Control of a hand grasp neuroprosthesis using an electroencephalogram-triggered switch: demonstration of improvements in performance using wavepacket analysis.
Med Biol Eng Comput
; 40(5): 588-93, 2002 Sep.
Article
en En
| MEDLINE
| ID: mdl-12452421
ABSTRACT
Volitionally modulated electroencephalographic (EEG) waves were monitored for the purpose of controlling a hand neuroprosthesis in people with tetraplegia. The region of the EEG signal spectrum monitored was the occipital alpha wave (8-13 Hz), and volitional modulation was achieved with the opening and closing of the eyes. In a set of 13 trials evaluated, a subject with tetraplegia successfully completed ten trials undertaking stimulated grasp and release using the EEG-triggered switch. EEG signal data recorded during the 13 trials were also post-processed off-line using wavepacket analysis. Following this signal processing, the speed and reliability of the EEG-triggered switch, when operated by the subject with tetraplegia, was significantly improved (p < 0.002). Such improvements provide system performance that is likely to be acceptable to a neuroprosthesis user during activities of daily life.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Prótesis e Implantes
/
Cuadriplejía
/
Fuerza de la Mano
Límite:
Humans
Idioma:
En
Revista:
Med Biol Eng Comput
Año:
2002
Tipo del documento:
Article
País de afiliación:
Australia