Simultaneous neural control of simple reaching and grasping with the modular prosthetic limb using intracranial EEG.

ABSTRACT: Intracranial electroencephalographic (iEEG) signals from two human subjects were used to achieve simultaneous neural control of reaching and grasping movements with the Johns Hopkins University Applied Physics Lab (JHU/APL) Modular Prosthetic Limb (MPL), a dexterous robotic prosthetic arm. We performed functional mapping of high gamma activity while the subject made reaching and grasping movements to identify task-selective electrodes. Independent, online control of reaching and grasping was then achieved using high gamma activity from a small subset of electrodes with a model trained on short blocks of reaching and grasping with no further adaptation. Classification accuracy did not decline (p < 0.05, one-way ANOVA) over three blocks of testing in either subject. Mean classification accur

SUBMITTER: Fifer MS 

PROVIDER: S-EPMC4030429 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature