Auditory temporal resolution and evoked responses to pulsed sounds for the Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis)

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	Auditory temporal resolution and evoked responses to pulsed sounds for the Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis)
	Mooney, T. Aran 1; Li, Songhai 2,3; Ketten, Darlene R.1,4; Wang, Kexiong 2; Wang, Ding 2
刊名	JOURNAL OF COMPARATIVE PHYSIOLOGY A-NEUROETHOLOGY SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY
	2011-12-01
卷号	197 期号:12 页码:1149-1158
关键词	Modulation rate transfer function Temporal processing Auditory brainstem response Cetacean Acoustic
ISSN号	0340-7594
通讯作者	Mooney, TA (reprint author), Woods Hole Oceanog Inst, Dept Biol, Woods Hole, MA 02543 USA.
中文摘要	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.
英文摘要	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.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Behavioral Sciences ; Neurosciences ; Physiology ; Zoology
研究领域[WOS]	Behavioral Sciences ; Neurosciences & Neurology ; Physiology ; Zoology
关键词[WOS]	DOLPHIN LAGENORHYNCHUS-ALBIROSTRIS ; ENVELOPE-FOLLOWING RESPONSE ; TURSIOPS-TRUNCATUS ; PHOCOENA-PHOCOENA ; HEARING ; ECHOLOCATION ; DURATION ; SIGNALS ; THRESHOLD ; CETACEANS
收录类别	SCI
资助信息	Office of Naval Research; Chinese National Natural Science Foundation[30730018]; Institute of Hydrobiology of the Chinese Academy of Sciences
语种	英语
WOS记录号	WOS:000298628000007
公开日期	2012-09-25
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/16825]
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.Woods Hole Oceanog Inst, Dept Biol, Woods Hole, MA 02543 USA 2.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China 3.Univ Hawaii, Hawaii Inst Marine Biol, Marine Mammal Res Program, Kailua, HI 96734 USA 4.Harvard Univ, Sch Med, Boston, MA 02114 USA
推荐引用方式 GB/T 7714	Mooney, T. Aran,Li, Songhai,Ketten, Darlene R.,et al. Auditory temporal resolution and evoked responses to pulsed sounds for the Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis)[J]. JOURNAL OF COMPARATIVE PHYSIOLOGY A-NEUROETHOLOGY SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY,2011,197(12):1149-1158.
APA	Mooney, T. Aran,Li, Songhai,Ketten, Darlene R.,Wang, Kexiong,&Wang, Ding.(2011).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,197(12),1149-1158.
MLA	Mooney, T. Aran,et al."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 197.12(2011):1149-1158.