The Psychomouse
Psychomouse in use
| While working on the computer, most of us must have often wished for the machine to read our brain and move the mouse cursor accordingly rather than we manually moving it with the mouse. CRCS explored the idea and developed Psychomouse, an innovative interface to the computer that uses EEG signals of the brain to control a mouse cursor. |
| The PsychomouseŽ
is a low-cost PC-based device for amplification of electrical activity
of the brain (EEG) as picked-up from the scalp surface. This interface
is designed to serve as a foundation for EEG based human-computer
interaction. EEG as recorded from the surface of scalp is an extremely weak signal (1 to 20 microvolts under normal circumstances), spanning a bandwidth of 0 to 35Hz. Hence, it is extremely susceptible to interference from ambient electrical fields, subject movements and eye-blinks. These problems were overcome in real-time by a combination of electronics and signal processing software and an IEEE conference paper* was written on the same. Further work on the PsychomouseŽ includes development of an EEG server to transmit the digitized EEG signal over TCP/IP network. This project reflects the efforts of CRCS in the area of Human Computer Interfaces. |
| For more details contact: Sanjay Gupta |