VEGETATIVE SUPPORT OF AUDITORY-MOTOR CHOICE REACTION IN BOYS WITH VISUAL DYSFUNCTIONS
Journal Title: Вісник Одеського національного університету. Біологія - Year 2015, Vol 20, Issue 1
Abstract
Introduction. Visual dysfunctions may cause to changes in the autonomic regulation of the heart rate due chronic social and emotional stress and because of direct influence of reduction visual inputs on higher autonomic centers. Purpose. The purpose of the research is to determine the features of autonomic provision of auditory-motor choice reaction time in 8-12 year old boys with visual dysfunction. Methods. Time- and frequency-domain heart rate variability (HRV) parameters have been studied by 2.5 minutes monitoring ECG in resting state with eyes closed and during the auditory-motor choice reaction time. Participants responded to a 500 Hz pure tone by pressing one mouse right desk button, and responded to a 1kHz pure tone by pressing the left desk button (50% probability for each tone). The comparative analysis of the HRV was performed in boys with congenital (n=22) and obtained (n=27) visual dysfunctions compared to sighted (n=27). Results. HRV parameters at rest and stress were altered only in boys with congenital visual dysfunction compared with sighted boys: boys with congenital vision dysfunction have a decreasing of Mean in resting state and decreasing of Mean, Mo, ΔX, pNN50 and increasing CC1, CC0, LFt during auditory-motor choice reaction time. Auditory-motor choice reaction time in causes a decrease in CC1, TP, LF in sighted boys, a decrease in CC1 in boys with obtained vision dysfunction and decrease in Mo, TP, HF and increase in AMo, VLFt in boys with congenital vision dysfunction. Conclusion. Boys with congenital visual dysfunction characterized by increased autonomic reactivity and decreased functional reserves of the autonomic regulation
Authors and Affiliations
I. V. Redka
Keywords
Related Articles
- EP ID EP311033
- DOI 10.18524/2077-1746.2015.1(36).56935
- Views 86
- Downloads 0
THE INTER-ANNUAL CHANGES OF THE QUANTITATIVE AND BIOMASS INDICES OF MUSSELS MYTILUS GALLOPROVINCIALIS Lam. AND MYTILASTERS MYTILASTER LINEATUS Gmel. IN THE PERIPHYTON SETTLEMENTS NEAR ODESA COAST OF THE BLACK SEA
The inter-annual dynamics of the abundance and the biomass of mussels Mytilus galloprovincialis (Lamarck, 1819) and mytilasters Mytilaster lineatus (Gmelin, 1791) in the periphyton settlements on the concrete traverses i...
BІOMORFOLOGІCHNA STRUCTURE OF FLORA OF THE DNІSTER – TILІGUL INTERFLUVE
The analysis of biomorphological structure of flora is possible to set the features of ecological terms of the particular region. On the basis of floristic researches in the period of 2001 –2014 inthe lower reaches of th...
SOME BIOLOGICAL FEATURES OF PARDOSA LUGUBRIS (WALCKENAER, 1802) (ARANEI, LYCOSIDAE) IN ODESA REGION
Spider Pardosa lugubris (Walkenaer, 1802) is one of mass species, however, data about phenology of this spider on the territory of Odesa region (period of occurrence of sexually mature females, size of cocoon, quantity o...
ADAPTABILITY OF DROSOPHILA MELANOGASTER UNDER CONDITIONS OF ADDING PREUROTUS OSTREATUS TO NUTRIENT MIXTURE
Problem Prospective is the study of such an artificially grown Basidiomycete as Pleurotus ostreatus, which has pronounced antibacterial, antiviral and antioxidant activity, neuroprotective and antitumor effect. Drosophil...
ANALYSIS OF THE SOZOPHYTES OF THE CHYGRYNSKYI RAVINE (ODESA REGION, UKRAINE)
Steppe biome is practically destroyed in Ukraine. Therefore, areas with steppe plants should be taken under special protection. During 2013-2016 the authors studied flora in Chygrynskyi Ravine, which covers an area of ab...