Results 1 to 10 of about 64,426 (161)

Cortical excitability is affected by light exposure – Distinct effects in adolescents and young adults [PDF]

Neurobiology of Sleep and Circadian Rhythms
Light, particularly blue-wavelength light exerts a broad range of non-image forming (NIF) effects including the stimulation of cognition and alertness and the regulation of mood, sleep and circadian rhythms.
Roya Sharifpour, Fermin Balda, Ilenia Paparella, John Read, Zoé Leysens, Sara Letot, Islay Campbell, Elise Beckers, Fabienne Collette, Christophe Phillips, Mikhail Zubkov, Gilles Vandewalle   +11 more
doaj   +2 more sources

Circadian regulation of human cortical excitability [PDF]

Nature Communications, 2016
AbstractProlonged wakefulness alters cortical excitability, which is essential for proper brain function and cognition. However, besides prior wakefulness, brain function and cognition are also affected by circadian rhythmicity. Whether the regulation of cognition involves a circadian impact on cortical excitability is unknown.
Giulia Gaggioni, Sarah L Chellappa, Mario Rosanova   +2 more
exaly   +8 more sources

TDCS modulates cortical excitability in patients with disorders of consciousness

NeuroImage: Clinical, 2017
Transcranial direct current stimulation (tDCS)11 TDCS = transcranial direct current stimulation has been reported to be a promising technique for consciousness improvement for patients with disorders of consciousness (DOC).22 DOC = disorders of ...
Yang Bai, Xiaoyu Xia, Jiannan Kang
exaly   +3 more sources

No effect of anodal tDCS on motor cortical excitability and no evidence for responders in a large double-blind placebo-controlled trial

Brain Stimulation, 2021
Background: Transcranial direct current stimulation (tDCS) has emerged as a non-invasive brain stimulation technique. Most studies show that anodal tDCS increases cortical excitability. However, this effect has been found to be highly variable. Objective:
Zeb D Jonker, Carolin Gaiser, Joke H M Tulen   +2 more
exaly   +3 more sources

Frequency-specific modulation of motor cortical excitability by transcranial alternating current stimulation [PDF]

Journal of NeuroEngineering and Rehabilitation
Background Transcranial alternating current stimulation (tACS) is a non-invasive technique that modulates neural oscillations, yet its specific effects on cortical excitability are not well-understood.
Lei Tingting, Chen Lilin, Wang Chuangjia, Si Jiamen, Zhang Shuxian, Ai Yinan, Liu Hanjun, Zheng Haiqing   +7 more
doaj   +2 more sources

Post-Movement Beta Synchrony Inhibits Cortical Excitability [PDF]

Brain Sciences
Background/Objectives: This study investigates the relationship between movement-related beta synchrony and primary motor cortex (M1) excitability, focusing on the time-dependent inhibition of movement. Voluntary movement induces beta frequency (13–30 Hz)
Edward Rhodes, William Gaetz, Jonathan Marsden, Stephen D. Hall   +3 more
doaj   +2 more sources

Modulating cortical excitability and cortical arousal by pupil self-regulation. [PDF]

Nat Commun
Abstract The brain’s arousal state (i.e., central arousal) is regulated by multiple neuromodulatory nuclei in the brainstem and significantly influences high-level cognitive processes. By exploiting the mechanistic connection between the locus coeruleus, a key regulator of central arousal, and pupil dynamics, we recently demonstrated that ...
Weijs ML, Missura S, Potok-Szybińska W, Bächinger M, Badii B, Carro-Domínguez M, Wenderoth N, Meissner SN.   +7 more
europepmc   +5 more sources

Cortical excitability and cell division [PDF]

Current Biology, 2021
As the interface between the cell and its environment, the cell cortex must be able to respond to a variety of external stimuli. This is made possible in part by cortical excitability, a behavior driven by coupled positive and negative feedback loops that generate propagating waves of actin assembly in the cell cortex.
Michaud, Ani, Swider, Zachary T., Landino, Jennifer, Leda, Marcin, Miller, Ann L., von Dassow, George, Goryachev, Andrew B., Bement, William M   +7 more
openaire   +3 more sources

Auditory white noise exposure results in intrinsic cortical excitability changes

iScience, 2023
Summary: Cortical excitability is commonly measured by applying magnetic stimulation in combination with measuring behavioral response. This measure has, however, some shortcomings including spatial limitation to the primary motor cortex and not ...
Anna-Lisa Schuler, Diandra Brkić, Giulio Ferrazzi, Giorgio Arcara, Daniele Marinazzo, Giovanni Pellegrino   +5 more
doaj   +1 more source

Brain activation in motor sequence learning is related to the level of native cortical excitability. [PDF]

PLoS ONE, 2013
Cortical excitability may be subject to changes through training and learning. Motor training can increase cortical excitability in motor cortex, and facilitation of motor cortical excitability has been shown to be positively correlated with improvements
Silke Lissek, Guido S Vallana, Onur Güntürkün, Hubert Dinse, Martin Tegenthoff   +4 more
doaj   +1 more source