Through binaural earphones, 10 Ss were presented with intermittent auditory stimuli ranging from 3 to 15 pps at intensities from 100 to 130 db. EEGs were taken and the occipital or temporal output was analyzed with a frequency analyzer. Only one of 10 Ss showed EEG following at most input frequencies. When the data from all Ss were combined, it was discovered that the introduction of auditory inputs at 10 pps produced an inhibition of the 10-cps alpha rhythm. The data imply a limited interaction between the visual and auditory modalities.
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