A simple eight-step scale was developed to indicate the degree of independence the student displayed in using a device. This scale enabled the staff to track progress over trials. For those students with no motor control of their extremities, the Cyberlink or a head switch was tried. Head switches were mounted on the student's wheel chair and bed. The Cyberlink was used in the classroom only.
Training begins with calibrating the sensors to the student's basal muscle tension.
The software provided with the device enables a computer mouse cursor to move through four directions and to click on and click off. The up-down function is trained by instructing the student to relax their forehead and then to raise their eyebrows. When this is done there is an immediate effect on the monitor. To move the cursor left-right, the student is instructed to look left or right. The click function is accomplished by opening and closing the mouth.