[Reaction time to single and double stimuli in operators of mining equipment]

The study was aimed at a comparison of the results of the reaction time for single (light or sound) and double stimuli (simultaneous emission of light and sound) in machine operators. The studies were carried out under laboratory conditions and in the working environment. The obtained data proved that underground, under specific copper mine conditions, similar to laboratory conditions, the theory of "intersensory facilitation" should be applied. The results of our studies can be useful for ergonomic practice.