[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.
Department of Normal Physiology; Department of Physics, Biophysics and Cybernetics; Tbilisi State Medical University, Georgia.
J
J
Nachkebia
I
I
Kvachadze
A
A
Tsibadze
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