The present study was designed to test the hypothesis that varying sensory input can affect
mood, autonomic arousal, and electrocortical activity. Twenty right-handed males were
exposed to three rhythmic audio-visual stimulation programs, with either a high intensity and
variety of stimuli (program H), a low stimulation (program L) or with a transient from high to
low (program HL). Multichannel EEG, heart rate, and skin conductance were recorded
continuously, and after each trial mood was rated on a bipolar adjective list. EEG data were …