Auditory Masking in the Rat
作者:
George Gourevitch,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1965)
卷期:
Volume 37,
issue 3
页码: 439-443
ISSN:0001-4966
年代: 1965
DOI:10.1121/1.1909348
出版商: Acoustical Society of America
数据来源: AIP
摘要:
Masked thresholds were measured with an operant tracking method at 4 frequencies between 1000 and 8000 cps and at 3–5 levels of wide‐band noise. As in humans and cats, masked thresholds in the rat increased linearly with noise level. Critical ratios were calculated from the masked thresholds and found to be 10 or 11 dB greater than those in man and 5 to 6 dB greater than those in cats. Greenwood's functionΔfcb = 10ax+b, relating critical bandwidths to position on the basilar membrane, was shown to fit reasonably well the data of this experiment. The constant relation shown by Fletcher between critical ratios and frequency DL's, previously found to apply to man and to cats, appears to apply to rats also.
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