A BMI-based occupational therapy assist suit: asynchronous control by SSVEP
Identifieur interne : 001E44 ( Pmc/Corpus ); précédent : 001E43; suivant : 001E45A BMI-based occupational therapy assist suit: asynchronous control by SSVEP
Auteurs : Takeshi Sakurada ; Toshihiro Kawase ; Kouji Takano ; Tomoaki Komatsu ; Kenji KansakuSource :
- Frontiers in Neuroscience [ 1662-4548 ] ; 2013.
Abstract
A brain-machine interface (BMI) is an interface technology that uses neurophysiological signals from the brain to control external machines. Recent invasive BMI technologies have succeeded in the asynchronous control of robot arms for a useful series of actions, such as reaching and grasping. In this study, we developed non-invasive BMI technologies aiming to make such useful movements using the subject's own hands by preparing a BMI-based occupational therapy assist suit (BOTAS). We prepared a pre-recorded series of useful actions—a grasping-a-ball movement and a carrying-the-ball movement—and added asynchronous control using steady-state visual evoked potential (SSVEP) signals. A SSVEP signal was used to trigger the grasping-a-ball movement and another SSVEP signal was used to trigger the carrying-the-ball movement. A support vector machine was used to classify EEG signals recorded from the visual cortex (Oz) in real time. Untrained, able-bodied participants (
Url:
DOI: 10.3389/fnins.2013.00172
PubMed: 24068982
PubMed Central: 3779864
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