The mu rhythm on EEG arises from?: (A) Primary visual area, (B) Primary auditory area, (C) Primary sensorimotor area, (D) Primary olfactory area
Answer is C. mu(u) rhythm * 7 - 11 Hz normal waves. Seen during wakefulness and drowsiness. Arises from the Rolandic coex (primary sensorimotor coex) at rest. It can be unilateral, asynchronous and asymmetric.