1975•The Journal of the Acoustical Society of AmericaRequires access
Comparison of critical ratios and critical bands in the monaural chinchilla
William H. Seaton, Constantine Trahiotis
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Abstract
The major purpose of this study was to compare measures of critical ratios and critical bands in monaural chinchillas. Critical ratios were obtained from two groups of chinchillas tested at 0.5, 1, 2, and 4 kHz in each of three levels of broad−band noise. Critical bands were obtained by assessing the values of masked threshold in various narrow−bands of noise centered on each test frequency. The measures of critical ratios and critical bands were found not to be parallel as a function of frequency, as is the case for human subjects. The present data were compared to those reported for the monkey and were found to be in essential agreement. Subject Classification: 65.58, 65.75; 80.50.