Results 251 to 260 of about 68,479 (299)

Motor cortical excitability in schizophrenia

Biological Psychiatry, 2002
Transcranial magnetic stimulation (TMS) provides a method to examine cortico-cortical motor excitability and hemispheric asymmetry in unmedicated and medicated schizophrenia patients.Fourteen right-handed schizophrenia patients (seven on conventional neuroleptics and seven medication-free) were compared with seven right-handed, age- and gender-matched ...
Alvaro Pascual-Leone, Dara S Manoach
exaly   +3 more sources

Cortical excitability in Duchenne muscular dystrophy

Clinical Neurophysiology, 2008
To investigate the probable cortical excitability changes in DMD by electrophysiological means.Sixteen cases with DMD, 10 age-matched control children (CC) and 10 healthy adult volunteers (AC) were studied with a transcranial magnetic stimulation (TMS) test battery composed of central conduction time, cortical silent period and paired TMS paradigm ...
V, Yayla, A E, Oge, F, Deymeer, H, Gurvit, S, Akca-Kalem, Y, Parman, P, Oflazer   +6 more
openaire   +3 more sources

Probing for cortical excitability

2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2011
This paper introduces a new method for measuring cortical excitability using an electrical probing stimulus via intracranial electroencephalography (iEEG). Stimuli consisted of 100 single bi-phasic pulses, delivered every 10 minutes. Neural excitability is estimated by extracting a feature from the iEEG responses to the stimuli, which we dub the mean ...
Dean R. Freestone, Anthony N. Burkitt, Alan Lai, Timothy S. Nelson, David B. Grayden, Simon J. Vogrin, Michael Murphy, Wendyl D'Souza, Radwa A. B. Badawy, Levin Kuhlmann, Mark J. Cook   +10 more
openaire   +2 more sources

Brain oscillations and frequency-dependent modulation of cortical excitability

Brain Stimulation, 2011
Item does not contain fulltextBackground Noninvasive brain stimulation is a powerful way to modify excitability of the cerebral cortex in humans and is increasingly used to treat psychiatric disorders.
Dennis J L G Schutter, Ruud Hortensius
exaly   +2 more sources

Acupuncture and the modulation of cortical excitability

NeuroReport, 2003
Although acupuncture is increasingly utilized for medical therapy, its mechanism of action remains uncertain. We used transcranial magnetic stimulation to demonstrate lateralized effects of motor cortex excitability with this technique. Right-sided reduction in motor cortex excitability and a tendency to the opposite effect on the left side was seen ...
Y L, Lo, S L, Cui
openaire   +2 more sources

Choline Excites Cortical Neurons

Science, 1979
In cats under halothane or methoxyflurane, iontophoretic applications of choline are only eight times weaker than applications of acetylcholine in evoking firing of neurons in the sensorimotor region of the cerebral cortex. The action of choline is suppressed by atropine but not by two agents that block choline uptake (hemicholinium-3 and ...
K, Krnjević, W, Reinhardt
openaire   +2 more sources

The rhythm of cortical excitability

Electroencephalography and Clinical Neurophysiology, 1980
Evidence has been gained which suggests that the spectral properties of the excitability cycle are other than those first proposed or assumed to exist in a number of experiments and theories. Instead of appearing as a sinusoidal cycle at the alpha frequency, the excitability cycle seems to be irregular and slower on the average than the EEG alpha ...
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Excitation and inhibition in the production of cortical afterdischarges

Electroencephalography and Clinical Neurophysiology, 1974
Abstract Subconvulsive electrical stimulation of the cortical surface evokes both excitation and inhibition of unit discharge. Although the inhibition phase appears to be more intense at higher stimulation rates, early excitation occupies a greater proportion of the interpulse interval as the effective stimulus frequency approaches an afterdischarge ...
E, Puil, R J, Reiffenstein, C, Triggle
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Cortical Excitability, Perseveration, and Stuttering

Journal of Speech and Hearing Research, 1971
Twenty-three male stutterers were compared with 25 male nonstutterers on measures of speech behavior, perseveration, and neurologic function. Flicker fusion threshold was determined as the single measure of perseveration, and multiple oral readings of a 218-word passage were recorded.
openaire   +2 more sources