When Richard Caton first measured fluctuations on a voltmeter from electrodes placed on the scalp of a human subject, he was recording what we now call:
A)an electroencephalogram.
B)the action potential.
C)a magnetoencephalogram.
D)axonal conductance.

Question

Quizplus · Accepted Answer

Richard Caton's measurements of electrical activity from the scalp were the early recordings of what we now refer to as an electroencephalogram (EEG), which captures the electrical activity of the brain.

When Richard Caton First Measured Fluctuations on a Voltmeter from Electrodes