Results 81 to 90 of about 753,295 (290)

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

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

Rhythmic light flicker rescues hippocampal low gamma and protects ischemic neurons by enhancing presynaptic plasticity

Nature Communications, 2020
Brain ischemia has been associated with deficits in neural oscillations. Here in an animal model, the authors show that modulation of low-gamma oscillations using a light flicker can restore low gamma oscillations and protect ischemic neurons.
Lifeng Zheng, Mei Yu, Rui Lin, Yunxuan Wang, Zhan Zhuo, Ning Cheng, Mengzhen Wang, Yongqiang Tang, Liping Wang, Sheng-Tao Hou   +9 more
doaj   +1 more source

Discrepancies Between Micro Versus Macroscale Viscoelastic Properties in a Microplastic‐Tissue Composite Model

Advanced Engineering Materials, EarlyView.
This study explores the discrepancies between bulk mechanics and spatial mapping in a tissue‐mimetic hydrogel model. Microplastic particles create localized stiff mechanical microenvironments that are detectable by cellular‐scale nanoindentation but leave bulk properties unchanged as measured by rheology.
Ahron T. Verschleisser, Baptiste Le Roi, Omri Leshem, Joshua M. Grolman   +3 more
wiley   +1 more source

The Control of Movements via Motor Gamma Oscillations

Frontiers in Human Neuroscience, 2022
The ability to perform movements is vital for our daily life. Our actions are embedded in a complex environment where we need to deal efficiently in the face of unforeseen events. Neural oscillations play an important role in basic sensorimotor processes
José Luis Ulloa
doaj   +1 more source

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

Advanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Cortico-striatal gamma oscillations are modulated by dopamine D3 receptors in dyskinetic rats

Neural Regeneration Research
Long-term levodopa administration can lead to the development of levodopa-induced dyskinesia. Gamma oscillations are a widely recognized hallmark of abnormal neural electrical activity in levodopa-induced dyskinesia.
Pengfei Wang, Yuewei Bi, Min Li, Jiazhi Chen, Zhuyong Wang, Huantao Wen, Ming Zhou, Minjie Luo, Wangming Zhang   +8 more
doaj   +1 more source

Cell‐specific contribution to gamma oscillations

The Journal of Physiology, 2010
Gamma oscillations are a particularly prominent form of rhythmic activity occurring during wakefulness and attentive behaviour that result from synchronous activity of cortical neurons at frequencies ranging between 20 and 80 Hz. Abnormalities in these oscillations might underlie neuropsychiatric disorders such as schizophrenia (Uhlhaas et al.
Caillard, Olivier, Debanne, Dominique
openaire   +4 more sources

Oszillatorische Gamma-Band-Aktivität bei der Verarbeitung auditorischer Reize im Kurzzeitgedächtnis im MEG [PDF]

, 2010
Recent studies have suggested an important role of cortical gamma oscillatory activity (30-100 Hz) as a correlate of encoding, maintaining and retrieving auditory, visual or tactile information in and from memory.
Heidegger, Tonio
core  

High frequency oscillations as a correlate of visual perception [PDF]

, 2011
“NOTICE: this is the author’s version of a work that was accepted for publication in International journal of psychophysiology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other ...
Busch, Niko A., Jasna Martinovic, Martinovic, Jasna, Niko A. Busch   +3 more
core   +1 more source