Low frequency hearing in cephalopods
Low frequency hearing in cephalopods
复制标题
头足类动物的低频听觉
DOI：
10.1007/bf00192020
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
O. Sand
中科院分区：
文献类型：
--
作者：
A. Packard;H. E. Karlsen;O. Sand
摘要 采用经典条件反射来测试头足类动物对驻波声管中产生的 1 至 100 Hz 振动的敏感性。这些动物经过训练，将声音刺激与微弱的电击联系起来，记录的条件反应是呼吸和喷射活动的变化。对五个乌贼样本进行了测试，所有样本都对这些低频声音有反应。相关的刺激参数是粒子运动而不是声压。阈值（以粒子加速度测量）在测试范围内向较低频率下降，达到 4 × 10-3 m/s2 以下的值。最敏感范围内的阈值可能被实验地点（那不勒斯）相当大的背景噪声所掩盖。两只普通章鱼和一只普通章鱼也接受了测试，它们对低频声音表现出相似的敏感性。
SummaryClassical conditioning was employed to test the sensitivity of cephalopods to vibrations between 1 and 100 Hz generated in a standing wave acoustic tube. The animals were trained to associate sound stimuli with a weak electric shock, and the recorded conditioned responses were changes in breathing and jetting activity. Five specimens of Sepia officinalis were tested, and all responded to these low frequency sounds. The relevant stimulus parameter was particle motion rather than sound pressure. The threshold values (measured as particle acceleration) decreased towards lower frequencies in the tested range, reaching values below 4 × 10-3 m/s2. The thresholds in the most sensitive range may have been masked by the considerable background noise at the experimental site (Naples). Two individuals of Octopus vulgaris and one Loligo vulgaris were also tested, and showed a similar sensitivity to low frequency sound.