R Fitzhugh
Overview
Explore the profile of R Fitzhugh including associated specialties, affiliations and a list of published articles.
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Articles
24
Citations
1239
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Recent Articles
1.
Fitzhugh R
Biophys J
. 2009 May;
1(6):445-66.
PMID: 19431309
Van der Pol's equation for a relaxation oscillator is generalized by the addition of terms to produce a pair of non-linear differential equations with either a stable singular point or...
2.
Fitzhugh R
Biophys J
. 1983 Apr;
42(1):11-6.
PMID: 6838978
A voltage clamp consisting of a sinusoidal voltage of amplitude V1 and frequency f, superimposed on a steady voltage level V0, is applied to the Hodgkin-Huxley model of the squid...
3.
Rapoport S, Fitzhugh R, Pettigrew K, Sundaram U, Ohno K
Am J Physiol
. 1982 Mar;
242(3):R339-48.
PMID: 7065229
A four-compartment model was derived to analyze drug exchange among cerebral capillary plasma, cerebrospinal fluid (CSF), and the brain extracellular and intracellular (or bound) compartments. Equations that were derived incorporated...
4.
Fitzhugh R
J Math Biol
. 1977 Jul;
4(3):203-36.
PMID: 894149
In the absence of detailed knowledge of how the CNS controls a muscle through its motor fibers, a reasonable hypothesis is that of optimal control. This hypothesis is studied using...
5.
Fitzhugh R
Biophys J
. 1976 Mar;
16(3):209-26.
PMID: 1252577
Computations show that cathodal rheobase increases with temperature from 0 degrees C to 30 degrees C. Anodal rheobase (stimulation at the end of an indefinitely long anodal pulse) also increases...
6.
Adelman Jr W, Fitzhugh R
Fed Proc
. 1975 Apr;
34(5):1322-9.
PMID: 1123087
Hodgkin and Huxley equations were modified to include the properties of an external diffusion barrier separated from the axolemma by a thin periaxonal space in which potassium ions accumulate as...
7.
8.
Fitzhugh R, Cole K
Biophys J
. 1973 Nov;
13(11):1125-40.
PMID: 4754194
Transient responses of a space-clamped squid axon membrane to step changes of voltage or current are often approximated by exponential functions of time, corresponding to a series resistance and a...
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