Results 61 to 70 of about 32,664 (289)

Mapping transient hyperventilation induced alterations with estimates of the multi-scale dynamics of BOLD signal.

Frontiers in Neuroinformatics, 2009
Temporal blood oxygen level dependent (BOLD) contrast signals in functional MRI during rest may be characterized by power spectral distribution (PSD) trends of the form 1/f α.
Vesa J Kiviniemi, Jukka Remes, Jukka Remes, Tuomo Starck, Juha Nikkinen, Marianne Haapea, Olli Silven, Osmo Tervonen   +7 more
doaj   +1 more source

Hyperventilation and brain oxygenation [PDF]

, 2013
BackgroundWhile the decrease in blood carbon dioxide (CO2 ) secondary to hyperventilation is generally accepted to play a major role in the decrease of cerebral tissue oxygen saturation (SctO2 ), it remains unclear if the associated systemic hemodynamic ...
TROMBERG, BJ, ALEXANDER, BS, GELB, AW, YU, Z, MANTULIN, WW, CERUSSI, AE, MENG, L, LEE, C   +7 more
core   +1 more source

Unique EEG signature of atypical absence seizures in SYNGAP1‐related developmental and epileptic encephalopathy

Epileptic Disorders, EarlyView.
Rainier Mark Loidor L. Rapal, Joshua Chang, Douglas Nordli III   +2 more
wiley   +1 more source

Correlation of polygenic risk score and clinical phenotype in patients with genetic generalized epilepsy

Epilepsia, EarlyView.
Abstract Objective The polygenic risk score (PRS) for individuals with genetic generalized epilepsy (GGE) quantifies the common risk variants in genes identified in genome‐wide association studies. We hypothesized that the phenotype of GGE patients differs based on their GGE PRS. Methods We identified participants with highest (n = 59) versus lowest (n 
Sophie von Brauchitsch, Nils Hartung, Robin A. Karge, Bobby Koeleman, Samuel F. Berkovic, Danielle M. Andrade, Francesca Bisulli, Antonio Gambardella, Renzo Guerrini, Ingrid E. Scheffer, Ingo Helbig, Wolfram S. Kunz, Holger Lerche, Hiltrud Muhle, Christian Boßelmann, Savvas S. Papacostas, Mark I. Rees, Sanjay M. Sisodiya, Pasquale Striano, Lynnette Sadleir, Yvonne Weber, Dennis Lal, Costin Leu, Philipp S. Reif, Stefan Wolking, Felix Rosenow, Karl Martin Klein, for the Epi25 Collaborative   +27 more
wiley   +1 more source

Metabolic mimicry of perioral myoclonia with absences: A signature of thalamocortical instability in childhood‐onset ornithine transcarbamylase deficiency

Epileptic Disorders, EarlyView.
José Augusto Bragatti, Letícia Grigoletto   +1 more
wiley   +1 more source

Epilepsy syndromes classification

Epilepsia Open, EarlyView.
Abstract Epilepsy syndromes are distinct electroclinical entities which have been recently defined by the International League Against Epilepsy Nosology and Definitions Task Force. Each syndrome is associated with “a characteristic cluster of clinical and EEG features, often supported by specific etiologic findings”.
Elaine C. Wirrell, Nicola Specchio, Rima Nabbout, Phillip L. Pearl, Kate Riney   +4 more
wiley   +1 more source

EEG Veränderung bei Hyperventilation: Das Powerspektrum-EEG unter kapnographisch kontrollierter Hyperventilation [PDF]

, 2020
EEG Veränderung bei Hyperventilation: Das Powerspektrum-EEG unter kapnographisch kontrollierter Hyperventilation. (Absanullah Madad Fassli, Ulrich Stephani) Einleitung: Hyperventilation dient seit Jahrzehnten als Provokationstest bei der ...
Madad Fassli, Ahsannullah
core   +1 more source

Absence seizures: Update on signaling mechanisms and networks

Epilepsia Open, EarlyView.
Abstract Absence seizures (AS) are a hallmark of genetic generalized epilepsies (GGE), characterized by brief episodes of impaired consciousness accompanied by electroencephalographic spike‐and‐wave discharges (SWDs). Traditionally attributed to cortico‐thalamo‐cortical (CTC) dysrhythmia, emerging evidence suggests a more intricate pathophysiological ...
Ozlem Akman, Filiz Onat
wiley   +1 more source

Noninvasive Technique for Evaluation of Cerebral Edema in Patients with Brain Injury

Общая реаниматология, 2007
Objective: to monitor the efficiency of intensive therapy for brain injury, which presents a great difficulty due to the fact that available noninvasive monitoring techniques for intracranial processes are unavailable. The present study was undertaken to
I. G Bobrinskaya, E. F Bilalova, V. V. Moroz, V. N Troyan, O. N Moskovets, Yu. S. Shupenin   +5 more
doaj   +1 more source

Oxygen cost of voluntary hyperventilation

, 1959
The oxygen cost of voluntary hyperventilation was measured using an open circuit technique with three variations, unaided hyperventilation of air, breathing through an increased dead space and adding carbon dioxide to the inspired air.
John F. Murray
core   +1 more source