Results 41 to 50 of about 390,093 (289)

Many specialists for suppressing cortical excitation [PDF]

open access: yesfrontiers 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]

open access: yesBehavioural 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

Saccadic performance and cortical excitability as trait-markers and state-markers in rapid-cycling bipolar disorder: a 2-case follow-up study.

open access: yesFrontiers in Psychiatry, 2013
Background: The understanding of physiopathology and cognitive impairments in mood disorders requires finding objective markers. Mood disorders have often been linked to hypometabolism in the prefrontal dorsolateral cortex, and to GABAergic and ...
Jennifer eMalsert   +9 more
doaj   +1 more source

Motor cortical inhibitory deficits in patients with obsessive-compulsive disorder–A systematic review and meta-analysis of transcranial magnetic stimulation literature

open access: yesFrontiers in Psychiatry, 2022
IntroductionObsessive-compulsive disorder (OCD) is a highly prevalent chronic disorder, often refractory to treatment. While remaining elusive, a full understanding of the pathophysiology of OCD is crucial to optimize treatment.
Daniel Rodrigues da Silva   +12 more
doaj   +1 more source

Transcranial Magnetic Stimulation as a Tool to Investigate Motor Cortex Excitability in Sport

open access: yesBrain Sciences, 2021
Transcranial magnetic stimulation, since its introduction in 1985, has brought important innovations to the study of cortical excitability as it is a non-invasive method and, therefore, can be used both in healthy and sick subjects.
Fiorenzo Moscatelli   +14 more
doaj   +1 more source

Mixed mode oscillations in mouse spinal motoneurons arise from a low excitability state [PDF]

open access: yes, 2011
We explain the mechanism that elicits the mixed mode oscillations (MMOs) and the subprimary firing range that we recently discovered in mouse spinal motoneurons.
Caroline Iglesias   +14 more
core   +1 more source

Cortical excitability in migraine [PDF]

open access: yesThe 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

Effects of motor preparation and spatial attention on corticospinal excitability in a delayed-response paradigm [PDF]

open access: yes, 2007
The preparation of motor responses during the delay period of an instructed delay task is associated with sustained neural firing in the primate premotor cortex.
Mars, R.B.   +7 more
core   +1 more source

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

open access: yesAnnals 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   +3 more
wiley   +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

open access: yesAnnals 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   +7 more
wiley   +1 more source

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