Results 11 to 20 of about 2,542,892 (318)

Warm inflation with an oscillatory inflaton in the non-minimal kinetic coupling model

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
In the cold inflation scenario, the slow roll inflation and reheating via coherent rapid oscillation, are usually considered as two distinct eras. When the slow roll ends, a rapid oscillation phase begins and the inflaton decays to relativistic particles
Parviz Goodarzi, H. Mohseni Sadjadi
doaj   +4 more sources

Oscillation-specific nodal alterations in early to middle stages Parkinson’s disease [PDF]

open access: yesTranslational Neurodegeneration, 2019
Background Different oscillations of brain networks could carry different dimensions of brain integration. We aimed to investigate oscillation-specific nodal alterations in patients with Parkinson’s disease (PD) across early stage to middle stage by ...
Xiaojun Guan   +14 more
doaj   +3 more sources

The Overnight Retention of Novel Metaphors Associates With Slow Oscillation–Spindle Coupling but Not With Respiratory Phase at Encoding [PDF]

open access: yesFrontiers in Behavioral Neuroscience, 2021
Accumulating evidence emphasizes the relevance of oscillatory synchrony in memory consolidation during sleep. Sleep spindles promote memory retention, especially when occurring in the depolarized upstate of slow oscillation (SO).
Risto Halonen   +3 more
doaj   +2 more sources

Precise Slow Oscillation-Spindle Coupling Promotes Memory Consolidation in Younger and Older Adults. [PDF]

open access: yesSci Rep, 2019
Memory consolidation during sleep relies on the precisely timed interaction of rhythmic neural events. Here, we investigate differences in slow oscillations (SO; 0.5–1 Hz), sleep spindles (SP), and their coupling across the adult human lifespan and ask ...
Muehlroth BE   +6 more
europepmc   +2 more sources

Sleep slow oscillation and inhibition [PDF]

open access: yesThe Journal of Physiology, 2020
When we fall asleep, fast electrical brain activities are progressively replaced by slower rhythms. The major sleep rhythm is the slow oscillation, the cortically generated brain rhythm with a frequency around 1 Hz.
I. Timofeev
semanticscholar   +3 more sources

Cortex-wide BOLD fMRI activity reflects locally-recorded slow oscillation-associated calcium waves. [PDF]

open access: yesElife, 2017
Spontaneous slow oscillation-associated slow wave activity represents an internally generated state which is characterized by alternations of network quiescence and stereotypical episodes of neuronal activity - slow wave events.
Schwalm M   +11 more
europepmc   +2 more sources

Sleep slow oscillation and plasticity.

open access: yesCurrent Opinion in Neurobiology, 2017
It is well documented that sleep contributes to memory consolidation and it is also accepted that long-term synaptic plasticity plays a critical role in memory formation. The mechanisms of this sleep-dependent memory formation are unclear.
I. Timofeev, S. Chauvette
semanticscholar   +3 more sources

The impact of cortical deafferentation on the neocortical slow oscillation. [PDF]

open access: yesJ Neurosci, 2014
Slow oscillation is the main brain rhythm observed during deep sleep in mammals. Although several studies have demonstrated its neocortical origin, the extent of the thalamic contribution is still a matter of discussion.
Lemieux M   +4 more
europepmc   +2 more sources

Moderate Cortical Cooling Eliminates Thalamocortical Silent States during Slow Oscillation. [PDF]

open access: yesJ Neurosci, 2015
Reduction in temperature depolarizes neurons by a partial closure of potassium channels but decreases the vesicle release probability within synapses.
Sheroziya M, Timofeev I.
europepmc   +2 more sources

The Sleep Slow Oscillation as a Traveling Wave [PDF]

open access: yesThe Journal of Neuroscience, 2004
During much of sleep, virtually all cortical neurons undergo a slow oscillation (
M. Massimini   +4 more
semanticscholar   +4 more sources

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