Psychophysiological Studies of the Effects of Auditory Rhythmic Stimulation on Subjective Time Counting and Performance Speed in Cognitive Tasks

Studies of the effects of auditory rhythmic stimulation of different frequencies on psychophysiological and neurophysiological aspects of a number of cognitive processes are reported. These experiments showed that rhythmic stimulation at 0.75 Hz decreased motor reaction times in solving cognitive tasks as compared with rhythmic stimulation at 1.25 Hz and task solution without rhythmic stimulation. Subjective assessments of the durations of series also decreased. Slow rhythmic stimulation also led to decreases in the power of the alpha rhythm and increases in the amplitude of the P300 component in the right frontal, central, and parietal areas.