Results 51 to 60 of about 44,355 (296)
The sleep-wakefulness cycle of Wistar rats with spontaneous absence-like epilepsy
Acta Scientiarum: Biological Sciences, 2015 Possible interactions between the sleep-wakefulness cycle and a new kind of spontaneous epilepsy, expressed as absence-like seizures and spike-wave bursts in FMUSP rats, are evaluated.
Edison Sanfelice André +3 more
doaj +1 more source
Cortical excitability signatures for the degree of sleepiness in human
eLife, 2021 Sleep is essential in maintaining physiological homeostasis in the brain. While the underlying mechanism is not fully understood, a ‘synaptic homeostasis’ theory has been proposed that synapses continue to strengthen during awake and undergo downscaling ...
Chin-Hsuan Chia +12 more
doaj +1 more source
A Subcircuit in the Suprachiasmatic Nucleus Generates Wakefulness
Advanced Science, EarlyView.This study identifies a sub‐circuit within the circadian pacemaker suprachiasmatic nucleus (SCN) that promotes arousal. This sub‐circuit is labeled by the clock output molecule mWAKE, which suppresses its excitability in a time‐dependent manner. mWAKE‐expressing cells in the SCN (SCNmWAKE cells) project to the subparaventricular zone (SPZ) to mediate ...
Qiang Liu +6 more
wiley +1 more source
Wakes in inhomogeneous plasmas [PDF]
Physical Review E, 2014 The Debye shielding of a charge immersed in a flowing plasma is an old classic problem in plasma physics. It has been given renewed attention in the last two decades in view of experiments with complex plasmas, where charged dust particles are often levitated in a region with strong ion flow.
Kompaneets, R. +3 more
openaire +4 more sources
American Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.ABSTRACT Mental disorders are a significant global public health concern, affecting nearly one in eight individuals worldwide. This review investigates the multifaceted etiology of mental disorders—specifically major depressive disorder (MDD), schizophrenia (SCZ), and bipolar disorder (BD)—through genetic, neurobiological, and environmental ...
Maria Francesca Astorino +8 more
wiley +1 more source
Neuroscience, 1991 Following a set of studies concerning the intrinsic electrophysiology of mammalian central neurons in relation to global brain function, we reach the following conclusions: (i) the main difference between wakefulness and paradoxical sleep lies in the weight given to sensory afferents in cognitive images; (ii) otherwise, wakefulness and paradoxical ...
Rodolfo R. Llinás, Denis Paré
openaire +3 more sources
Visual Features in Stereo‐Electroencephalography to Predict Surgical Outcome: A Multicenter Study
Annals of Neurology, EarlyView.Objective Epilepsy surgery needs predictive features that are easily implemented in clinical practice. Previous studies are limited by small sample sizes, lack of external validation, and complex computational approaches. We aimed to identify and validate visually stereo‐electroencephalography (SEEG) features with the highest predictive value for ...
Chifaou Abdallah +20 more
wiley +1 more source
Frontiers in Neuroscience, 2019 Sleep has been classically described as an all-or-nothing global phenomenon. However, recent research strongly suggests that this view requires tempering.
Thomas Andrillon +9 more
doaj +1 more source
Heart Rate Profiles During Exercise and Incident Parkinson's Disease
Annals of Neurology, EarlyView.Objective To determine whether established heart rate parameters of exercise, related to cardiac autonomic function, are associated with incident Parkinson's disease, independent of both clinical and autonomic prodromal features. Methods A study of UK Biobank participants who performed a standardized bicycle exercise test (2009–2013), followed until ...
Stefan van Duijvenboden +13 more
wiley +1 more source
Frontiers in Neuroscience, 2018 Neurons expressing neuropeptide orexins (hypocretins) in the lateral hypothalamus (LH) and serotonergic neurons in the dorsal raphe nucleus (DR) both play important roles in the regulation of sleep/wakefulness states, and show similar firing patterns ...
Yuki C. Saito +9 more
doaj +1 more source