Changes of spectral EEG parameters in normals at two week follow-up

The site of the Media Sphera Publishers contains materials intended solely for healthcare professionals.
By closing this message, you confirm that you are a certified medical professional or a student of a medical educational institution.

Search result: 0

Polunina A.G.

Moskovskiĭ nauchno-prakticheskiĭ tsentr narkologii

Lefterova N.P.

Begachev A.V.

Changes of spectral EEG parameters in normals at two week follow-up

Authors:

Polunina A.G., Lefterova N.P., Begachev A.V.

More about the authors

Journal: S.S. Korsakov Journal of Neurology and Psychiatry. 2011;111(2): 64‑71

Read: 770 times

Download PDF (RU)

Contact the author

Table of contents

To cite this article:

Polunina AG, Lefterova NP, Begachev AV. Changes of spectral EEG parameters in normals at two week follow-up. S.S. Korsakov Journal of Neurology and Psychiatry. 2011;111(2):64‑71. (In Russ.)

Подписка 2026 Журнал неврологии и психиатрии им. С.С. Корсакова (S.S. Korsakov Journal of Neurology and Psychiatry)

Использование инфографики авторами научных работ

Close metadata

Recommended articles:

A comparative assessment of neurochemical and neurophysiological parameters of cardiac surgery patients who underwent different versions of multitasking cognitive training. S.S. Korsakov Journal of Neurology and Psychiatry. 2024;(12):62-68

Indicators of the background spectral power of the EEG in patients with alcohol dependence complicated by exogenous organic brain disease. S.S. Korsakov Journal of Neurology and Psychiatry. 2025;(1):112-118

Abstract:

Computer EEG is commonly used in longitudinal clinical studies though physiological changes of electrical brain activity during repeated EEG recordings are poorly known. Resting eyes-closed EEG was recorded twice in two weeks in 14 healthy subjects (13 women, aged 25-69 years). At follow-up, the significant decrease of alpha and theta-2 power, along with changes of alpha-1 and alpha-2 mean frequencies in the right hemisphere, was observed. In addition, the increase of delta-2, theta and beta power was prominent in the left temporal region in the combination with slowing of delta-1 mean frequency in the left hemisphere and theta-2 frequency in the temporal regions. The present results reveal that physiological changes of brain electrical activity at repeated recordings are prominent and this fact should be correctly treated during longitudinal clinical studies using EEG.

Keywords:

brain electrical activity

alpha activity

delta activity

theta activity

Authors:

Polunina A.G.

Moskovskiĭ nauchno-prakticheskiĭ tsentr narkologii

Lefterova N.P.

Begachev A.V.

Close metadata

References:

Polunina A.G., Bryun E.A. Intellekt i bioelektricheskaya aktivnost' golovnogo mozga u detei: vozrastnaya dinamika v norme i pri sindrome defitsita vnimaniya s giperaktivnost'yu. Rus zhurn det nevrol 2010; 5: 2: 3-16.
Angelakis E., Lubar J.F., Stathopoulou S., Kounios J. Peak alpha frequency: an electroencephalographic measure of cognitive preparedness. Clin Neurophysiology 2004; 115: 887-897.
Başar E., Başar-Eroglu C., Karakaş S., Schürmann M. Gamma, alpha, delta, and theta oscillations govern cognitive processes. Int J Psychophysiology 2001; 39: 241-248.
Beason-Held L.L., Kraut M.A., Resnick S.M. Stability of default-mode network activity in the aging brain. Brain Imaging and Behavior 2003; 3: 2: 123-131.
Cantero J., Atienza M., Salas R.M. Human alpha oscillations in wakefulness, drowsiness period, and REM sleep: different electroencephalographic phenomena within the alpha band. Neurophysiol Clin 2002; 32: 54-71.
Corsi-Cabrera M., Galindo-Vilchis L., del-Rio-Portilla Y. et al. Within-subject reliability and inter-session stability of EEG power and coherent activity in women evaluated monthly over nine months. Clin Neurophysiology 2007; 118: 9-21.
Fernandez T., Harmony T., Rodriguez M. et al. Test-retest reliability of EEG spectral parameters during cognitive tasks: I. Absolute and relative power. Int J Neurosci 1993; 68: 3-4: 255-261.
Fründ I., Schadow J., Busch N.A. et al. Evoked γ oscillations in human scalp EEG are test-retest reliable. Clin Neurophysiology 2007; 118: 221-227.
Harmony T., Fernandez T., Gersenowies J. et al. Specific EEG frequencies signal general common cognitive processes as well as specific task processes in man. Int J Psychophysiology 2004; 53: 207-216.
Kondakor I., Brandeis D., Wackermann J. et al. Multichannel EEG fields during and without visual input frequency domain model source locations and dimensional complexities. Neuroscience Letters 1997; 226: 49-52.
Leuthardt E.C., Schalk G., Wolpaw J.R. et al. A brain-computer interface using electrocorticographic signals in humans. J Neural Eng 2004; 1: 63-71.
Marosi E., Rodriguez H., Harmony T. et al. Broad band spectral EEG parameters correlated with different IQ measurements. Int J Neurosci 1999; 97: 17-27.
Petsche H., Kaplan S., Von Stein A., Filz O. The possible meaning of the upper and lower alpha frequency ranges for cognitive and creative tasks. Int J Psychophysiol 1997; 26: 77-97.
Polunina A.G., Davydov D.M. EEG correlates of Wechsler Adult Intelligence Scale. Int J Neurosci 2006; 116: 10: 1231-1248.
Porjesz B., Almasy L., Edenberg H.J. et al. Linkage disequilibrium between the beta frequency of the human EEG and a GABAA receptor gene locus. PNAS 2002; 99: 6: 3729-3733.
Thatcher R.W., North D., Biver C. EEG and intelligence: relations between EEG coherence, EEG phase delay and power. Clin Neurophysiol 2005; 116: 9: 2129-2141.
Von Stein A., Sarntheim J. Different frequencies for different scales of cortical integration. From local gamma to long-range alpha/theta synchronization. Int J Psychophysiol 2000; 38: 301-313.

Log in to the site using your account in one of the services

Registration

Last Name

Name

Middle Name

E-mail

Phone

Address

Country

Zip

City

Region

Street

Home

Apartmen

Legal entity name

ИНН

КПП

Password

Password

Repeat password

We use cооkies to improve the performance of the site. By staying on our site, you agree to the terms of use of cооkies. To view our Privacy and Cookie Policy, please. click here.