training at Home: Three Case Reports.

Author information

1
1 Neuropsychology Lab, Department of Psychology, European Medical School, University of Oldenburg, Oldenburg, Germany.
2
2 Department of Experimental Psychology, University of Oxford, Oxford, UK.
3
3 Cluster of Excellence Hearing4all, University of Oldenburg, Oldenburg, Germany.
4
4 Research Center Neurosensory Systems, University of Oldenburg, Oldenburg, Germany.
5
5 Brain and Behaviour Research Group, School of Psychology, University of Surrey, Guildford, UK.

Abstract

Motor imagery (MI) with neurofeedback has been suggested as promising for motor recovery after stroke. Evidence suggests that regular training facilitates compensatory plasticity, but frequent training is difficult to integrate into everyday life. Using a wireless electroencephalogram (EEG) system, we implemented a frequent and efficient neurofeedback training at the patients' home. Aiming to overcome maladaptive changes in cortical lateralization patterns we presented a visual feedback, representing the degree of contralateral sensorimotor cortical activity and the degree of sensorimotor cortex lateralization. Three stroke patients practiced every other day, over a period of 4 weeks. Training-related changes were evaluated on behavioral, functional, and structural levels. All 3 patients indicated that they enjoyed the training and were highly motivated throughout the entire training regime. EEG activity induced by MI of the affected hand became more lateralized over the course of training in all three patients. The patient with a significant functional change also showed increased white matter integrity as revealed by diffusion tensor imaging, and a substantial clinical improvement of upper limb motor functions. Our study provides evidence that regular, home-based practice of MI neurofeedback has the potential to facilitate cortical reorganization and may also increase associated improvements of upper limb motor function in chronic stroke patients.

KEYWORDS:

home-based training; mobile EEG; motor imagery; neurofeedback; neurorehabilitation; stroke

PMID:
28677413
DOI:
10.1177/1550059417717398
[Indexed for MEDLINE]

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