Results 61 to 70 of about 72,887 (299)

Brain stimulation competes with ongoing oscillations for control of spike timing in the primate brain

PLoS Biology, 2022
Transcranial alternating current stimulation (tACS) is a popular method for modulating brain activity noninvasively. In particular, tACS is often used as a targeted intervention that enhances a neural oscillation at a specific frequency to affect a ...
Matthew R. Krause, Pedro G. Vieira, Jean-Philippe Thivierge, Christopher C. Pack   +3 more
doaj   +2 more sources

Beta oscillations in vision: a (preconscious) neural mechanism for the dorsal visual stream?

Frontiers in Psychology, 2023
Neural oscillations in alpha (8–12 Hz) and beta (13–30 Hz) frequency bands are thought to reflect feedback/reentrant loops and large-scale cortical interactions.
Giuseppe Di Dona, Giuseppe Di Dona, Luca Ronconi, Luca Ronconi   +3 more
doaj   +1 more source

Ontogeny of neural circuits underlying spatial memory in the rat [PDF]

, 2012
Spatial memory is a well-characterized psychological function in both humans and rodents. The combined computations of a network of systems including place cells in the hippocampus, grid cells in the medial entorhinal cortex and head direction cells ...
Langston, Rosamund F.; id_orcid, Ainge, James A., James Alexander Ainge, Rosamund Fay Langston, Langston, Rosamund F., Rosamund F. Langston, Ainge, James Alexander, James A. Ainge   +7 more
core   +1 more source

Gamma flicker triggers attentional selection without awareness [PDF]

, 2009
Gamma band modulations in neural activity have been proposed to mediate attentional processes. To support a causal link between gamma activity and attentional selection, we attempt to evoke gamma oscillations by a 50-Hz subliminal flicker. We find that a
Usher, Marius, Cheadle, SW, Muller, Hermann J., Parton, A., Parton, A, Müller, HJ, Bauer, F., Bauer, F, Cheadle, Samuel, Mueller, HJ, Usher, M   +10 more
core   +1 more source

A design principle of spindle oscillations in mammalian sleep

iScience, 2022
Summary: Neural oscillations are mainly regulated by molecular mechanisms and network connectivity of neurons. Large-scale simulations of neuronal networks have driven the population-level understanding of neural oscillations.
Tetsuya Yamada, Shoi Shi, Hiroki R. Ueda
doaj   +1 more source

Causal evidence that intrinsic beta frequency is relevant for enhanced signal propagation in the motor system as shown through rhythmic TMS [PDF]

, 2016
Correlative evidence provides support for the idea that brain oscillations underpin neural computations. Recent work using rhythmic stimulation techniques in humans provide causal evidence but the interactions of these external signals with intrinsic ...
Brooks, Joseph L., Bauer, M, Driver, Jon, Bestmann, S, Brooks, Joseph L, Penny, Will, Thut, Gregor, Thut, G, Economides, M, Driver, J, Brooks, JL, Penny, W, Economides, Marcos, Romei, Vincenzo, Bestmann, Sven, Romei, V, Bauer, Markus   +16 more
core   +1 more source

Efficacy of Intermittent Theta‐Burst Stimulation for Prolonged Disorders of Consciousness: A Prospective, Randomized, Controlled Trial

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Emerging evidence suggests that low‐frequency neural oscillations are dynamically regulated by consciousness levels, with the recovery of low cortical activity potentially serving as a neurophysiological substrate for conscious emergence. Targeted enhancement of these low‐frequency rhythms in patients with disorders of consciousness
Chuan Xu, Jun Hu, Qianqian Wu, Min Wu, Yamei Yu, Hangcheng Li, Jian Gao, Jingqi Li, Nai Ding, Jie Yu, Benyan Luo   +10 more
wiley   +1 more source

Neural masses and fields: modeling the dynamics of brain activity. [PDF]

, 2013
This technical note introduces a conductance-based neural field model that combines biologically realistic synaptic dynamics—based on transmembrane currents—with neural field equations, describing the propagation of spikes over the cortical surface. This
Pinotsis, D, Robinson, P., Dimitris Pinotsis, Graben, P. B., Dimitris ePinotsis, Beim Graben, P, Karl Friston, Karl eFriston, Friston, K, Peter beim Graben, Peter eRobinson, Robinson, P, Pinotsis, D. A., Peter Robinson, Friston, K. J.   +14 more
core   +1 more source

Characterizing Cutaneous α‐Synuclein Deposition and Seeding Activity in Parkinson's Disease Subtypes

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cutaneous phosphorylated α‐synuclein (p‐syn) and α‐synuclein seeding activity are promising biomarkers for Parkinson's disease (PD), but their clinical value remains uncertain due to disease heterogeneity. This study evaluates these two biomarkers in PD patients to inform phenotype‐specific diagnosis and disease severity assessment ...
Yuting Jin, Tianyuan Yang, Minglei Liu, Haiyang Luo, Jing Yuan, Ke Zhang, Xinsheng Han, Jing Yang, Yuming Xu   +8 more
wiley   +1 more source

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