Binaural Interaction in Low‐Frequency Stimuli: The Inability to Trade Time and Intensity Completely
作者:
Ervin R. Hafter,
Samuel C. Carrier,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1972)
卷期:
Volume 51,
issue 6B
页码: 1852-1862
ISSN:0001-4966
年代: 1972
DOI:10.1121/1.1913044
出版商: Acoustical Society of America
数据来源: AIP
摘要:
Subjects were presented with low‐frequency tonal signals, leading in time to one ear but more intense to the other. For differing values of interaural time (Δt) and intensity (ΔI), the listener's task was to detect the difference between the dichotic signals and diotic tones of the same frequency. The shapes of the psychometric functions demonstrate that time and intensity do trade but that the trade is incomplete—a result shown to be in accord with other experiments where listeners presented with such signals report the presence of two distinct “images.” A model of time‐intensity trading is presented in which it is assumed that differences of intensity are converted to time by two different trading mechanisms and that the two sums of Δtand converted ΔIact as different loci on a single interaural dimension. It is further suggested that the inner and outer hair cells may represent the site of the two trades.
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