期刊论文

The Response Properties and Physiological Mechanism of Processing Doppler-shift Compensation Signal of The Single-on and Double-on Neurons in The Inferior Colliculus of Hipposideros pratti

Tang Jia

中文

生物化学与生物物理进展

1000-3282

2018

45

7

723-735

10.16476/j.pibb.2017.0459

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31772454]

本校为第一且通讯机构

恒频-调频(constant frequency- frequency modulation,CF-FM)蝙蝠独特的多普勒频移补偿(Doppler-shift compensation, DSC)行为可保证其对回声信息的精确提取.那么听中枢加工DSC信号的适应性机制是什么?本实验模拟CF-FM蝙蝠DSC后的回声定位信号,研究下丘(inferior colliculus,IC)神经元加工DSC信号的特点及生理机制.实验共获得117个IC神经元,在CF-FM声刺激下,神经元表现为single-on(SO,n= 83)和double-on(DO,n= 34)两种反应模式.无论是在蝙蝠的正向还是负向补偿过程中,SO和DO神经元对回声反应恢复到50%时的双声刺激间隔(inter-pulse interval,IPI)值,均会随补偿条件的改变而发生变化.当双声刺激...

The special Doppler-shift compensation (DSC) behavior of the constant frequency-frequency modulation (CF-FM) bats ensures accurate extraction information of echo. Then how the auditory center of bats to process the echo after DSC behavior, and what is the adaptive physiological mechanism? In this study, we simulated the echolocation signal of the CF-FM bat in the DSC behavior, and studied the response properties and physiological mechanism of the inferior collicular (IC) neurons in processing the DSC information. A total of 117 IC neurons were recorded, and under the CF-FM sound stimulation, t...