Habituation of the startle response to tones of varying intensity

Abstract It is well known from a variety of observations that the initial level of the startle response is a function of intensity of the auditory stimuli used. The present study seeks also to determine whether the terminal levels and the rates of habituation differ as a function of stimulus intensity. Use of electromyographic recording should not only provide a detailed quatitative picture of the course of habituation but also allow us to answer questions.