Results 31 to 40 of about 2,280,950 (106)

What can a mean-field model tell us about the dynamics of the cortex? [PDF]

, 2010
In this chapter we examine the dynamical behavior of a spatially homogeneous two-dimensional model of the cortex that incorporates membrane potential, synaptic flux rates and long- and short-range synaptic input, in two spatial dimensions, using ...
Steyn-Ross, Moira L., Steyn-Ross, D. Alistair, Sleigh, James W., Gillies, Iain-Patrick, Wilson, Marcus T., Hailstone, David J.   +5 more
core   +1 more source

Thalamic reticular nucleus induces fast and local modulation of arousal state

eLife, 2015
During low arousal states such as drowsiness and sleep, cortical neurons exhibit rhythmic slow wave activity associated with periods of neuronal silence.
Laura D Lewis, Jakob Voigts, Francisco J Flores, L Ian Schmitt, Matthew A Wilson, Michael M Halassa, Emery N Brown   +6 more
doaj   +1 more source

Effects of Anti-Seizure Medication on Sleep Spindles and Slow Waves in Drug-Resistant Epilepsy

Brain Sciences, 2022
There is a close bidirectional relationship between sleep and epilepsy. Anti-seizure medications (ASM) act to reduce seizure frequency but can also impact sleep; this remains a relatively unexplored field given the importance of sleep on seizure ...
Jennifer K. Roebber, Penelope A. Lewis, Vincenzo Crunelli, Miguel Navarrete, Khalid Hamandi   +4 more
doaj   +1 more source

Sleep spindle and slow wave activity in Bipolar Disorder: preliminary observations from a high–density EEG study

European Psychiatry, 2023
Introduction Recent research on Schizophrenia (SCZ) suggests that reduced sleep spindle and slow wave density could be particularly informative of underlying thalamocortical and cortical synchronization mechanisms and dysfunctions.
C. Sanguineti, F. L. Donati, M. Sala, C. Carrara, C. Casetta, C. Zangani, A. Mayeli, A. Castelnovo, M. P. Canevini, A. D’Agostino   +9 more
doaj   +1 more source

Wave Climate, Geotechnical and Geophysical Analysis of the Tillamook Jetties [PDF]

Wave Energy AS (WE) is an ocean energy company from Norway established to develop, test, market and commercialize the patented SSG™ wave energy converter technology.
Wave Energy AS, Bakke, Monica
core   +6 more sources

Increased Stability and Breakdown of Brain Effective Connectivity During Slow-Wave Sleep: Mechanistic Insights from Whole-Brain Computational Modelling

Scientific Reports, 2017
Recent research has found that the human sleep cycle is characterised by changes in spatiotemporal patterns of brain activity. Yet, we are still missing a mechanistic explanation of the local neuronal dynamics underlying these changes.
Beatrice M. Jobst, Rikkert Hindriks, Helmut Laufs, Enzo Tagliazucchi, Gerald Hahn, Adrián Ponce-Alvarez, Angus B. A. Stevner, Morten L. Kringelbach, Gustavo Deco   +8 more
doaj   +1 more source

Daytime dexmedetomidine sedation with closed-loop acoustic stimulation alters slow wave sleep homeostasis in healthy adults

BJA Open
Background: The alpha-2 adrenergic agonist dexmedetomidine induces EEG patterns resembling those of non-rapid eye movement (NREM) sleep. Fulfilment of slow wave sleep (SWS) homeostatic needs would address the assumption that dexmedetomidine induces ...
S. Kendall Smith, MohammadMehdi Kafashan, Rachel L. Rios, Emery N. Brown, Eric C. Landsness, Christian S. Guay, Ben Julian A. Palanca   +6 more
doaj   +1 more source

Neurostimulation techniques to enhance sleep and improve cognition in aging

Neurobiology of Disease, 2020
Sleep plays a critical role in the process of memory consolidation. In particular, during non-rapid eye movement (NREM) slow wave sleep, slow-oscillations, spindles, hippocampal sharp wave ripples, and their phase coupling are involved in the process of ...
Daniela Grimaldi, Nelly A. Papalambros, Phyllis C. Zee, Roneil G. Malkani   +3 more
doaj   +1 more source

Thalamic influence on slow wave slope renormalization during sleep [PDF]

, 2021
OBJECTIVE Slow waves are thought to mediate an overall reduction in synaptic strength during sleep. The specific contribution of the thalamus to this so-called synaptic renormalization is unknown. Thalamic stroke is associated with daytime sleepiness,
Aleksandra K. Eberhard‐Moscicka, Wiest, Roland, Jaramillo, Valeria; https://orcid.org/, Bassetti, Claudio L A, Claudio L. A. Bassetti, Armand Mensen, Heyse, Natalie C, Heyse, Natalie C., Mensen, Armand, Bassetti, Claudio L. A., Eberhard-Moscicka, Aleksandra K, Angelina Maric, Huber, Reto, Jasmine Jendoubi, Eberhard‐Moscicka, Aleksandra K., Valeria Jaramillo, Eberhard-Moscicka, Aleksandra K., Reto Huber, Maric, Angelina, Jendoubi, Jasmine, Roland Wiest, Natalie C. Heyse, Jaramillo, Valeria   +22 more
core   +2 more sources

A polysomnographic study of slow-wave sleep loss in elderly patients with epilepsy

Heliyon
Objective: The primary objective is to explore what causes slow-wave sleep loss in elderly patients with epilepsy. The secondary objective is to identify the PSG characteristics in elderly patients with epilepsy.
Sihang Wang, Meina Wu, Sangru Wu, Fang Lin, Xiaolin Ji, Jinzhu Yan   +5 more
doaj   +1 more source