[The complexity of the information load, the functional status and the efficiency of operator activities].

Experimental data permit stating that in a wide range of functional state modelled pharmacologically with the use of aminazine, caffeine under conditions of a thrusting tempo of the work an increase in the volume of information presented has induced a decrease in speed, quality and productivity of operator's labour; an increase in tempo of information supply has led to a rise of speed and fall of information processing quality, changes in the labour productivity are subjects to the low of the optimum. It is shown that significance of the functional state for efficient operator's activity grows with complexity of the information load.