Neuron As RC Circuit Explained And Analysis of the Time Constant Tau | Clip
Welcome to Science With Tal!
In this clip of the Signal Propagation in the Neuron video, we will discuss how we can model the passive propagation of the signal in the neuron as an RC circuit. Accordingly, we will also discuss the associated time constant tau and how it affects propagation. You will see here and in the comment section the time stamps associated with each topic that I’ve covered.
Note that the graphs are not up to scale but the general shapes of the curves reflect the true behaviors of the variables in question.
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Timestamps
0:00 Introduction
0:22 Quick note on what we will cover
1:25 Description and analysis of the capacitive current only
5:18 Derivation of the necessary equation to describe our model
8:06 Graphical analysis of the time constant
11:04 Analysis of the capacitive and resistive current (RC)
11:50 Effects of larger/smaller time constant
13:14 Conclusion & references
Resources used
Here is a list of the resources that I’ve used to produce this video. (Author: title resource)
Dale Purves: Neuroscience (6th edition)
Eric Kandel: Principles of neural science (6th edition)
Alan Hodgkin & Andrew Huxley: A quantitative description of membrane current and its application to conduction and excitation in nerve
Alan Hodgkin & William Albert Hugh Rushton: The electrical constants of a crustacean nerve fibre.
To have more information on these resources, you can refer to the conclusion section where a more formal citation is provided.
Video credits
Writing: Tal Klimenko
Voice: Tal Klimenko
Animations: Tal Klimenko
Drawings: Tal Klimenko
Editing: Tal Klimenko
Introductory jingle: Thierry Du Sablond
Conclusion music: lukrembo - jay ( • lukrembo - jay (royalty free vlog music) )
