Temporal Summation for Tones at Threshold
- 1 January 1973
- journal article
- research article
- Published by Acoustical Society of America (ASA) in The Journal of the Acoustical Society of America
- Vol. 53 (1_Suppleme) , 313
- https://doi.org/10.1121/1.1982273
Abstract
The threshold for tones as a function of their duration (500, 200, 100, 50, 20, and 10 msec) was investigated with the tracking method in a population of 50 normal‐hearing listeners (25 male, 25 female; 25 right ears, 25 left ears) at nine frequencies from 125 through 8000 Hz under test‐retest conditions. The results indicate that temporal auditory summation, at least as measured with the tracking method, conforms with theoretical expectations. There was no variation in the function with frequency, sex, or ear. When the thresholds for individual listeners are normalized to the threshold for 20‐msec tones, the variability both among and within subjects is about the same at all frequencies for all duration tones (standard deviation of 2 dB). These results permit further investigation on the effect of other variables (e.g., hearing impairment) on the threshold for tones as a function of their duration. [Supported by a PHS Research Grant from NINDS.]Keywords
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