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Biophysical Journal 9: 269-277 (1969)
© 1969 the Biophysical Society

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Temperature Dependence of Oscillation in Squid Axons

Comparison of Experiments with Computations

Rita Guttman

ABSTRACT

The temperature dependence of the oscillatory behavior of experimental and computed axons was compared. In the experimental study of space-clamped giant axons of the squid, small oscillations after a single threshold spike were measured using the double glucose gap over the temperature range 10°-30°C during treatment with three concentrations of external CaCl2 solutions. Calcium concentration had little effect on frequency, as was found also by Huxley in his computations at 18.5°C for a fiber at rest. The Q10 both for the experimental and for the computed axon of FitzHugh was 2.25. The experimental measurements of the frequency of oscillations near threshold agree extremely well with the Hodgkin-Huxley calculations.






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Copyright © 1969 by the Biophysical Society.