THE AUDITORY EVOKED RESPONSE TO REPEATED STIMULI DURING A VIGILANCE TASK

摘要: The auditory evoked response was measured between the vertex and left ear in 9 Ss. In an extension of idea recovery function, series tones, including sets 5 tone pips with ½, 1, or 2 sec them, 11 sets, were presented, while Ss instructed to press a button whenever there change length. Because slow this response, no subtraction procedure necessary. There 6 runs representing experimental conditions for each S. Habituation within not observed, but significant habituation rims spite constant vigilance level. responses second subsequent stimuli set much smaller than first, depending on interstimulus interval sets. Evoked 65 db less 85 db, showed proportionally same changes successive stimuli.