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Measurement of nerve and muscle potentials by mechanical stimulation of the anterior part of the earthworm (with the base installation Kobra3). P4010211

You can get the concept of:
Nerve and muscle potential, positive feedback, synaptic depression, synaptic assistance conduction velocity in median and lateral giant nerve fibers.

Principle:
By measuring the nerve and muscle potentials, the following topics:

    Differences in the sensitivity of the front and rear.
    Support effect.
    Conduction velocity and diameter of the fiber.
    Synaptic Depression.