A computer-aided physiological monitoring system for continuous, long-term recording of cardiac activity in selected invertebrates

1. A computer-aided physiological monitoring system (CAPMON) is described which permits long-term, continuous recording of cardiac activity in selected crustaceans and molluscs. 2. Infra-red phototransducers used with the system are simple to attach and allow non-invasive measurement of physiological function, thereby minimising disturbance to the test organism. 3. Applications of the CAPMON system in pollution studies and in clinical settings with Man, are discussed.