An evaluation of the physiological effects of CRT displays on computer users

An experiment was conducted to measure and compare the physiological effect s of three types of CRT on users. We proposed a new strategy for measuring the user's level of relaxation. In this strategy, called "Task Break Monito ring (TBM)," the subjects took a break with eyes closed after each interact ion with the computer. During each break, electroencephalogram (EEG), espec ially alpha 1 waves, electrocardiogram (ECG) and galvanic skin resistance ( GSR) were monitored and recorded. The results show that the type of CRT dis play which emits far-infrared rays modulated by a FIR-fan induce less fatig ue in users while they are working and reduce the recovery time after the t ask was completed. We believe "TBM" to be an important innovation in human computer research and development because the after effects of computer use have an obvious bearing on recovery time, user endurance and psychological attitude to the technology in general etc.