B. EEG CONTROL
The electroencephalogram (EEG) is the study of brain
function that reflects the brain's electrical activity. To collect
brain electrical signal, electrodes placed on the scalp. EEG is
used in medical field to diagnose and manage epilepsy and
other diseases that affect brain function. However
researchers have also used EEG to improve controls
wheelchairs techniques severely disabled persons.
Tanaka et al. were the first to offer an electric wheelchair
with a direction of movement controlled by the mind [16].
The BMI (Brain Machine Interface) type used is a non
invasive asynchronous based on the analysis of spontaneous
EEG. During the learning phase, it is required from the user
to imagine the moving of the chair to the right or to the left
for 20 seconds, and 5 times side. The average success rate is
80% for all users.