Results 1 to 10 of about 104,064 (183)

Relationship between Delta Rhythm, Seizure Occurrence and Allopregnanolone Hippocampal Levels in Epileptic Rats Exposed to the Rebound Effect [PDF]

open access: yesPharmaceuticals, 2021
Abrupt withdrawal from antiepileptic drugs is followed by increased occurrence of epileptic seizures, a phenomenon known as the “rebound effect”. By stopping treatment with levetiracetam (LEV 300 mg/kg/day, n = 15; vs.
Anna-Maria Costa   +4 more
doaj   +2 more sources

Delta rhythm in wakefulness: evidence from intracranial recordings in human beings. [PDF]

open access: yesJ Neurophysiol, 2015
A widely accepted view is that wakefulness is a state in which the entire cortical mantle is persistently activated, and therefore desynchronized. Consequently, the EEG is dominated by low-amplitude, high-frequency fluctuations. This view is currently under revision because the 1–4 Hz delta rhythm is often evident during “quiet” wakefulness in rodents
Sachdev RN   +5 more
europepmc   +3 more sources

Delta Rhythm Orchestrates the Neural Activity Underlying the Resting State BOLD Signal via Phase-amplitude Coupling. [PDF]

open access: yesCereb Cortex, 2019
Spontaneous ongoing neuronal activity is a prominent feature of the mammalian brain. Temporal and spatial patterns of such ongoing activity have been exploited to examine large-scale brain network organization and function. However, the neurophysiological basis of this spontaneous brain activity as detected by resting-state functional Magnetic ...
Jaime S   +6 more
europepmc   +4 more sources

A neocortical delta rhythm facilitates reciprocal interlaminar interactions via nested theta rhythms. [PDF]

open access: yesJ Neurosci, 2013
Delta oscillations (1-4 Hz) associate with deep sleep and are implicated in memory consolidation and replay of cortical responses elicited during wake states. A potent local generator has been characterized in thalamus, and local generators in neocortex have been suggested.
Carracedo LM   +8 more
europepmc   +5 more sources

Acoustic Analyses of the Digital Doppler Allen Test [PDF]

open access: yesPlastic and Reconstructive Surgery, Global Open
Background:. In this study, we aimed to perform noninvasive acoustic quantification of digital arterial Doppler sounds and to determine the possibility of evaluating digital arterial circulation using the results of acoustic assessment. Methods:. In this
Koichi Kobayashi, MD   +3 more
doaj   +2 more sources

A model for delta rhythm fit to high-frequency cortical activity data [PDF]

open access: yesBMC Neurosci, 2013
Background Rhythmic activity in the brain has been known since Berger’s discovery of the alpha rhythm in the 1920’s. Numerous mechanisms have been proposed for various rhythms but in the past half-century no consensus has been reached on the mechanism of any major rhythm. The recent development of high-throughput imaging methods enable us for the first
Reimers M, Mohajerani M, Murphy T.
europepmc   +3 more sources

The role of syllabic rhythm in speech perception across languages [PDF]

open access: yesScientific Reports
The insertion of silences at regular intervals restores the intelligibility of English utterances that have been accelerated beyond comprehension, as long as the duration of the resulting speech-silence chunks falls within the theta rhythm of natural ...
Irene de la Cruz-Pavía   +5 more
doaj   +2 more sources

Generator of EEG Delta Rhythms Based on Si Nanowires [PDF]

open access: yesJournal of Nano- and Electronic Physics, 2021
Стаття присвячена розробці генератора дельта ритмів електроенцефалограми (ЕЕГ) людського мозку на основі дослідження електрофізичних характеристик зростків нанодротів Si. Кремнієві мікрота нанодроти вирощували методом хімічного осадження з газової фази і мали діаметр від 100 нм до 20 мкм.
Ostrovska, K.O.   +3 more
openaire   +2 more sources

Hippocampal non-theta state: The “Janus face” of information processing

open access: yesFrontiers in Neural Circuits, 2023
The vast majority of studies on hippocampal rhythms have been conducted on animals or humans in situations where their attention was focused on external stimuli or solving cognitive tasks.
Ivan Mysin, Liubov Shubina
doaj   +1 more source

The Influence of a Low-Frequency Musical Fragment on the Neural Oscillations [PDF]

open access: yesArchives of Acoustics, 2022
Study of musical-acoustic influences, which are used to improve the functional state of a person, as well as her/his neurophysiological or psychological rehabilitation, is very relevant nowadays.
Kateryna Drozdenko   +6 more
doaj   +1 more source

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