Results 31 to 40 of about 3,203,139 (315)

A Comparison of Closed Loop vs. Fixed Frequency tACS on Modulating Brain Oscillations and Visual Detection

open access: yesFrontiers in Human Neuroscience, 2021
Transcranial alternating current stimulation has emerged as an effective tool for the exploration of brain oscillations. By applying a weak alternating current between electrodes placed on the scalp matched to the endogenous frequency, tACS enables the ...
H. Stecher   +3 more
semanticscholar   +1 more source

Mutual Interactions between Brain States and Alzheimer’s Disease Pathology: A Focus on Gamma and Slow Oscillations

open access: yesBiology, 2021
Brain state varies from moment to moment. While brain state can be defined by ongoing neuronal population activity, such as neuronal oscillations, this is tightly coupled with certain behavioural or vigilant states.
Nicole Byron   +2 more
doaj   +1 more source

Spatiotemporal Patterns of Adaptation-Induced Slow Oscillations in a Whole-Brain Model of Slow-Wave Sleep

open access: yesFrontiers in Computational Neuroscience, 2022
During slow-wave sleep, the brain is in a self-organized regime in which slow oscillations (SOs) between up- and down-states travel across the cortex. While an isolated piece of cortex can produce SOs, the brain-wide propagation of these oscillations are
Caglar Cakan   +9 more
doaj   +1 more source

Gauging Working Memory Capacity From Differential Resting Brain Oscillations in Older Individuals With A Wearable Device

open access: yesFrontiers in Aging Neuroscience, 2021
Working memory is a core cognitive function and its deficits is one of the most common cognitive impairments. Reduced working memory capacity manifests as reduced accuracy in memory recall and prolonged speed of memory retrieval in older adults ...
Soheil Borhani   +6 more
semanticscholar   +1 more source

Interactions between stimuli-evoked cortical activity and spontaneous low frequency oscillations measured with neuronal calcium

open access: yesNeuroImage, 2020
Spontaneous brain activity has been widely used to map brain connectivity. The interactions between task-evoked brain responses and the spontaneous cortical oscillations, especially within the low frequency range of ~0.1 ​Hz, are not fully understood ...
Wei Chen   +4 more
doaj   +1 more source

Brain Oscillations, Hypnosis, and Hypnotizability [PDF]

open access: yesAmerican Journal of Clinical Hypnosis, 2015
In this article, we summarize the state-of-science knowledge regarding the associations between hypnosis and brain oscillations. Brain oscillations represent the combined electrical activity of neuronal assemblies, and are usually measured as specific frequencies representing slower (delta, theta, alpha) and faster (beta, gamma) oscillations.
Mark P, Jensen   +2 more
openaire   +3 more sources

Brain rhythms of pain [PDF]

open access: yes, 2017
Pain is an integrative phenomenon that results from dynamic interactions between sensory and contextual (i.e., cognitive, emotional, and motivational) processes.
Gross, Joachim   +2 more
core   +1 more source

Alpha oscillation, criticality, and responsiveness in complex brain networks

open access: yesNetwork Neuroscience, 2020
Brains in unconsciousness are characterized by significantly limited responsiveness to stimuli. Even during conscious wakefulness, responsiveness is highly dependent on ongoing brain activity, specifically, of alpha oscillations (∼10 Hz). We hypothesized
Kim, MinKyung, Lee, UnCheol
doaj   +1 more source

Alpha oscillatory activity is causally linked to working memory retention.

open access: yesPLoS Biology, 2023
Although previous studies have reported correlations between alpha oscillations and the "retention" subprocess of working memory (WM), causal evidence has been limited in human neuroscience due to the lack of delicate modulation of human brain ...
Xueli Chen   +18 more
doaj   +1 more source

Discrete structure of the brain rhythms [PDF]

open access: yes, 2018
Neuronal activity in the brain generates synchronous oscillations of the Local Field Potential (LFP). The traditional analyses of the LFPs are based on decomposing the signal into simpler components, such as sinusoidal harmonics.
Bessis, Daniel   +3 more
core   +4 more sources

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