Results 51 to 60 of about 930,593 (248)

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

Mixed-mode oscillations with multiple time scales [PDF]

, 2010
Mixed-mode oscillations (MMOs) are trajectories of a dynamical system in which there is an alternation between oscillations of distinct large and small amplitudes.
Desroches, MF, Osinga, HM, Kuehn, Christian, Guckenheimer, J, Wechselberger, Martin, Krauskopf, B   +5 more
core  

Transition from stochastic to deterministic behavior in calcium oscillations [PDF]

, 2005
Simulation and modeling is becoming more and more important when studying complex biochemical systems. Most often, ordinary differential equations are employed for this purpose.
Green, Anne K., Kummer, U., Ursula Kummer, C. Jane Dixon, Marhl, Marko, Pahle, J., Krajnc, Borut, Pahle, Jürgen, Dixon, C. Jane, Kummer, Ursula, Marko Marhl, Jürgen Pahle, Kummer, U. (Ursula), Borut Krajnc, Green, A. K., Anne K. Green, Dixon, C. J., Marhl, M., Krainc, B.   +18 more
core   +1 more source

Slow oscillations in systems with inertial vibration exciters [PDF]

, 2020
The problem of the occurrence of semi-slow speed oscillations of an unbalanced rotor during its passage through the resonance zone has been solved using the method of direct separation of motions.
Nikolay Yaroshevich, Тetjana Yaroshevich, Oleksandr Herasymchuk, Vitalii Puts   +3 more
core   +1 more source

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park, Eun‐Hyuk Choi, Jorge Otero‐Millan, David S. Zee, Jeong‐Yoon Choi, Ji‐Soo Kim   +5 more
wiley   +1 more source

Diurnal influences on electrophysiological oscillations and coupling in the dorsal striatum and cerebellar cortex of the anesthetized rat

Frontiers in Systems Neuroscience, 2014
Circadian rhythms modulate behavioral processes over a 24h period through clock gene expression. What is largely unknown is how these molecular influences shape neural activity in different brain areas.
Ariana eFrederick, Jonathan eBourget-Murray, Jonathan eBourget-Murray, C. Andrew eChapman, Shimon eAmir, Richard eCourtemanche   +5 more
doaj   +1 more source

Setting up the speech production network : how oscillations contribute to lateralized information routing [PDF]

, 2012
Speech production involves widely distributed brain regions. This MEG study focuses on the spectro-temporal dynamics that contribute to the setup of this network. In 21 participants performing a cue-target reading paradigm, we analyzed local oscillations
Johannes Gehrig, Michael Wibral, Arnold, Christiane, Gehrig, Johannes, Christiane Arnold, Johannes eGehrig, Christian A Kell, Kell, Christian Alexander, Christiane eArnold, Michael eWibral, Christian A. Kell, Wibral, Michael   +11 more
core   +1 more source

Boundary‐Dependent Sleep–Wake Dysregulation in Idiopathic Hypersomnia

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Idiopathic hypersomnia (IH) presents with excessive daytime sleepiness (EDS) despite apparently preserved nocturnal sleep, challenging traditional models of hypersomnolence based on sleep loss or fragmentation. We aimed to test the hypothesis that EDS in IH reflects excessive stabilization of the sleep state, consistent with ...
Samantha Mombelli, Karine Lacourse, Hélène Blais, Anne‐Sophie Deshaies‐Rugama, Cynthia Thompson, Alex Desautels, Jacques Montplaisir, Milan Nigam, Christophe Moderie, Boshra Khajehpiri, Catherine Duclos, Jean Marc Lina, Julie Carrier, Nadia Gosselin   +13 more
wiley   +1 more source

Theta Oscillations Alternate With High Amplitude Neocortical Population Within Synchronized States

Frontiers in Neuroscience, 2019
Synchronized states are marked by large-amplitude low-frequency oscillations in the cortex. These states can be seen during quiet waking or slow-wave sleep. Within synchronized states, previous studies have noted a plethora of different types of activity,
Erin Munro Krull, Erin Munro Krull, Shuzo Sakata, Taro Toyoizumi   +3 more
doaj   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source