Microcomputer Simulations of Laboratory Experiments in Physiology

Abstract

Three interactive computer-assisted learning programs based on simulations of simple experiments in physiology (frog sciatic nerve, frog sciatic nerve-gastrocnemius muscle and frog heart) are described. The programs use experimental data to generate realistic, high-resolution graphic simulations of results and present these either on a simulated oscilloscope or on a continuously scrolling display to simulate a chart recorder. Students can thus conduct an experiment and take measurements directly from the monitor, as they would in the real situation. The programs fulfil most of the main objectives of practical physiology teaching and offer an alternative to animal experiments. They are most suitable either for students of biology and health-related subjects, where physiology is an essential component but dissection and tissue handling skills are of minor importance, or in institutions (for example schools, and colleges of further education) where animal experiments are not permitted or the expensive equipment or technical expertise required are lacking. The feasibility of using computer simulation programs to replace animal experiments in teaching is discussed in relation to the teaching objectives of practical physiology classes.