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ENCODING OF VOCAL SIGNALS IN THE AUDITORY SYSTEM

听觉系统中声音信号的编码

基本信息

批准号：
6329185
负责人：
ANDREW H BASS
金额：
$ 24.31万
依托单位：
CORNELL UNIVERSITY
依托单位国家：
美国
项目类别：
财政年份：
1974
资助国家：
美国
起止时间：
1974-09-01 至 2002-08-19
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/6329185
关键词：
acoustic nerve animal communication behavior auditory discrimination auditory feedback auditory pathways behavioral /social science research tag biocytin fish neural information processing psychoacoustics vocalization

项目摘要

DESCRIPTION: The central goal of the research proposed here is to understand how the vertebrate auditory system recognizes and interprets an enormous repertoire of species-typical vocal communication signals. The establishment of non-mammalian models of acoustic communication provide a unique and practical opportunity to identify the basic principles of neural operation that have led to the evolution of the complex auditory system of mammals including humans. Teleost fishes are the largest group of extant vertebrates and include vocalizing species with a simple vocal repertoire and a central auditory system resembling that of mammals. We propose that the plainfin midshipman fish (Porichthys notatus) has the vocal and acoustic behaviors, and underlying neural mechanisms and circuitry, both necessary and sufficient to solve acoustic problems that challenge all vertebrates including the separation of simultaneous (concurrent) vocalizations. Male midshipman fish vocalize simultaneously while they court females using multi-harmonic advertisement calls. Three questions will address mechanisms for the encoding and decoding of individual and concurrent vocal signals: (1) How and where are concurrent vocal signals segregated and encoded by the nervous system? Single unit recordings in the eighth nerve and auditory midbrain will characterize responses to both simple signals such as two tone beats and single multi-harmonic signals, and more complex stimuli such as two or more concurrent multi-harmonic signals. Central recordings together with neuroanatomical (biocytin) tract-tracing will map the circuitry that subserves the auditory coding mechanisms identified. (2) How and where do auditory and vocal pathways interact before, during and after self-vocalization? Central vocal-acoustic pathways recently delineated in midshipman will now guide single unit studies that test hypotheses of the proposed role of vocal-acoustic circuitry in auditory coding mechanisms. (3) How does the temporal structure of a vocal signal influence information transmission by auditory nerve fibers? Information transmission measures the amount of information present in an afferent spike train (information rate) and the quality of the stimulus representation by a spike train (coding efficiency). The simplicity (2-3 harmonics) and long duration (up to 115 minutes) of the midshipman s advertisement call presents a unique opportunity to test the hypothesis that a vocal signal s temporal structure is exploited for optimizing information transmission and hence the recognition of individual concurrent vocal signals.

描述：这里提出的研究的中心目标是了解脊椎动物的听觉系统如何识别和解释巨大的物种特有的声音交流信号。的建立非哺乳动物声学通信模型提供了一个独特而实用的机会，以确定神经的基本原则，这种操作导致了复杂的听觉系统的进化，哺乳动物，包括人类。硬骨鱼是现存最大的脊椎动物和包括发声物种与一个简单的声乐剧目和类似哺乳动物的中央听觉系统。我们建议平鳍见习生鱼（Porichthys notatus）具有声音和听觉行为，以及潜在的神经机制和电路，都是必要的足以解决所有脊椎动物都面临的声学问题包括同时（并发）发声的分离。男性海军军官鱼同时发声，而他们的法院女性使用多谐波广告呼叫。三个问题将涉及机制对于单独和并发的声音信号的编码和解码： (1)如何以及在何处同时发生的声音信号被分离和编码，神经系统？第八神经和听觉的单单位记录中脑将表征对两种简单信号的响应，节拍和单个多谐波信号，以及更复杂的刺激，两个或多个并发的多谐波信号。中央录音在一起用神经解剖学（生物胞素）追踪将绘制电路，有助于识别听觉编码机制。 (2)如何以及在哪里听觉和发声通路在之前、期间和之后相互作用自我发声？最近描绘的中央声乐途径，海军军官候补生现在将指导单一单位的研究，测试假设的提出的作用的声音声学电路在听觉编码机制。 (3)声音信号的时间结构如何影响信息通过听觉神经纤维传递信息传递措施传入尖峰序列中存在信息量（信息速率）和由尖峰序列表示的刺激的质量（编码效率）。简单性（2-3次谐波）和长持续时间（向上到115分钟）的海军军官候补生的广告电话提出了一个独特的有机会来测试假设，声音信号的时间结构用于优化信息传输，因此单个并发语音信号的识别。

项目成果

期刊论文数量（23）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Hormone-induced vocal behavior and midbrain auditory sensitivity in the green treefrog, Hyla cinerea.

绿色树蛙荷尔蒙诱导的发声行为和中脑听觉敏感性。

DOI：
10.1007/bf00190402
发表时间：
1992
期刊：
Journal of comparative physiology. A, Sensory, neural, and behavioral physiology
影响因子：
0
作者：
Penna,M;Capranica,RR;Somers,J
通讯作者：
Somers,J

Representation of acoustic signals in the eighth nerve of the Tokay gecko. II. Masking of pure tones with noise.

托卡伊壁虎第八神经中声音信号的表示。

DOI：
10.1016/0378-5955(96)00104-9
发表时间：
1996
期刊：
Hearing research
影响因子：
2.8
作者：
Sams-Dodd,F;Capranica,RR
通讯作者：
Capranica,RR

Bilateral syringeal coupling during phonation of a songbird.

鸣禽发声期间的双边注射耦合。

DOI：
10.1523/jneurosci.06-12-03595.1986
发表时间：
1986
期刊：
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子：
0
作者：
Nowicki,S;Capranica,RR
通讯作者：
Capranica,RR

Neural correlates of temperature coupling in the vocal communication system of the gray treefrog (Hyla versicolor).

灰树蛙（Hyla versicolor）声音交流系统中温度耦合的神经相关性。