Evoked-potential audiogram of an Indo-Pacific humpback dolphin (Sousa chinensis)

CORC > 水生生物研究所 > 中科院水生所知识产出（2009年前） > 水生生物多样性与资源保护研究中心 > 期刊论文

	Evoked-potential audiogram of an Indo-Pacific humpback dolphin (Sousa chinensis)
	Li, Songhai 1,2; Wang, Ding 2; Wang, Kexiong 2; Taylor, Elizabeth A.1; Cros, Emilie 1; Shi, Wenjing 2; Wang, Zhitao 2; Fang, Liang 2; Chen, Yuefei 3; Kong, Fanming 3
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.