论文信息 - A Hybrid Control of a P 300-Based BCI : a Solution to Improve System Usability ?

A Hybrid Control of a P 300-Based BCI : a Solution to Improve System Usability ?

A P300 based BCI system was designed to control an assistive technology software (Riccio et al., 2011). Subsequently a hybrid (electromyographic, EMG) control devoted to the correction of spelling errors was introduced in it. The hybrid version of such system would provide severly disabled end-users with a way to exploit not otherwise functionally reliable residual muscular activity. Eight healthy subjects and two severly motor impaired end-users participated to the system testing. Preliminary findings are in favour of the superiority in efficiency of the hybrid control with respect to the no-hybrid (only BCI-based) as indicated by the observed improvement of the performance (expressed as time for selction and percent of errors) that was associated with a decrease of the system usage frustration perceived by the users.

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