Auditory Thresholds of a Fresh Water Dolphin,Inia geoffrensisBlainville
作者:
David W. Jacobs,
John D. Hall,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1972)
卷期:
Volume 51,
issue 2B
页码: 530-533
ISSN:0001-4966
年代: 1972
DOI:10.1121/1.1912874
出版商: Acoustical Society of America
数据来源: AIP
摘要:
A fresh water Amazon River dolphin,Inia geoffrensis, was conditioned to respond to pure tones by pushing a response lever. By using this method an audiogram was obtained for frequencies between 1.0 and 105 kHz. The animal was most sensitive to tones between 75 and 90 kHz. The sensitivity threshold in this area was −50 dBre1 dyn/cm2. The effective upper limit of hearing was 105 kHz. No reliable response was elicited above 105 kHz using a random presentation and undistorted signal.
点击下载:
PDF
(345KB)
返 回