Compound action potential
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In neurophysiology, the Compound Action Potential (or CAP) are evoked potentials representing the summation of synchronized individual action potentials generated by a group of neurons or muscle fibers in response to a stimulus. The CAP waveform shares morphological properties with the extracellular recording of individual action potentials.
In most occurrences, the CAP refers to:
- the auditory compound action potential (CAP), generated by the auditory nerve, or
- the compound muscle action potential (CMAP).