Abstract
The on-line and off-line parallel information processing systems for rat's long-term locomotor activity, electroencephalogram, electrooculogram and electromyogram are proposed in this study. They provide the users with many functions, which will help them to study the sleep pattern, biological rhythms and bioassay etc. To use the on-line information processing system, which mainly determines the physiological state of the rate in real-time, it is only necessary to set some parameters which will determine the operational conditions, such as date, starting time, data sampling interval, unit processing time and duration of unit experimental procedure. Every process is, then, performed automatically and all the necessary data for off-line processing, which can equivalently perform on-line processing under different conditions and make statistical analysis, are stored in a disk file simultaneously. In addition to these, by automatic calculation of the proper reference values used for calculating ratios, logical combinations of which determine the physiological state in advance or when necessary, even during the determination process of physiological state, misdetermination caused by the differences of individual rats, operation technique of implanting electrodes and their gradual displacement can be avoided. Some experiments are also carried out to verify the proposed data processing systems.
