[Differential description of heart rate regulatory mechanisms of young men at sensory-motor and psychoemotional load during high frequency sound exposure].
The goal of the study was the differential description of the heart rate regulatory mechanisms of young men and productivity of task performance during sensory-motor and psychoemotional load on the background of high frequency (4000-8000 Hz) sound exposure. Analysis of statistical and spectral components of the heart rate variability was done for description of heart rate regulatory mechanisms. Sensory-motor and psychoemotional load was studied with Landolt rings. The study was a community trial and performed by single blind method, on volunteer young men (age 18-22, n=22). From the results of the study it may be concluded that during high frequency sound exposure, quality of sensory-motor and psychoemotional task performance deteriorates. In individuals with initial domination of sympathetic part of vegetative nervous system during high frequency sound exposure and sensory-motor load, sympathetic domination decreases, but during complex tasks of identification and selection, initially dominant sympathetic effects on heart increases, which creates starting conditions for regulatory mechanisms overload mode.
Nachkebia
J
J
Department of Normal Physiology; Department of Physics, Biophysics and Cybernetics; Tbilisi State Medical University, Georgia.
Kvachadze
I
I
Tsibadze
A
A
D000293:Adolescent; D000328:Adult; D004644:Emotions / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D011597:Psychomotor Performance / Q000502:physiology*; D013016:Sound; D013647:Task Performance and Analysis