Hubl L, Mohneke R, Schneider H
Zoologisches Institut der Universität Bonn, D-5300 Bonn, Federal Republic of Germany.
Behav Processes. 1977 Dec;2(4):305-14. doi: 10.1016/0376-6357(77)90001-8.
We recorded multi-unit activity from the torus semicircularis in two European anurans, to test for temperature dependence of the auditory thresholds. In Rana r. ridibunda the entire threshold-vs.-frequency curve shifts downward for a temperature increase from 5° to 15° C; the average increase in sensitivity is 14 dB. In Bombina v. variegata the increase in sensitivity averages 8 dB for a rise in temperature from 12° to 20° C; in addition, the best frequency is shifted by about 150 Hz by this increase in temperature, from 350-400 Hz to 550 Hz. The audiogram of Rana r. ridibunda differs from that of Bombina v. variegata in that it is markedly trimodal; the sensitivity maxima for Rana fall at 300-500 Hz, 750-1000 Hz and 1250-1700 Hz.
我们记录了两种欧洲无尾两栖类动物半规管隆起的多单元活动，以测试听觉阈值的温度依赖性。在食用蛙中，当温度从5℃升高到15℃时，整个阈值-频率曲线向下移动；灵敏度平均增加14分贝。在饰纹姬蛙中，当温度从12℃升高到20℃时，灵敏度平均增加8分贝；此外，温度升高使最佳频率从350 - 400赫兹移至550赫兹左右，偏移了约150赫兹。食用蛙的听力图与饰纹姬蛙不同，它明显呈三峰型；食用蛙的灵敏度最大值出现在300 - 500赫兹、750 - 1000赫兹和1250 - 1700赫兹处。
