Facial grimaces generate major
electrical activity (EEG signals) across our heads, and the same happens when
Angel concentrates on a symbol, such as a flashing light, on a computer
monitor. In both cases the electrodes read the activity in the brain. The signals
are then interpreted by a processor which in turn sends a message to the robot
to make it move in a predefined way.
The user can make use of the
movements of the eyes, eyebrows and other parts of their face. Using the
eyebrows they can select which of the robot's joints they want to move. The
user can focus on a selection of lights on the screen. The robot’s movements
depend on which light the user selects and the type of activity generated in the
brain.
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