Question: Suppose that an action potential in a 1 m diameter unmyelinated fiber has a speed of 1 . 3 m / s . Estimate how

Suppose that an action potential in a 1 m diameter unmyelinated fiber has a
speed of 1.3 m/s. Estimate how long it takes a signal to propagate from the
brain to a finger (a distance of about 1 m). Repeat the calculation for a 10 m
diameter myelinated axon that has a conduction speed of 85 m/s. Speculate on
the signicance of these results for playing the piano.

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