title: [Heart rhythm in humans with different processing levels of acoustic information].
abstract: The peculiarities of the heart rhythm regulation were investigated in humans during the processing of acoustic information. Statistically significant differences were found in individuals with different levels of auditory-motor reactions according to the heart rhythm characteristics. Individuals with the high level of reactions were characterized by significantly lower total power spectrum (TP=1276.2 ms2), by the power spectrum of high (HL=280.1 ms12) and very low frequencies (VLF-469.8 ms2), as well as by low indexes of standard deviation of R-R intervals (SDNN=37.4 ms), when compared with the persons with the low level of reactions (5248.8; 866.7; 1937.0; 69.8 ms2). The correlation analysis confirmed the dif- ferences between the groups ol persons with adtierent number of processed information and variable (r=0.41, P<0.05) and spectral characteristics of heart rate (r=-0.49--0.56, P<0.05). Different strategies of activation of non-specific brain systems in formation of psycho-physiological reactions and participation of heart rhythm regulatory mechanisms in vegetative support of auditory information processing are discussed.
authors.forename: M V
authors.initials: MV
authors.lastname: Makarenko
authors.forename: V S
authors.initials: VS
authors.lastname: Lyzohub
authors.forename: L I
authors.initials: LI
authors.lastname: Iukhymenko
authors.forename: S M
authors.initials: SM
authors.lastname: Khomenko
mesh_terms: D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D003627:Data Interpretation, Statistical; D004562:Electrocardiography; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D008606:Mental Processes / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology; D055815:Young Adult