Variations in alpha voltage of the electroencephalogram and time perception.
Human subjects were instructed to respond regularly at 3-second intervals while their brain waves were recorded and analyzed. When subjects were alert the time between two successive responses did not vary greatly; however, as subjects became increasingly drowsy these times lengthened and the mean voltage of the peak alpha frequency decreased.
D058256:Brain Waves; D004569:Electroencephalography; D006801:Humans; D012894:Sleep Stages; D013995:Time; D013998:Time Perception
ELECTROENCEPHALOGRAPHY; TIME PERCEPTION