Constant Resting Frequency and Auditory Midbrain Neuronal Frequency Analysis of Hipposideros pratti in Background White Noise.
Constant Resting Frequency and Auditory Midbrain Neuronal Frequency Analysis of Hipposideros pratti in Background White Noise.
复制标题
背景白噪声中普拉蒂恒定静息频率和听觉中脑神经元频率分析
DOI：
10.3389/fnbeh.2021.657155
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发表时间：
2021
影响因子：
3
通讯作者：
Fu Z
中科院分区：
文献类型：
--
作者：
Zhang G;Cui Z;Wu J;Jin B;Zhou D;Liu L;Tang J;Chen Q;Fu Z
声学通信信号不可避免地受到环境噪声的挑战。为了应对噪音，许多动物会调整它们的叫声以保持信号的可检测性。然而，听觉系统适应调整后的脉冲的机制尚不清楚。我们之前的研究表明，回声定位蝙蝠，Hipposideros pratti，在背景白色噪音的存在下增加了它的脉冲强度。在体内的单神经元记录表明，听觉中脑神经元调谐到第二谐波（H2神经元）增加其最小阈值（MT）的一个类似的程度的脉冲强度的增量存在的背景噪声。此外，H2神经元表现出一致的尖峰率在其最佳的振幅和更尖锐的强度调谐与背景白色噪声相比，沉默的条件。以往的研究表明，在相同的噪声条件下，听觉中脑神经元对声强的分析适应于脉冲强度的增加。本研究进一步研究了噪声条件下听觉中脑神经元的回声定位脉冲频率和频率分析。数据显示，H. Pratti在存在背景噪声的情况下不移动静息频率。听觉中脑神经元频率分析与噪声存在下的静息频率处理高度相关，表现为恒定的最佳频率（BF）、频率敏感性和频率选择性。因此，我们的研究结果表明，在背景白色噪声中的听觉中脑神经元的反应是适应处理回声定位脉冲在噪声条件下。
Acoustic communication signals are inevitably challenged by ambient noise. In response to noise, many animals adjust their calls to maintain signal detectability. However, the mechanisms by which the auditory system adapts to the adjusted pulses are unclear. Our previous study revealed that the echolocating bat, Hipposideros pratti, increased its pulse intensity in the presence of background white noise. In vivo single-neuron recording demonstrated that the auditory midbrain neurons tuned to the second harmonic (H2 neurons) increased their minimal threshold (MT) to a similar degree as the increment of pulse intensity in the presence of the background noise. Furthermore, the H2 neurons exhibited consistent spike rates at their best amplitudes and sharper intensity tuning with background white noise compared with silent conditions. The previous data indicated that sound intensity analysis by auditory midbrain neurons was adapted to the increased pulse intensity in the same noise condition. This study further examined the echolocation pulse frequency and frequency analysis of auditory midbrain neurons with noise conditions. The data revealed that H. pratti did not shift the resting frequency in the presence of background noise. The auditory midbrain neuronal frequency analysis highly linked to processing the resting frequency with the presence of noise by presenting the constant best frequency (BF), frequency sensitivity, and frequency selectivity. Thus, our results suggested that auditory midbrain neuronal responses in background white noise are adapted to process echolocation pulses in the noise conditions.
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影响因子：
--
作者：
Hage SR;Metzner W
通讯作者：
Metzner W
FM 和 CF-FM 蝙蝠对恒定频率-频率调制 (CF-FM) 声音的下丘反应的诱发电位研究
DOI：
10.1007/s00359-019-01326-4
发表时间：
2019-04-01
影响因子：
2.1
作者：
Fu, Ziying;Xu, Na;Chen, Qicai
通讯作者：
Chen, Qicai
影响因子：
2.8
作者：
Bates, Mary E.;Stamper, Sarah A.;Simmons, James A.
通讯作者：
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DOI：
10.1098/rspb.2017.0451
发表时间：
2017-05-31
影响因子：
4.7
作者：
Brumm, Henrik;Zollinger, Sue Anne
通讯作者：
Zollinger, Sue Anne
影响因子：
2.4
作者：
Lu, Youyi;Cooke, Martin
通讯作者：
Cooke, Martin