Results 51 to 60 of about 91,087 (194)

Ontogeny of the circadian rhythm in medial basal hypothalamic beta-endorphin content in female rat [PDF]

open access: yes, 1994
The present study evaluated the possible role of estrogens in generating the circadian rhythm of medial basal hypothalamus content at the time of puberty in female rats.
NAPPI RE   +20 more
core   +1 more source

What happens in between? Human oscillatory brain activity related to crossmodal spatial cueing. [PDF]

open access: yes, 2008
Previous studies investigated the effects of crossmodal spatial attention by comparing the responses to validly versus invalidly cued target stimuli. Dynamics of cortical rhythms in the time interval between cue and target might contribute to cue effects
Maja U Trenner   +35 more
core   +1 more source

Perception of pro- and antisocial behavior by children: modulations of EEG alpha and beta rhythms [PDF]

open access: yesSHS Web of Conferences, 2019
The paper surveys the behavior and psychophysiological responses (electroencephalographic power modulations of the alpha and beta rhythms) in 16 boys and 33 girls aged from 1.5 to 3.5 years when they were distributing reward tokens (carton cookies) among
Orekhova Lilia   +3 more
doaj   +1 more source

Disruption of rhythms of molecular clocks in primary synovial fibroblasts of patients with osteoarthritis and rheumatoid arthritis, role of IL-1;2/TNF [PDF]

open access: yes, 2012
Introduction: Circadian rhythms play an important role in the body and in single cells. Rhythms of molecular clocks have not been investigated in synovial fibroblasts (SF) of patients with osteoarthritis (OA) and rheumatoid arthritis (RA).
Haas, Stefanie   +3 more
core   +1 more source

Effectiveness of pharmacological cardioversion of new-onset atrial fibrillation during thoracic surgery operations: a single-centre experience

open access: yesJournal of Cardiothoracic Surgery, 2023
Objective Prophylactic pharmacological conversion agents could reduce the incidence of postoperative atrial fibrillation (AF) in patients undergoing thoracic operations.
Dehua WU   +4 more
doaj   +1 more source

Network semantic-topological model of electrogenesis

open access: yesJournal of Education, Health and Sport, 2023
A network semantic-topological model of electrogenesis is proposed. This line of research can be considered as network neurophysiology. When building the model, using the calculation of multiple linear regression coefficients, we studied the ...
B. Lobasyuk, L. Bartsevich, A. Zamkova
doaj   +1 more source

The rate of transient beta frequency events predicts behavior across tasks and species

open access: yeseLife, 2017
Beta oscillations (15-29Hz) are among the most prominent signatures of brain activity. Beta power is predictive of healthy and abnormal behaviors, including perception, attention and motor action.
Hyeyoung Shin   +4 more
doaj   +1 more source

Normal bilirubinemia downregulates the power spectral density of the θ and Δ rhythm, instead upregulates the β rhythm and sympatho-vagal balance in adults humans

open access: yesJournal of Education, Health and Sport, 2022
Background. Neonatal hyperbilirubinemia has been known to damage neural function. Our goal is to determine whether the neurotropic activity of normal bilirubinemia in adults is evident. Methods. The object of observation were 77 volunteers: 30 women and
Mykhaylo Korda   +8 more
doaj   +1 more source

Circadian dysfunction and Alzheimer's disease – An updated review

open access: yesAging Medicine, 2023
Alzheimer's disease (AD) is considered to be the most typical form of dementia that provokes irreversible cognitive impairment. Along with cognitive impairment, circadian rhythm dysfunction is a fundamental factor in aggravating AD.
Faizan Ahmad   +3 more
doaj   +1 more source

Systemic analysis of eeg activation response in right and left handers

open access: yesJournal of Education, Health and Sport, 2022
Most researchers in the study of the EEG activation response studied changes in alpha activity, while the dynamics of changes in other EEG rhythms and functional interhemispheric asymmetry (FMAA) was described and analyzed to an immeasurably lesser ...
B. Lobasyuk, L. Bartsevich
doaj   +1 more source

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