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题名: Auditory temporal resolution and evoked responses to pulsed sounds for the Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis)
作者: Mooney, T. Aran ; Li, Songhai ; Ketten, Darlene R. ; Wang, Kexiong ; Wang, Ding
通讯作者: Mooney, TA (reprint author), Woods Hole Oceanog Inst, Dept Biol, Woods Hole, MA 02543 USA.
关键词: Modulation rate transfer function ; Temporal processing ; Auditory brainstem response ; Cetacean ; Acoustic
刊名: JOURNAL OF COMPARATIVE PHYSIOLOGY A-NEUROETHOLOGY SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY
发表日期: 2011
卷: 197, 期:12, 页:1149-1158
收录类别: SCI
部门归属: [Mooney, T. Aran; Ketten, Darlene R.] Woods Hole Oceanog Inst, Dept Biol, Woods Hole, MA 02543 USA; [Li, Songhai; Wang, Kexiong; Wang, Ding] Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China; [Li, Songhai] Univ Hawaii, Hawaii Inst Marine Biol, Marine Mammal Res Program, Kailua, HI 96734 USA; [Ketten, Darlene R.] Harvard Univ, Sch Med, Boston, MA 02114 USA
资助者: Office of Naval Research; Chinese National Natural Science Foundation[30730018]; Institute of Hydrobiology of the Chinese Academy of Sciences
摘要: Temporal cues are important for some forms of auditory processing, such as echolocation. Among odontocetes (toothed whales, dolphins, and porpoises), it has been suggested that porpoises may have temporal processing abilities which differ from other odontocetes because of their relatively narrow auditory filters and longer duration echolocation signals. This study examined auditory temporal resolution in two Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis) using auditory evoked potentials (AEPs) to measure: (a) rate following responses and modulation rate transfer function for 100 kHz centered pulse sounds and (b) hearing thresholds and response amplitudes generated by individual pulses of different durations. The animals followed pulses well at modulation rates up to 1,250 Hz, after which response amplitudes declined until extinguished beyond 2,500 Hz. The subjects had significantly better hearing thresholds for longer, narrower-band pulses similar to porpoise echolocation signals compared to brief, broadband sounds resembling dolphin clicks. Results indicate that the Yangtze finless porpoise follows individual acoustic signals at rates similar to other odontocetes tested. Relatively good sensitivity for longer duration, narrow-band signals suggests that finless porpoise hearing is well suited to detect their unique echolocation signals.
语种: 英语
WOS记录号: WOS:000298628000007
ISSN号: 0340-7594
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/16825
Appears in Collections:水生生物多样性与资源保护研究中心_期刊论文

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Mooney, T. Aran; Li, Songhai; Ketten, Darlene R.; Wang, Kexiong; Wang, Ding.Auditory temporal resolution and evoked responses to pulsed sounds for the Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis),JOURNAL OF COMPARATIVE PHYSIOLOGY A-NEUROETHOLOGY SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY,2011,197(12):1149-1158
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文件名: Auditory temporal resolution and evoked responses to pulsed sounds for the Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis).pdf
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