Auditory threshold, signal-to-noise ratio and signal detection theory

Autor: L. J. Holdstock
Rok vydání: 1982
Předmět:
Zdroj: Current Psychology. 2:129-138
ISSN: 1936-4733
1046-1310
DOI: 10.1007/bf03186753
Popis: The use of Signal Detection Theory has demonstrated that there is not an auditory threshold at the level supposed by classical psychophysics, but has not disproved the existence of an auditory threshold at a lower level. Following the recommended signal detection theory procedure fairly closely, an experiment obtained evidence either of the existence of a signal-to-noise ratio audi tory threshold, or a nonlinear relationship between stimulus and response which could not be statistically distiguished from such a threshold , Using the same apparatus and subjects, audi tory thresholds were also obtained using the classical method of limits. The acoustic pressure for the classical thresholds was about five times as great as for the signal detection theory method.
Databáze: OpenAIRE