neurophysiology - the branch of neuroscience that studies the physiology of the nervous system

alpha rhythm, alpha wave - the normal brainwave in the electroencephalogram of a person who is awake but relaxed; occurs with a frequency of 8-12 hertz

beta rhythm, beta wave - the normal brainwave in the encephalogram of a person who is awake and alert; occurs with a frequency between 12 and 30 hertz

bioelectricity - electric phenomena in animals or plants

delta rhythm, delta wave - the normal brainwave in the encephalogram of a person in deep dreamless sleep; occurs with high voltage and low frequency (1 to 4 hertz)

theta rhythm, theta wave - the normal brainwave in the encephalogram of a person who is awake but relaxed and drowsy; occurs with low frequency and low amplitude

discernment, savvy, understanding, apprehension - the cognitive condition of someone who understands; "he has virtually no understanding of social cause and effect"

light - mental understanding as an enlightening experience; "he finally saw the light"; "can you shed light on this problem?"

revelation - an enlightening or astonishing disclosure

breakthrough, find, discovery - a productive insight

flash - a sudden brilliant understanding; "he had a flash of intuition"