摘要：In order to analyze whether the use of the cortical activity, estimated from noninvasive EEG
recordings, could be useful to detect mental states related to the imagination of limb movements, we
estimate cortical activity from high-resolution EEG recordings in a group of healthy subjects by
using realistic head models. Such cortical activity was estimated in region of interest associated
with the subject's Brodmann areas by using a depth-weighted minimum norm technique.
Results showed that the use of the cortical-estimated activity instead of the unprocessed EEG
improves the recognition of the mental states associated to the limb movement imagination in the
group of normal subjects. The BCI methodology presented here has been used in a group of
disabled patients in order to give
them a suitable control of several electronic devices disposed in a three-room environment devoted
to the neurorehabilitation. Four of six patients were able to control several electronic devices in this
domotic context with the BCI system.
