Different auditory feedback control for echolocation and communication in horseshoe bats.
Different auditory feedback control for echolocation and communication in horseshoe bats.
复制标题
马蹄蝠回声定位和交流的不同听觉反馈控制
DOI：
10.1371/journal.pone.0062710
复制
发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Metzner W
中科院分区：
文献类型：
--
作者：
Liu Y;Feng J;Metzner W
在蝙蝠回声定位过程中，来自动物自身声音的听觉反馈是必不可少的：为了优化信号检测，蝙蝠不断调整各种呼叫参数以响应不断变化的回声信号。听觉反馈似乎也是控制许多蝙蝠沟通呼叫所必需的，尽管目前还不清楚听觉反馈控制在回声定位和沟通中的不同。我们通过分析大马蹄蝙蝠的回声定位和通信来解决这个问题，大马蹄蝙蝠的回声定位脉冲由一个恒定的频率分量主导，该频率分量与它们听到的最佳频率范围相匹配。为了保持在这个“听觉中心凹”内的回声，马蹄形蝙蝠不断地根据返回回声信号的频率来调整它们的回声定位呼叫频率。这种多普勒频移补偿（DSC）行为代表了已知的感觉运动反馈的最精确形式之一。我们研究了在休息时发出的回声定位脉冲（休息频率，RF）和一种类型的通信信号，它类似于回声定位脉冲，但要短得多（短恒频通信呼叫，SCF），只在社会交往中产生的变化。我们发现，虽然RF每天都在变化，证实了其他恒定频率蝙蝠的早期研究，但SCF频率保持不变。此外，RF重叠的一些蝙蝠，而SCF频率总是明显不同。这表明，在回声定位过程中的听觉反馈随RF的变化而变化，但在SCF呼叫通信的发射过程中保持恒定或可能不存在。这种根本不同的反馈机制，回声定位和通信可能使这些蝙蝠使用SCF呼叫个人识别，而他们调整RF呼叫，以适应他们的听觉中心凹的日常变化。
Auditory feedback from the animal's own voice is essential during bat echolocation: to optimize signal detection, bats continuously adjust various call parameters in response to changing echo signals. Auditory feedback seems also necessary for controlling many bat communication calls, although it remains unclear how auditory feedback control differs in echolocation and communication. We tackled this question by analyzing echolocation and communication in greater horseshoe bats, whose echolocation pulses are dominated by a constant frequency component that matches the frequency range they hear best. To maintain echoes within this “auditory fovea”, horseshoe bats constantly adjust their echolocation call frequency depending on the frequency of the returning echo signal. This Doppler-shift compensation (DSC) behavior represents one of the most precise forms of sensory-motor feedback known. We examined the variability of echolocation pulses emitted at rest (resting frequencies, RFs) and one type of communication signal which resembles an echolocation pulse but is much shorter (short constant frequency communication calls, SCFs) and produced only during social interactions. We found that while RFs varied from day to day, corroborating earlier studies in other constant frequency bats, SCF-frequencies remained unchanged. In addition, RFs overlapped for some bats whereas SCF-frequencies were always distinctly different. This indicates that auditory feedback during echolocation changed with varying RFs but remained constant or may have been absent during emission of SCF calls for communication. This fundamentally different feedback mechanism for echolocation and communication may have enabled these bats to use SCF calls for individual recognition whereas they adjusted RF calls to accommodate the daily shifts of their auditory fovea.
登录
查看更多内容
DOI：
10.1098/rspb.1998.0286
发表时间：
1998-02-07
影响因子：
4.7
作者：
Boughman, JW
通讯作者：
Boughman, JW
影响因子：
1.7
作者：
ESSER, KH
通讯作者：
ESSER, KH
影响因子：
2
作者：
deFanis, E;Jones, G
通讯作者：
Jones, G
DOI：
10.1016/b978-0-12-374593-4.00032-2
发表时间：
2010-01-01
期刊：
HANDBOOK OF MAMMALIAN VOCALIZATION: AN INTEGRATIVE NEUROSCIENCE APPROACH
影响因子：
--
作者：
Hage, Steffen R.
通讯作者：
Hage, Steffen R.
DOI：
10.1007/bf00213070
发表时间：
1993-01-01
期刊：
JOURNAL OF COMPARATIVE PHYSIOLOGY A-SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY
影响因子：
--
作者：
HUFFMAN, RF;HENSON, OW
通讯作者：
HENSON, OW