eISSN: 2354-0265
ISSN: 2353-6942
Health Problems of Civilization Physical activity: diseases and issues recognized by the WHO
Current issue Archive Online first About the journal Editorial board Reviewers Abstracting and indexing Subscription Contact Instructions for authors Ethical standards and procedures
Editorial System
Submit your Manuscript
 
1/2014
vol. 8
 
Share:
Share:
more
 
 
abstract:

FEATURES OF THE CORTICAL ACTIVITY OF MEN HAVING A HIGH OR LOW ALPHA-FREQUENCY BACKGROUND OF THE EEG WHILE PERFORMING ALTERNATE FINGER MOVEMENTS

Alevtyna Morenko
,
Anatolij Tsos
,
Ichor Kotsan

Health Problems of Civilization 1 (8), p. 24-31
Online publish date: 2016/01/13
View full text
Get citation
ENW
EndNote
BIB
JabRef, Mendeley
RIS
Papers, Reference Manager, RefWorks, Zotero
AMA
APA
Chicago
Harvard
MLA
Vancouver
 
PlumX metrics:
The purpose of this paper is to identify the cerebral electrical activity features in men with a high or low or-frequency background while performing the alternate finger movements. A test group consisting of 104 healthy men from the ages of 19 to 21 was divided into two groups according to the magnitude of their individual 01- frequency (IAF] median — groups with high [n = 53, IAF 2 10,04 Hz) and low (n = S1, IAF 5 10,03 Hz] levels of IAF. Changes in power and the coherence of the EEG oscillations during the alternate finger movements as well as intergroup differences were evaluated. Men with high a IAF are distinguished by higher rates of speed and accuracy in terms of their sensory-motor response. The role of inhibitory neural processes increases in the case of men whose frequencies are low. The implementation of alternating finger movements in male groups is accompanied by a decrease in the coherence of θ-, α1-, α3- EEG oscillations in the cortex in general, β- and γ-activity - in the rear temporal and occipital areas. In the frontal and central lobes of α2-, β- and γ- ranges an increase in EEG coherence fluctuations was observed. The power of θ-, α- and β1- waves, especially in the posterior cortex areas, decreases. A larger degree of low-frequency fluctuations in EEG power can be observed in the frontal area. Thus, more economical brain processes providing the processing of any sensory or motor information in men with a high IAF determine higher levels of the speed and accuracy of their sensorimotor responses. Men with a low IAF have lower ductility but a higher voltage of brain processes correlated with a decrease in the sensorimotor response of speed capabilities increasing the role of inhibitory effects.
keywords:

power, coherency, electroencephalogram, individual alpha-frequency, alternate movements by fingers

Quick links
© 2023 Termedia Sp. z o.o.
Developed by Bentus.