Search Results - "Chiappa, K H"

Transcranial magnetic stimulation identifies upper motor neuron involvement in motor neuron disease by TRIGGS, W. J, MENKES, M. D, ONORATO, M. J, YAN, R. S.-H, YOUNG, M. S, NEWELL, K, SANDER, H. W, SOTO, O, CHIAPPA, K. H, CROS, D

“…To evaluate the sensitivity of transcranial magnetic stimulation (TMS) to identify upper motor neuron involvement in patients with motor neuron disease…”
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Functional magnetic resonance imaging and transcranial magnetic stimulation : Complementary approaches in the evaluation of cortical motor function by KRINGS, T, BUCHBINDER, B. R, BUTLER, W. E, CHIAPPA, K. H, JIANG, H. J, COSGROVE, G. R, ROSEN, B. R

“…Functional magnetic resonance imaging (fMRI) and transcranial magnetic stimulation (TMS) represent different approaches to mapping the motor cortex. fMRI…”
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Hemodynamic changes in simple partial epilepsy : A functional MRI study by KRINGS, T, TÖPPER, R, REINGES, M. H. T, FOLTYS, H, SPETZGER, U, CHIAPPA, K. H, GILSBACH, J. M, THRON, A

“…We performed functional MRI (fMRI) on a patient with a mass lesion while she happened to experience a simple partial seizure. We used regional T2* signal…”
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Hemispheric threshold differences for motor evoked potentials produced by magnetic coil stimulation by MACDONELL, R. A. L, SHAPIRO, B. E, CHIAPPA, K. H, HELMERS, S. L, CROS, D, DAY, B. J, SHAHANI, B. T

“…A brief monophasic pulse through an electromagnetic coil preferentially activates motor pathways of each hemisphere, depending on the direction of coil current…”
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Physiological motor asymmetry in human handedness: evidence from transcranial magnetic stimulation by Triggs, W J, Calvanio, R, Macdonell, R A, Cros, D, Chiappa, K H

“…We hypothesized that human handedness might be associated with measurable differences in the excitability of the motor system. We compared the thresholds for…”
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Accuracy of EEG dipole source localization using implanted sources in the human brain by Krings, Timo, Chiappa, Keith H, Neil Cuffin, B, Cochius, Jeffrey I, Connolly, Sean, Rees Cosgrove, G

“…Objectives: The location of electrical sources in the brain can be estimated by calculating inverse solutions in which the location, amplitude and orientation…”
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Periodic epileptiform discharges in hypoxic encephalopathy: BiPLEDs and GPEDs as a poor prognosis for survival by San-juan, O.D, Chiappa, K.H, Costello, D.J, Cole, A.J

“…Abstract Introduction Electrophysiologic tests in hypoxic encephalopathy consist of EEG and evoked/event-related potential studies. In most studies the…”
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Hemodynamic and Metabolic Aspects of Photosensitive Epilepsy Revealed by Functional Magnetic Resonance Imaging and Magnetic Resonance Spectroscopy by Hill, Rosamund A., Chiappa, Keith H., Huang‐Hellinger, Frank, Jenkins, Bruce G.

“…Purpose: To study in humans the hemodynamic and metabolic consequences of both photic stimulationtriggered and spontaneous generalized epileptiform discharges…”
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Accuracy of electroencephalographic dipole localization of epileptiform activities associated with focal brain lesions by Krings, T, Chiappa, K H, Cuffin, B N, Buchbinder, B R, Cosgrove, G R

“…We evaluated the accuracy of an electroencephalographic (EEG) localization technique (dipole inverse solution) in a consecutive series of 12 focal…”
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Motor inhibition and excitation are independent effects of magnetic cortical stimulation by Triggs, W J, Macdonell, R A, Cros, D, Chiappa, K H, Shahani, B T, Day, B J

“…We administered magnetic cortical stimulation (MCS) during voluntary contraction of intrinsic hand muscles to 8 patients with motor neuron disease (MND), 5…”
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Cervical magnetic stimulation by CROS, D, CHIAPPA, K. H, GOMINAK, S, FANG, J, SANTAMARIA, J, KING, P. J, SHAHANI, B. T

“…We stimulated the cervical region with a 9-cm-diameter magnetic coil on centered on the spinous processes in 21 normal subjects. We obtained maximal amplitudes…”
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Facilitation of magnetic motor evoked potentials during the cortical stimulation silent period by TRIGGS, W. J, KIERS, L, CROS, D, FANG, J, CHIAPPA, K. H

“…We investigated the relationship between stimulus intensity and magnetic motor evoked potentials (MEPs) elicited 100 msec after a conditioning stimulus that…”
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Cortical and spinal motor excitability during the transcranial magnetic stimulation silent period in humans by Triggs, W J, Cros, D, Macdonell, R A, Chiappa, K H, Fang, J, Day, B J

“…We investigated the electromyographic silent period in abductor pollicis brevis (APB) and flexor carpi radialis muscles following transcranial magnetic…”
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EEG during MR imaging : differentiation of movement artifact from paroxysmal cortical activity by HILL, R. A, CHIAPPA, K. H, HUANG-HELLINGER, F, JENKINS, B. G

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Statistical issues concerning computerized analysis of brainwave topography by Oken, B S, Chiappa, K H

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Transcranial motor evoked potentials by Chiappa, K H

“…History, methodology and description of recording motor action potentials elicited by magnetic stimulation of the cortex through the skull. Summary of clinical…”
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Evoked potentials in Guillain-Barré syndrome by ROPPER, A. H, CHIAPPA, K. H

“…We studied evoked potentials (EPs) in 27 patients with typical acute Guillain-Barré syndrome and 3 with Fisher's syndrome. Three of 21 had BAEP abnormalities:…”
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Significance of Spontaneous Epileptiform Abnormalities Associated With a Photoparoxysmal Response by Gilliam, Frank G, Chiappa, Keith H

“…Article abstract-Spontaneous epileptiform abnormalities (SEAs) are reported to occur in up to 65% of patients with a photoparoxysmal response (PPR). Although…”
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Electrophysiologic monitoring in the intensive care unit by Hill, R A, Chiappa, K H

“…Electroencephalography (EEG) and evoked potential studies are established monitoring tools in the neurological intensive care unit (ICU). These…”
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Crossed inhibition in the human motor system by Chiappa, K H, Cros, D, Kiers, L, Triggs, W, Clouston, P, Fang, J

“…We used transcranial magnetic stimulation in humans to investigate the effect of focal unilateral stimulation of the motor cortex on the function of the…”
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