Results 51 to 60 of about 233,386 (243)

GABAergic modulation of beta power enhances motor adaptation in frontotemporal lobar degeneration

Alzheimer's &Dementia, EarlyView.
Abstract INTRODUCTION We examined how abnormal prefrontal neurophysiology and changes in gamma‐aminobutyric acid‐ergic (GABAergic) neurotransmission contribute to behavioral impairments in disorders associated with frontotemporal lobar degeneration (FTLD). METHODS We recorded magnetoencephalography during an adaptive visuomotor task from 11 people with
Laura E. Hughes, Natalie E. Adams, Matthew A. Rouse, Michelle Naessens, Alexander Shaw, Alexander G. Murley, Thomas E. Cope, Negin Holland, David Nesbitt, Duncan Street, David J. Whiteside, James B. Rowe   +11 more
wiley   +1 more source

Double-containment coil with enhanced winding mounting for transcranial magnetic stimulation with reduced acoustic noise [PDF]

arXiv, 2020
Objective: This work aims to reduce the acoustic noise level of transcranial magnetic stimulation (TMS) coils. TMS requires high currents (several thousand amperes) to be pulsed through the coil, which generates a loud acoustic impulse whose peak sound pressure level (SPL) can exceed 130 dB(Z).
arxiv  

Modular Pulse Synthesizer for Transcranial Magnetic Stimulation with Flexible User-Defined Pulse Shaping and Rapidly Changing Pulses in Sequences [PDF]

arXiv, 2022
The temporal shape of a pulse in transcranial magnetic stimulation (TMS) influences which neuron populations are activated preferentially as well as the strength and even direction of neuromodulation effects. Furthermore, various pulse shapes differ in their efficiency, coil heating, sensory perception, and clicking sound.
arxiv  

Does TMS increase BOLD activity at the site of stimulation? [PDF]

arXiv, 2021
Transcranial magnetic stimulation (TMS) is widely used for understanding brain function in neurologically intact subjects and for the treatment of various disorders. However, the precise neurophysiological effects of TMS at the site of stimulation remain poorly understood.
arxiv  

Neural electrodes for brain‐computer interface system: From rigid to soft

BMEMat, EarlyView.
Here, we review the development trends of neural electrodes in BCI. This paper highlights the critical role of electrodes in BCI systems, analyzes the limitations of rigid electrodes, and introduces various flexible electrodes. Furthermore, we discuss application scenarios and prospects of BCI electrode technology, aiming to provide valuable references
Dan Yang, Gongwei Tian, Jianhui Chen, Yan Liu, Esha Fatima, Jichuan Qiu, Nik Ahmad Nizam Nik Malek, Dianpeng Qi   +7 more
wiley   +1 more source

Deciphering the skeletal interoceptive circuitry to control bone homeostasis

BMEMat, EarlyView.
This review introduces the skeletal interoceptive circuitry, covering the ascending signals from bone tissues to the brain (sensors), the central neural circuits that integrate this information and dispatch commands (CPU), and the descending pathways that regulate bone homeostasis (effectors).
Yefeng Wu, Jiusi Guo, Zhen Chen, Fengwei Zhang, Billy Kwok Chong Chow, Zhuofan Chen, Kelvin Wai‐Kwok Yeung, Wei Qiao   +7 more
wiley   +1 more source

Remodelling of myelinated axons and oligodendrocyte differentiation is stimulated by environmental enrichment in the young adult brain

European Journal of Neuroscience, Volume 56, Issue 12, Page 6099-6114, December 2022., 2022
Using environmental enrichment to physiologically induce neuroplasticity in the young adult mouse, we find dynamic structural remodelling of axons and their pre‐existing myelin sheaths. Additionally, we find that oligodendrocytes respond primarily with an increase in differentiation and regionally specific decreases in progenitor density. These results
Madeline Nicholson, Rhiannon J. Wood, David G. Gonsalvez, Anthony J. Hannan, Jessica L. Fletcher, Junhua Xiao, Simon S. Murray   +6 more
wiley   +1 more source

The recruitment of indirect waves within primary motor cortex during motor imagery: A directional transcranial magnetic stimulation study

European Journal of Neuroscience, Volume 56, Issue 12, Page 6187-6200, December 2022., 2022
Motor imagery (MI) refers to the mental simulation of an action without overt movement. As MI is an important field of research in cognitive neuroscience and motor rehabilitation, it essential to decipher the neural circuits underlying imagined movements.
Cécilia Neige, Valentin Ciechelski, Florent Lebon   +2 more
wiley   +1 more source

Quasistatic approximation in neuromodulation [PDF]

We define and explain the quasistatic approximation (QSA) as applied to field modeling for electrical and magnetic stimulation. Neuromodulation analysis pipelines include discrete stages, and QSA is applied specifically when calculating the electric and magnetic fields generated in tissues by a given stimulation dose.
arxiv   +1 more source

Timing is everything: The effect of early‐life seizures on developing neuronal circuits subserving spatial memory

Epilepsia Open, EarlyView.
Abstract Spatial memory, the aspect of memory involving encoding and retrieval of information regarding one's environment and spatial orientation, is a complex biological function incorporating multiple neuronal networks. Hippocampus‐dependent spatial memory is not innate and emerges during development in both humans and rodents.
Gregory L. Holmes
wiley   +1 more source