Action Potential
Linking demyelination to compound action potential dispersion with a spike-diffuse-spike approach
... compound action potential expected from a bun- dle of simultaneously activated axons (see Methods, ...compound action poten- ...compound action potential ...compound action ...
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The Action Potential, Synaptic Transmission, and Maintenance of Nerve Function
... Initiation of the Action Potential. In most neurons, the axon hillock (initial segment) is the trigger zone that gen- erates the action potential. The membrane of the initial segment contains ...
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Upper limit on the thermodynamic information content of an action potential
... each action potential carries a quantity on the order of one bit of Shannon entropy to study information in the ...use action potentials to estimate the quantities of information processed in brain ...
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Uncertainty Propagation in Nerve Impulses Through the Action Potential Mechanism
... Fig. 2 In panel a two current pulses are applied to a deterministic neuron with the nominal values for the parameters listed in Table 2. The first pulse is not strong enough to elicit a spike, the second stronger pulse ...
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Ionic Mechanisms of Desflurane on Prolongation of Action Potential Duration in Rat Ventricular Myocytes
... tle is known about the mechanisms that underlie these actions. We investigated the effects of desflurane on action potential (AP) duration and underlying electrophys- iological mechanisms in rat ventricular ...
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Cardiac dynamics: a simplified model for action potential propagation
... the action potential, as for instance, the dependence of the AP duration (APD, time during which the voltage is above a certain threshold, characterizing the duration of the excited state) or the conduction ...
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Dispersion of cardiac action potential duration and the initiation of re-entry: A computational study
... The behaviour of re-entry in 3 D tissue is more complex than in 2 D, especially when the effects of rotational anisotropy and transmural differences in action potential shape and duration are taken into ...
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The effect of myocardial action potential duration on cardiac pumping efficacy: a computational study
... the action potential duration (APD) have been carried out, most of them are based only on electrophysiological factors of the heart and lack experiments that consider cardiac mechanical and ...
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Heterogeneity of the action potential duration is required for sustained atrial fibrillation
... of action potential duration of the atria similar to observations in patients with ...upon action potential duration ...the action potential ...the action potential ...
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Sodium Calcium Action Potential Associated with Contraction in the Heliozoan Actinocoryne Contractilis
... In Ca2+-free solutions containing less than l m m o l P 1 EGTA, rapid contraction followed the action potential, although after prolonged sojourn in such solutions, and several cycles of[r] ...
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Action potential in HH model
... After this when ion flows from open to inactive phase then the channel switch to inactive state and never opened again. And when ion flows from inactive to closed phase the channel never switched back to closed state ...
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SODIUM AND POTASSIUM CONDUCTANCE CHANGES DURING A MEMBRANE ACTION POTENTIAL
... Hodgkin & Huxley calculated the time course of the sodium and potassium conductance change during the course of an action potential and made the total conductance change equal to the sum[r] ...
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Understanding the Action Potential Generation in the Hodgkin-Huxley model
... ―action potential‖ involving the flow of sodium(Na) and ...potassium(K).The potential inside the cell membrane under resting condition is about -70Mv which is known to be the resting membrane ...
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Action Potential Initiation in the Hodgkin-Huxley Model
... an action potential in terms of the opening and closing of voltage gated ion ...to action potentials propagated in cortical neurons in vivo or in vitro, where cortical neurons form large, ...
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Action Potential Modulation of Neural Spin Networks Suggests Possible Role of Spin
... Figure 1. Electric field strength inside neural membrane during the course of an action potential. The calculation is down by assuming a typical membrane thickness of about 10 nm and the results are shown ...
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Characterization of Lymnaea Neurones by determination of Action Potential Trajectories
... Modification of the phase plane of a type 1 action potential visceral K cell by injected current.. The amount of current injected is shown at the left of each phase plane portrait and th[r] ...
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An Auxiliary Educational Tool for Propagating Single and Compound Nerve Action Potential
... membrane potential generation, ...membrane potential development, threshold stimulus, refractoriness, conduction in myelinated fiber, myelin and temperature effect on conduction ...tion potential ...
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Sodium and Calcium Dependent Mechanisms in the Action Potential of the Secretory Epithelium of a Clam Mantle
... This epithelium shows two types of action potentials, Key words: clam mantle, epithelial excitability, TTX-insensitive sodium channel, calcium channel, secretory epithelium.... depending[r] ...
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Noninvasive recording of the Mauthner neurone action potential in larval zebrafish
... The prominent negative potential M recorded intracranially upper trace is identical in waveform and amplitude to the spike recorded by Eaton & Farley 1975 and shown by them to be the M-c[r] ...
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Development of biocompatible Parylene neurocages for action potential stimulation and recording
... any potential contaminants (including oxygen which can oxidize the deposition metal) and to increase the mean free path of the molecules boiled off, ensuring the majority of them reach the ...
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