Results 31 to 40 of about 68,657 (264)

Cortical excitability and the shape of the haemodynamic response [PDF]

NeuroImage, 2015
Individual differences in the temporal dynamics of the haemodynamic response can reflect cortical excitation and can reveal underlying cortical physiology. Here, we show differences in the shape of the haemodynamic response that are dependent on stimulus parameters. Two sets of visual stimuli were used varying in parameters that are known to manipulate
Sarah M. Haigh, Nicholas R. Cooper, Arnold J. Wilkins   +2 more
openaire   +4 more sources

The After-Effect of Accelerated Intermittent Theta Burst Stimulation at Different Session Intervals

Frontiers in Neuroscience, 2020
ObjectiveThe study aims to investigate the after-effect of three sessions of intermittent theta-burst stimulation (iTBS) on motor cortical excitability. The iTBS was induced over the primary motor cortex (M1) at different time intervals.MethodsThe study ...
Fengyun Yu, Fengyun Yu, Xinwei Tang, Ruiping Hu, Sijie Liang, Weining Wang, Shan Tian, Yi Wu, Ti-Fei Yuan, Ti-Fei Yuan, Yulian Zhu   +10 more
doaj   +1 more source

Prolonged Continuous Theta Burst Stimulation to Demonstrate a Larger Analgesia as Well as Cortical Excitability Changes Dependent on the Context of a Pain Episode

Frontiers in Aging Neuroscience, 2022
A series of neuropathic pain conditions have a prevalence in older adults potentially associated with declined functioning of the peripheral and/or central nervous system.
Ying Liu, Lina Yu, Xianwei Che, Xianwei Che, Min Yan   +4 more
doaj   +1 more source

Many specialists for suppressing cortical excitation [PDF]

frontiers in Neuroscience, 2008
Cortical computations are critically dependent on GABA-releasing neurons for dynamically balancing excitation with inhibition that is proportional to the overall level of activity. Although it is widely accepted that there are multiple types of interneurons, defining their identities based on qualitative descriptions of morphological, molecular and ...
openaire   +4 more sources

Handedness and the excitability of cortical inhibitory circuits [PDF]

Behavioural Brain Research, 2012
Inhibitory processes play a significant role in the control of goal-directed actions. To increase insights into these mechanisms as a function of handedness, we measured the transient inhibition of volitional motor activity induced by single pulse transcranial magnetic stimulation during bimanual isometric contractions with symmetrical and asymmetrical
Reid, Campbell S., Serrien, Deborah J.
openaire   +2 more sources

An index to probe cortical excitability

Journal of Neural Engineering
Abstract Objective. Cortical excitability can be defined as the cortex’s responsiveness to incoming stimuli. It can be probed with brain stimulation, either globally and non-invasively, using transcranial magnetic stimulation or locally through direct electrical stimulation of the cortex. Here,
R D Widmer, C G Mignardot, E Pérez-Martínez, C Friedrichs-Maeder, M O Baud   +4 more
openaire   +2 more sources

Natural Frequencies of Levodopa‐Induced Dyskinesia in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Abnormal involuntary movements, known as dyskinesias, are common complications of levodopa treatment in patients with Parkinson's disease and can significantly impair quality of life. The underlying pathophysiology remains unclear, and current therapeutic options are limited.
Ioannis U. Isaias, Federica Avantaggiato, Gianni Pezzoli, Andrea Canessa   +3 more
wiley   +1 more source

Cortical excitability on sleep deprivation measured by transcranial magnetic stimulation: A systematic review and meta-analysis

Brain Research Bulletin
Sleep deprivation is a common public problem, and researchers speculated its neurophysiological mechanisms related to cortical excitatory and inhibitory activity.
Yihui Zhang, Yuan Shi, Ye Zhang, Jian Jiao, Xiangdong Tang   +4 more
doaj   +1 more source

Cortical excitability in migraine [PDF]

The Journal of Headache and Pain, 2000
Cortical hyperexcitability in migraine has been suggested to play a pivotal role in triggering migraine attacks, possibly via generation of spreading depression. Low levels of plasma, intracellular and brain magnesium as well as increased amplitudes of visual evoked potentials support this theory. More recent data on evoked and even related potentials,
openaire   +1 more source

Impact of Age on the Diagnostic Yield of Routine EEG in People With Childhood or Juvenile Absence Epilepsy: A Cross‐Sectional Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background We aimed to identify the proportion of individuals with a confirmed diagnosis of childhood absence epilepsy (CAE) or juvenile absence epilepsy (JAE) who show a negative routine EEG (rEEG), and to determine the main factors associated with this finding.
Francesco Fortunato, Alessia Giugno, Miriam Sturniolo, Enrico Fratto, Pio Zoleo, Francesca Felicia Operto, Ilaria Sammarra, Antonio Gambardella   +7 more
wiley   +1 more source