PEX-03-06 - Exercise 3: Neurophysiology of Nerve Impulses:...

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Unformatted text preview: Exercise 3: Neurophysiology of Nerve Impulses: Activity 6: The Action Potential: Coding for Stimulus Intensity Lab Report Pre-lab Quiz Results You have not completed the Pre-lab Quiz. 12/07/11 page 1 12/07/11 page 2 Experiment Results Predict Question: Predict Question: What effect will the increased stimulus intensity have on the frequency of action potentials? Your answer : c. The frequency of action potentials will increase. Stop & Think Questions: 4. At the site of stimulation, the stimulus keeps the membrane of the axon at threshold for a long time, but this depolarization does not spread to the recording electrode. After one action potential has been generated and the axon has fully recovered from its absolute and relative refractory periods, the stimulus is still present to generate another action potential Measure the time (in milliseconds) between action potentials. This interval should be a bit longer than the relative refractory period (measured in Activity 5)....
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This note was uploaded on 02/06/2012 for the course ZOOL 2304 taught by Professor Gollahon during the Fall '11 term at Texas Tech.

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PEX-03-06 - Exercise 3: Neurophysiology of Nerve Impulses:...

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