Results 41 to 50 of about 189,686 (299)

Effects of the CPAP Treatment on the NON-REM Sleep Microstructures in Patients with Severe Apnea-Hypoapnea Syndrome [PDF]

, 2014
Sleep quality is affected in patients with sleep apnea- hypopnea syndrome (SAHS) with nocturnal and diurnal consequences. Most of these patients who are treated with positive airway pressure (CPAP) return to normal sleep patterns.
Blanco, Susana Alicia Ana, Di Risio, Cecilia Diana, Eguiguren, Veronica, Smurra, Marcela   +3 more
core   +1 more source

An end-to-end framework for real-time automatic sleep stage classification. [PDF]

, 2018
Sleep staging is a fundamental but time consuming process in any sleep laboratory. To greatly speed up sleep staging without compromising accuracy, we developed a novel framework for performing real-time automatic sleep stage classification.
Ancoli-Israel, Sonia, Chee, Michael WL, Gooley, Joshua J, Ong, Ju Lynn, Patanaik, Amiya   +4 more
core   +1 more source

Quantifying sleep architecture dynamics and individual differences using big data and Bayesian networks [PDF]

, 2018
The pattern of sleep stages across a night (sleep architecture) is influenced by biological, behavioral, and clinical variables. However, traditional measures of sleep architecture such as stage proportions, fail to capture sleep dynamics.
Cellini, Nicola, Mcdevitt, Elizabeth A, Mednick, Sara C, Shelton, Christian, Yetton, Benjamin D   +4 more
core   +2 more sources

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

Neuronal avalanches differ from wakefulness to deep sleep - evidence from intracranial depth recordings in humans [PDF]

, 2013
Neuronal activity differs between wakefulness and sleep states. In contrast, an attractor state, called self-organized critical (SOC), was proposed to govern brain dynamics because it allows for optimal information coding.
Le Van Quyen, Michel, Priesemann, Viola, Valderrama, Mario, Wibral, Michael   +3 more
core   +3 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

Enhancement of sleep slow waves: underlying mechanisms and practical consequences.

Frontiers in Systems Neuroscience, 2014
Even modest sleep restriction, especially the loss of sleep slow wave activity, is invariably associated with slower EEG activity during wake, the occurrence of local sleep in an otherwise awake brain, and impaired performance due to cognitive and memory
Michele eBellesi, Brady A Riedner, Gary N Garcia-Molina, Gary N Garcia-Molina, Chiara eCirelli, Giulio eTononi   +5 more
doaj   +1 more source

L-DOPA increases slow-wave sleep duration and selectively modulates memory persistence in older adults

Frontiers in Behavioral Neuroscience, 2023
IntroductionMillions of people worldwide take medications such as L-DOPA that increase dopamine to treat Parkinson’s disease. Yet, we do not fully understand how L-DOPA affects sleep and memory.
Hanna K. Isotalus, Hanna K. Isotalus, Will J. Carr, Jonathan Blackman, Jonathan Blackman, George G. Averill, Oliver Radtke, James Selwood, James Selwood, Rachel Williams, Elizabeth Ford, Liz McCullagh, James McErlane, Cian O’Donnell, Claire Durant, Ullrich Bartsch, Matt W. Jones, Carlos Muñoz-Neira, Alfie R. Wearn, John P. Grogan, John P. Grogan, John P. Grogan, Elizabeth J. Coulthard, Elizabeth J. Coulthard   +23 more
doaj   +1 more source

Defining slow wave sleep without slow waves

Trends in Neurosciences
Recent research by Parks, Schneider, and colleagues demonstrates that brain states during rodent sleep can be predicted from neural activity on millisecond and micrometer scales. These findings contradict the traditional view that defines sleep by brain-wide oscillations.
Janna D. Lendner, Randolph F. Helfrich
openaire   +2 more sources

Automated selective disruption of slow wave sleep [PDF]

Journal of Neuroscience Methods, 2017
Slow wave sleep (SWS) plays an important role in neurophysiologic restoration. Experimentally testing the effect of SWS disruption previously required highly time-intensive and subjective methods. Our goal was to develop an automated and objective protocol to reduce SWS without affecting sleep architecture.We developed a custom Matlab™ protocol to ...
Ooms, S.J., Zempel, J., Holtzman, D.M., Ju, Y.   +3 more
openaire   +3 more sources