Results 21 to 30 of about 762,494 (319)

Consequences of converting graded to action potentials upon neural information coding and energy efficiency [PDF]

open access: yes, 2014
Information is encoded in neural circuits using both graded and action potentials, converting between them within single neurons and successive processing layers. This conversion is accompanied by information loss and a drop in energy efficiency.
A Borst   +84 more
core   +3 more sources

Parametric analysis of the ionic concentrations effects in the behavior of the sinoatrial node

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2013
A sensibility study on the effect of ionic concentrations in the behavior of the sinoatrial node was carried out. The study was based on the model proposed by H. Zhang, A. V. Holden and M.R. Boyett.
Daniel Alfonso Sierra   +2 more
doaj   +1 more source

Modulation of neural cell membrane conductance by the herbal anxiolytic and antiepileptic drug aswal [PDF]

open access: yes, 2000
To evaluate the effects of aswal on ionic fluxes and neuronal excitation, we performed extracellular and whole cell patch clamp recordings on CA1 pyramidal neurons of guinea pigs and Long-Evans rats.
Grunze, Heinz   +3 more
core   +1 more source

Large and fast human pyramidal neurons associate with intelligence

open access: yeseLife, 2018
It is generally assumed that human intelligence relies on efficient processing by neurons in our brain. Although grey matter thickness and activity of temporal and frontal cortical areas correlate with IQ scores, no direct evidence exists that links ...
Natalia A Goriounova   +15 more
doaj   +1 more source

Modulation of Functional Connectivity Between Dopamine Neurons of the Rat Ventral Tegmental Area in vitro

open access: yesFrontiers in Integrative Neuroscience, 2019
Micro Electrode Arrays were used to simultaneously record spontaneous extracellular action potentials from 10 to 30 dopamine neurons in acute brain slices from the lateral Ventral Tegmental Area (VTA) of the rat.
Luuk van der Velden   +3 more
doaj   +1 more source

Intraoperative Microelectrode Recordings in Substantia Nigra Pars Reticulata in Anesthetized Rats

open access: yesFrontiers in Neuroscience, 2020
The Substantia Nigra pars reticulata (SNr) is a promising target for deep brain stimulation (DBS) to treat the gait and postural disturbances in Parkinson’s disease (PD).
Hanyan Li, George C. McConnell
doaj   +1 more source

Similarities between action potentials and acoustic pulses in a van der Waals fluid [PDF]

open access: yes, 2018
An action potential is typically described as a purely electrical change that propagates along the membrane of excitable cells. However, recent experiments have demonstrated that non-linear acoustic pulses that propagate along lipid interfaces and ...
Mussel, Matan, Schneider, Matthias F.
core   +3 more sources

Ventricular voltage‐gated ion channels: Detection, characteristics, mechanisms, and drug safety evaluation

open access: yesClinical and Translational Medicine, 2021
Cardiac voltage‐gated ion channels (VGICs) play critical roles in mediating cardiac electrophysiological signals, such as action potentials, to maintain normal heart excitability and contraction.
Lulan Chen   +4 more
doaj   +1 more source

Effects of sugammadex and rocuronium on electro-mechanical activity of cardiac myocytes [PDF]

open access: yesKorean Journal of Anesthesiology
Background Sugammadex reverses the effects of steroidal neuromuscular-blocking agents, such as rocuronium, by encapsulating these agents. Its cardiovascular adverse effects include QTc prolongation, hypotension, bradycardia, atrioventricular block ...
Oguzhan Arun   +6 more
doaj   +1 more source

A brief exposure to toluene vapor alters the intrinsic excitability of D2 medium spiny neurons in the rat ventral striatum

open access: yesFrontiers in Neuroscience, 2023
Although volatile organic solvents such as toluene are used for commercial and industrial uses, they are often voluntarily inhaled for their intoxicating and euphoric effects.
Michael Okas   +3 more
doaj   +1 more source

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