Brain-computer communication: self-regulation of slow cortical potentials for verbal communication.
Arch Phys Med Rehabil
; 82(11): 1533-9, 2001 Nov.
Article
em En
| MEDLINE
| ID: mdl-11689972
ABSTRACT
OBJECTIVE:
To test a training procedure designed to enable severely paralyzed patients to communicate by means of self-regulation of slow cortical potentials.DESIGN:
Application of the Thought Translation Device to evaluate the procedure in patients with late-stage amyotrophic lateral sclerosis (ALS).SETTING:
Training sessions in the patients' homes.PARTICIPANTS:
Two male patients with late-stage ALS.INTERVENTIONS:
Patients learned voluntary control of their slow cortical potentials by means of an interface between the brain and a computer. Training was based on visual feedback of slow cortical potentials shifts and operant learning principles. The learning process was divided into small steps of increasing difficulty. MAIN OUTCOMEMEASURES:
Accuracy of self-control of slow cortical potentials (percentage of correct responses). Learning progress calculated as a function of training session.RESULTS:
Within 3 to 8 weeks, both patients learned to self-regulate their slow cortical potentials and to use this skill to select letters or words in the Language Support Program.CONCLUSIONS:
This training schedule is the first to enable severely paralyzed patients to communicate without any voluntary muscle control by using self-regulation of an electroencephalogram potential only. The protocol could be a model for training patients in other brain-computer interface techniques.
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Base de dados:
MEDLINE
Métodos Terapêuticos e Terapias MTCI:
Terapias_mente_y_cuerpo
/
Biofeedback
Assunto principal:
Paralisia
/
Interface Usuário-Computador
/
Encéfalo
/
Auxiliares de Comunicação para Pessoas com Deficiência
/
Potenciais Evocados
/
Esclerose Lateral Amiotrófica
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
Arch Phys Med Rehabil
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Alemanha