Hearing Response to Sweeping Sound in Bastard Halibut Paralichthys olivaceus

DOI Web Site Web Site 参考文献19件

書誌事項

タイトル別名
  • Hearing Response to Sweeping Sound in Bastard Halibut <i>Paralichthys olivaceus</i>

この論文をさがす

抄録

The hearing sensitivities of bastard halibut Paralichthys olivaceus decreased sharply at the frequency band between 200Hz and 400Hz. The hearing response of bastard halibut was measured by sweeping sound which the center frequency moves from non-hearing frequency (300-1600Hz) to hearing frequency (100-200Hz), and discussed the upper limit frequency of hearing.<br> The classical conditioning was reinforced by the tone burst sound in a continuous time of 1s, a frequency of 100Hz and a sound pressure level of 131dB. The sweeping sound was projected in five steps at intervals of 5dB. The sweeping speed of eight types was adjusted with a combination of a start and end of sweeping frequency. The conditioning response was measured as suppression in the respiratory activity by a piezoelectric sensor fitted on the gill cover.<br> The response to sweeping sound was 82% at the frequency band between 200Hz and 340Hz, which agreed with the boundary of the hearing area. The upper limit frequency of hearing of bastard halibut existed under 500Hz. The hearing response to sweeping sound did not agree with the audiogram of bastard halibut because the sound pressure level fluctuated in the small water tank. The sweeping speed is inversely proportional to the individual difference of the response time.

収録刊行物

参考文献 (19)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ