Abstract
This paper presents a study of the effect of the interstimulus interval on pitch discrimination the cases of five different psychophysical procedures. These procedures were approximately analogous to those employed by Pollack for intensity discrimination. All the experiments described here for pitch discrimination were carried out at a constant sound level of about 40 db above threshold, the mean reference frequency being 1000 cps. The listeners examined were five young men with normal hearing acuity between the ages of 20 and 30. From the experimental data it appears that, irrespective of the method used, the mean over-all performance of the subjects in pitch discrimination deteriorates only slightly as the interstimulus interval increases from 1.25 to 5 sec. In order to stress the large discrepancies among the performance of the listeners, the data for each subject were reported with special care. The effect of stimulus duration on pitch discrimination is briefly discussed.
Published Version
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