Development and application of the 'Sleep Ukiha' automated sleep analysis system

We attempted to develop an automated sleep analysis system that uses a pers onal computer as an aid to the entire sleep research process. Analysis is b ased on electroencephalogram, chin muscle electromyogram and electrooculogr aphy, while other physiological phenomena can be handled arbitrarily. Major characteristics of the system include: (i) simultaneous gathering of physi ological phenomena from up to three patients; (ii) high-speed waveform anal ysis; (iii) user-friendly operating environment through the use of a graphi cal user interface; and (iv) versatile utilization of analytical data in re search.