| Hearing Sensation Levels of Emitted Biosonar Clicks in an Echolocating Atlantic Bottlenose Dolphin | |
| Li, Songhai1,3; Nachtigall, Paul E.1; Breese, Marlee1; Supin, Alexander Ya.2; Li, SH (reprint author), Natl Univ Singapore, Marine Mammal Res Lab, Trop Marine Sci Inst, Singapore 117548, Singapore. | |
| 2012-01-06 | |
| Source Publication | PLOS ONE
 |
| ISSN | 1932-6203 |
| Volume | 7Issue:1Pages:e29793 |
| Abstract | Emitted biosonar clicks and auditory evoked potential (AEP) responses triggered by the clicks were synchronously recorded during echolocation in an Atlantic bottlenose dolphin (Tursiops truncatus) trained to wear suction-cup EEG electrodes and to detect targets by echolocation. Three targets with target strengths of -34, -28, and -22 dB were used at distances of 2 to 6.5 m for each target. The AEP responses were sorted according to the corresponding emitted click source levels in 5-dB bins and averaged within each bin to extract biosonar click-related AEPs from noise. The AEP amplitudes were measured peak-to-peak and plotted as a function of click source levels for each target type, distance, and target-present or target-absent condition. Hearing sensation levels of the biosonar clicks were evaluated by comparing the functions of the biosonar click-related AEP amplitude-versus-click source level to a function of external (in free field) click-related AEP amplitude-versus-click sound pressure level. The results indicated that the dolphin's hearing sensation levels to her own biosonar clicks were equal to that of external clicks with sound pressure levels 16 to 36 dB lower than the biosonar click source levels, varying with target type, distance, and condition. These data may be assumed to indicate that the bottlenose dolphin possesses effective protection mechanisms to isolate the self-produced intense biosonar beam from the animal's ears during echolocation.; Emitted biosonar clicks and auditory evoked potential (AEP) responses triggered by the clicks were synchronously recorded during echolocation in an Atlantic bottlenose dolphin (Tursiops truncatus) trained to wear suction-cup EEG electrodes and to detect targets by echolocation. Three targets with target strengths of -34, -28, and -22 dB were used at distances of 2 to 6.5 m for each target. The AEP responses were sorted according to the corresponding emitted click source levels in 5-dB bins and averaged within each bin to extract biosonar click-related AEPs from noise. The AEP amplitudes were measured peak-to-peak and plotted as a function of click source levels for each target type, distance, and target-present or target-absent condition. Hearing sensation levels of the biosonar clicks were evaluated by comparing the functions of the biosonar click-related AEP amplitude-versus-click source level to a function of external (in free field) click-related AEP amplitude-versus-click sound pressure level. The results indicated that the dolphin's hearing sensation levels to her own biosonar clicks were equal to that of external clicks with sound pressure levels 16 to 36 dB lower than the biosonar click source levels, varying with target type, distance, and condition. These data may be assumed to indicate that the bottlenose dolphin possesses effective protection mechanisms to isolate the self-produced intense biosonar beam from the animal's ears during echolocation. |
| Subtype | Article |
| Keyword | False Killer Whale Mesoplodon-densirostris Neural Attenuation Tursiops-truncatus Responses Behavior Prey Porpoises Pulses Sounds |
| Department | [Li, Songhai; Nachtigall, Paul E.; Breese, Marlee] Univ Hawaii, Marine Mammal Res Program, Hawaii Inst Marine Biol, Kailua, HI USA; [Supin, Alexander Ya.] Russian Acad Sci, Inst Ecol & Evolut, Moscow, Russia; [Li, Songhai] Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Inst Hydrobiol, Wuhan, Peoples R China |
| DOI | 10.1371/journal.pone.0029793 |
| WOS Headings | Science & Technology |
| Funding Organization | Office of Naval Research[N00014-08-1-1106] ; Office of Naval Research[N00014-08-1-1106] ; Office of Naval Research[N00014-08-1-1106] ; Office of Naval Research[N00014-08-1-1106] |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Science & Technology - Other Topics |
| WOS Subject | Multidisciplinary Sciences |
| WOS ID | WOS:000301188800038 |
| WOS Keyword | FALSE KILLER WHALE ; MESOPLODON-DENSIROSTRIS ; NEURAL ATTENUATION ; TURSIOPS-TRUNCATUS ; RESPONSES ; BEHAVIOR ; PREY ; PORPOISES ; PULSES ; SOUNDS |
| Funding Organization | Office of Naval Research[N00014-08-1-1106] ; Office of Naval Research[N00014-08-1-1106] ; Office of Naval Research[N00014-08-1-1106] ; Office of Naval Research[N00014-08-1-1106] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/342005/16827 |
| Collection | 水生生物多样性与资源保护研究中心_期刊论文 |
| Corresponding Author | Li, SH (reprint author), Natl Univ Singapore, Marine Mammal Res Lab, Trop Marine Sci Inst, Singapore 117548, Singapore. |
| Affiliation | 1.Univ Hawaii, Marine Mammal Res Program, Hawaii Inst Marine Biol, Kailua, HI USA 2.Russian Acad Sci, Inst Ecol & Evolut, Moscow, Russia 3.Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Inst Hydrobiol, Wuhan, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Songhai,Nachtigall, Paul E.,Breese, Marlee,et al. Hearing Sensation Levels of Emitted Biosonar Clicks in an Echolocating Atlantic Bottlenose Dolphin[J]. PLOS ONE,2012,7(1):e29793. |
| APA | Li, Songhai,Nachtigall, Paul E.,Breese, Marlee,Supin, Alexander Ya.,&Li, SH .(2012).Hearing Sensation Levels of Emitted Biosonar Clicks in an Echolocating Atlantic Bottlenose Dolphin.PLOS ONE,7(1),e29793. |
| MLA | Li, Songhai,et al."Hearing Sensation Levels of Emitted Biosonar Clicks in an Echolocating Atlantic Bottlenose Dolphin".PLOS ONE 7.1(2012):e29793. |
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| Hearing Sensation Le（1509KB） | 开放获取 | -- | View Application Full Text | |||
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