A Computer Based Control System For Cardiac Neural Stimulation Experiments

Cardiac neural control experiments require a system that can extract features, such as an atrial activation, from the cardiac signals and respond to this event. The system built to fulfill these requirements is based on an AT compatible personal computer. External hardware used in conjunction with the computer includes some analog electronics, analog-to-digital converters, a real-time clock, and an interrupt manager/controller. The present form of the system can handle four interrupt generating devices via one parallel port. Physiological features are detected automatically so that interventions can be manipulated more efficiently during neural stimulation experiments.