Abstract :
In seven four-page notes, a variety of medical applications are described for recording systems equipped with biopotential electrodes and signal conditioning couplers. Techniques explained in one of the notes concern measurements of eye motion and velocity, using electrodes taped to various positions on the face. The other notes cover techniques for measuring esophagus pressure and swallowing activity, skin conductance, and peripheral pulse. Respiration recording from belt and photoelectric transducers is described, as is a cardiotachometer technique. A complete metabolic measurement system that can be used for stress testing and many other physiological tests is also described.