Results 1 to 10 of about 118,658 (298)

Cardiac activity impacts cortical motor excitability.

PLoS Biology, 2023
Human cognition and action can be influenced by internal bodily processes such as heartbeats. For instance, somatosensory perception is impaired both during the systolic phase of the cardiac cycle and when heartbeats evoke stronger cortical responses ...
Esra Al, Tilman Stephani, Melina Engelhardt, Saskia Haegens, Arno Villringer, Vadim V Nikulin   +5 more
doaj   +5 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

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

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

Modulation in cortical excitability disrupts information transfer in perceptual-level stimulus processing.

NeuroImage, 2021
Despite significant interest in the neural underpinnings of behavioral variability, little light has been shed on the cortical mechanism underlying the failure to respond to perceptual-level stimuli.
Ladan Moheimanian, Sivylla E. Paraskevopoulou, Markus Adamek, Gerwin Schalk, Peter Brunner   +4 more
doaj   +1 more source

Cortical excitability and multifidus activation responses to transcranial direct current stimulation in patients with chronic low back pain during remission

Scientific Reports, 2023
Evidence indicates that patients with chronic low back pain (CLBP) have lumbar multifidus muscle (LM) activation deficit which might be caused by changes in cortical excitability.
Peemongkon Wattananon, Khin Win Thu, Soniya Maharjan, Kanphajee Sornkaew, Hsing-Kuo Wang   +4 more
doaj   +1 more source

Hemodynamic correlates of fluctuations in neuronal excitability: A simultaneous Paired Associative Stimulation (PAS) and functional near infra-red spectroscopy (fNIRS) study

NeuroImage: Reports, 2022
Background: The relationship between task-related hemodynamic activity and brain excitability is poorly understood in humans as it is technically challenging to combine simultaneously non-invasive brain stimulation and neuroimaging modalities.
Zhengchen Cai, Giovanni Pellegrino, Amanda Spilkin, Edouard Delaire, Makoto Uji, Chifaou Abdallah, Jean-Marc Lina, Shirley Fecteau, Christophe Grova   +8 more
doaj   +1 more source