States of Wakefulness, Mentation and Consciousness are Accompanied By The Characteristic Electrical Activity Of The Thalamocortical Mechanisms Of The Human Brain

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21260%2F25%3A00390840" target="_blank" >RIV/68407700:21260/25:00390840 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.14311/NNW.2025.35.007" target="_blank" >https://doi.org/10.14311/NNW.2025.35.007</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/NNW.2025.35.007" target="_blank" >10.14311/NNW.2025.35.007</a>

Result language

angličtina

Original language name

States of Wakefulness, Mentation and Consciousness are Accompanied By The Characteristic Electrical Activity Of The Thalamocortical Mechanisms Of The Human Brain

Original language description

This study explores the electrical activity of the thalamocortical system in the human brain during states of wakefulness, relaxation, and cognitive effort. Using non-invasive electroencephalography (EEG), we examined the dynamics of brain waves, particularly the alpha rhythm (8-13 Hz), and its variations during mental tasks. We introduced a novel metric, Quotus alpha (Qa), to quantify the asymmetry and slope of alpha waves. Our research included 26 participants across diverse groups: healthy adults, individuals with neurological abnormalities, and children diagnosed with ADHD. Results revealed distinct patterns of alpha wave asymmetry, with steeper left-sided slopes during cognitive tasks, correlating with increased mental effort and altered delta activity. These patterns differed notably between adults and children, suggesting developmental and functional distinctions in thalamocortical processing. The findings support the role of iterative thalamocortical interactions in cognitive processes, emphasizing their adaptability and complexity. In healthy adults, alpha dynamics reflected higher cognitive performance and recruitment of neural resources. Conversely, the atypical EEG patterns observed in children with ADHD and individuals with neurological conditions highlight potential diagnostic and therapeutic implications. This study enhances our understanding of the neural underpinnings of attention, cognition, and neurodevelopmental disorders while providing new methodological insights into EEG analysis.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30500 - Other medical sciences

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Neural Network World

ISSN

1210-0552

e-ISSN

2336-4335

Volume of the periodical

35

Issue of the periodical within the volume

6

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

15

Pages from-to

123-137

UT code for WoS article

001730356700002

EID of the result in the Scopus database

2-s2.0-105035968834