The closed-circuit TV-electroencephalogram (CCTV-EEG) of a 6-year-old boy revealed central mid-temporal spikes (CMTS) triggered by blinking. The spikes occurred spontaneously, as well as reflexly, following the blinks by 100-200 msec. Triggered spikes occurred in the light and dark and also while awake and drowsy. However, spontaneous spikes, not triggered by blinks, also occurred in drowsiness. These findings demonstrate activation of CMTS by an endogenous behavior (blinking).