An Electroencephalogram

Multiple Choice

An electroencephalogram

A) is a record of action potentials in the brain.
B) records the potential difference between two points on the scalp's surface.
C) is a pattern of complex waves with amplitudes similar to those of action potentials.
D) is both is a record of action potentials in the brain and records the potential difference between two points on the scalp's surface.
E) all of these are correct: "records the potential difference between two points on the scalp's surface","is a record of action potentials in the brain",and "records the potential difference between two points on the scalp's surface" are correct