Home used, patient self-managed, brain-computer interface for the management of central neuropathic pain post spinal cord injury: usability study.
J Neuroeng Rehabil
; 16(1): 128, 2019 10 30.
Article
em En
| MEDLINE
| ID: mdl-31666096
ABSTRACT
BACKGROUND:
Central Neuropathic Pain (CNP) is a frequent chronic condition in people with spinal cord injury (SCI). Previously, we showed that using laboratory brain-computer interface (BCI) technology for neurofeedback (NFB) training, it was possible to reduce CNP in people with SCI. In this study, we show results of patient self-managed treatment in their homes with a BCI-NFB using a consumer EEG device.METHODS:
Users People with chronic SCI (17 M, 3 F, 50.6 ± 14.1 years old), and CNP ≥4 on a Visual Numerical Scale. LOCATION Laboratory training (up to 4 sessions) followed by home self-managed NFB. User Activity Upregulating the EEG alpha band power by 10% above a threshold and at the same time downregulating the theta and upper beta (20-30 Hz) band power by 10% at electrode location C4. Technology A consumer grade multichannel EEG headset (Epoch, Emotiv, USA), a tablet computer and custom made NFB software. EVALUATION EEG analysis, before and after NFB assessment, interviews and questionnaires.RESULTS:
Effectiveness Out of 20 initially assessed participants, 15 took part in the study. Participants used the system for 6.9 ± 5.5 (median 4) weeks. Twelve participants regulated their brainwaves in a frequency specific manner and were most successful upregulating the alpha band power. However they typically upregulated power around their individual alpha peak (7.6 ± 0.8 Hz) that was lower than in people without CNP. The reduction in pain experienced was statistically significant in 12 and clinically significant (greater than 30%) in 8 participants. Efficiency The donning was between 5 and 15 min, and approximately 10-20% of EEG data recorded in the home environment was noise. Participants were mildly stressed when self-administering NFB at home (2.4 on a scale 1-10). User satisfaction Nine participants who completed the final assessment reported a high level of satisfaction (QUESQ, 4.5 ± 0.8), naming effectiveness, ease of use and comfort as main priorities. The main factors influencing frequency of NFB training were health related issues, free time and pain intensity.CONCLUSION:
Portable NFB is a feasible solution for home-based self-managed treatment of CNP. Compared to pharmacological treatments, NFB has less side effects and provides users with active control over pain. TRIAL REGISTRATION GN15NE124 , Registered 9th June 2016.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Autocuidado
/
Traumatismos da Medula Espinal
/
Interfaces Cérebro-Computador
/
Neuralgia
Limite:
Adolescent
/
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article