A simple ERP method for quantitative analysis of cognitive workload in myoelectric prosthesis control and human-machine interaction.

ABSTRACT: Common goals in the development of human-machine interface (HMI) technology are to reduce cognitive workload and increase function. However, objective and quantitative outcome measures assessing cognitive workload have not been standardized for HMI research. The present study examines the efficacy of a simple event-related potential (ERP) measure of cortical effort during myoelectric control of a virtual limb for use as an outcome tool. Participants trained and tested on two methods of control, direct control (DC) and pattern recognition control (PRC), while electroencephalographic (EEG) activity was recorded. Eighteen healthy participants with intact limbs were tested using DC and PRC under three conditions: passive viewing, easy, and hard. Novel auditory probes were presented at random i

SUBMITTER: Deeny S 

PROVIDER: S-EPMC4234315 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature