Evoked-potential audiogram of an Indo-Pacific humpback dolphin (Sousa chinensis) | |
Li, Songhai1,2; Wang, Ding2; Wang, Kexiong2; Taylor, Elizabeth A.1; Cros, Emilie1; Shi, Wenjing2; Wang, Zhitao2; Fang, Liang2; Chen, Yuefei3; Kong, Fanming3 | |
刊名 | JOURNAL OF EXPERIMENTAL BIOLOGY |
2012-09-01 | |
卷号 | 215期号:17页码:3055-3063 |
关键词 | AEP response hearing sensitivity marine mammal odontocete cetacean stimulus sound |
ISSN号 | 0022-0949 |
通讯作者 | Li, Songhai ; Wang, Ding ; Wang, Kexiong ; Taylor, Elizabeth A. ; Cros, Emilie ; Shi, Wenjing ; Wang, Zhitao ; Fang, Liang ; Chen, Yuefei ; Kong, Fanming |
中文摘要 | An evoked-potential audiogram was measured for an Indo-Pacific humpback dolphin (Sousa chinensis) living in the dolphinarium of Nanning Zoo, China. Rhythmic 20 ms pip trains composed of cosine-enveloped 0.25 ms tone pips at a pip rate of 1 kHz were presented as sound stimuli. The dolphin was trained to remain still at the water surface and to wear soft latex suction-cup EEG electrodes used to measure the animal's envelope-following evoked potentials to the sound stimuli. Responses to 1000 rhythmic 20 ms pip trains for each amplitude/frequency combination were averaged and analysed using a fast Fourier transform to obtain an evoked auditory response. The hearing threshold was defined as the zero crossing point of the response input-output function using linear regression. Fourteen frequencies ranging from 5.6 to 152 kHz were studied. The results showed that most of the thresholds were lower than 90 dB re. 1 mu Pa (r.m.s.), covering a frequency range from 11.2 to 128 kHz, and the lowest threshold of 47 dB was measured at 45 kHz. The audiogram, which is a function of hearing threshold versus stimulus carrier frequency, presented a U-shape with a region of high hearing sensitivity (within 20 dB of the lowest threshold) between approximately 20 and 120 kHz. At frequencies lower than this high-sensitivity region, thresholds increased at a rate of approximately 11 dB octave(-1) up to 93 dB at 5.6 kHz. The thresholds at high frequencies above 108 kHz increased steeply at a rate of 130 dB octave(-1) up to 127 dB at 152 kHz. |
英文摘要 | An evoked-potential audiogram was measured for an Indo-Pacific humpback dolphin (Sousa chinensis) living in the dolphinarium of Nanning Zoo, China. Rhythmic 20 ms pip trains composed of cosine-enveloped 0.25 ms tone pips at a pip rate of 1 kHz were presented as sound stimuli. The dolphin was trained to remain still at the water surface and to wear soft latex suction-cup EEG electrodes used to measure the animal's envelope-following evoked potentials to the sound stimuli. Responses to 1000 rhythmic 20 ms pip trains for each amplitude/frequency combination were averaged and analysed using a fast Fourier transform to obtain an evoked auditory response. The hearing threshold was defined as the zero crossing point of the response input-output function using linear regression. Fourteen frequencies ranging from 5.6 to 152 kHz were studied. The results showed that most of the thresholds were lower than 90 dB re. 1 mu Pa (r.m.s.), covering a frequency range from 11.2 to 128 kHz, and the lowest threshold of 47 dB was measured at 45 kHz. The audiogram, which is a function of hearing threshold versus stimulus carrier frequency, presented a U-shape with a region of high hearing sensitivity (within 20 dB of the lowest threshold) between approximately 20 and 120 kHz. At frequencies lower than this high-sensitivity region, thresholds increased at a rate of approximately 11 dB octave(-1) up to 93 dB at 5.6 kHz. The thresholds at high frequencies above 108 kHz increased steeply at a rate of 130 dB octave(-1) up to 127 dB at 152 kHz. |
WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
类目[WOS] | Biology |
研究领域[WOS] | Life Sciences & Biomedicine - Other Topics |
关键词[WOS] | WHALE PSEUDORCA-CRASSIDENS ; TURSIOPS-TRUNCATUS ; AUDITORY-THRESHOLDS ; PHOCOENA-PHOCOENA ; UNDERWATER AUDIOGRAM ; ECHOLOCATION SIGNALS ; HEARING MEASUREMENTS ; PORPOISE ; AUDIOMETRY ; CETACEANS |
收录类别 | SCI |
资助信息 | National Natural Science Foundation of China [31070347]; Ministry of Science and Technology of China [2011BAG07B05-3]; State Oceanic Administration of China [201105011]; Marine Mammal Research Laboratory, Tropical Marine Science Institute, National University of Singapore |
语种 | 英语 |
WOS记录号 | WOS:000307638700023 |
公开日期 | 2013-01-09 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihb.ac.cn/handle/342005/17164] |
专题 | 水生生物研究所_水生生物多样性与资源保护研究中心_期刊论文 |
作者单位 | 1.Natl Univ Singapore, Trop Marine Sci Inst, Marine Mammal Res Lab, Singapore 119227, Singapore 2.Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Inst Hydrobiol, Wuhan 430072, Peoples R China 3.Dolphinarium Nanning Zoo, Nanning 530003, Guangxi, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Songhai,Wang, Ding,Wang, Kexiong,et al. Evoked-potential audiogram of an Indo-Pacific humpback dolphin (Sousa chinensis)[J]. JOURNAL OF EXPERIMENTAL BIOLOGY,2012,215(17):3055-3063. |
APA | Li, Songhai.,Wang, Ding.,Wang, Kexiong.,Taylor, Elizabeth A..,Cros, Emilie.,...&Kong, Fanming.(2012).Evoked-potential audiogram of an Indo-Pacific humpback dolphin (Sousa chinensis).JOURNAL OF EXPERIMENTAL BIOLOGY,215(17),3055-3063. |
MLA | Li, Songhai,et al."Evoked-potential audiogram of an Indo-Pacific humpback dolphin (Sousa chinensis)".JOURNAL OF EXPERIMENTAL BIOLOGY 215.17(2012):3055-3063. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论