FM成分对CF-FM蝙蝠下丘神经元恢复周期的作用

Effects of FM Component on the Recovery Cycle of Inferior Collicular Neurons in CF-FM Bat

唐佳;付子英;Jen Philip Hung-Sun;陈其才;

1:华中师范大学生命科学学院和遗传调控与整合生物学湖北省重点实验室

2:Division of Biological Sciences and Interdisciplinary Neuroscience Program

3:University of Missouri-Columbia

摘要
目的探讨调频(frequency-modulated,FM)成分在恒频/调频(constant frequency-frequency mod-ulation,CF-FM)蝙蝠下丘(inferior colliculus,IC)神经元恢复周期中的作用。方法在5只听力正常的大蹄蝠IC记录单个神经元的反应及CF和CF-FM声刺激模式下的神经元恢复周期曲线。结果以CF刺激条件下的恢复周期曲线为对照,CF-FM声刺激使大部分神经元恢复周期缩短(49.1%,P<0.001),少部分延长(38.2%,P<0.001),极少部分不发生变化(12.7%,P>0.05)。结论回声定位信号中的FM成分在CF-FM蝙蝠缩短恢复周期以处理高重复率的回声信息方面显得尤为重要,有利于CF-FM蝙蝠IC神经元对高重复率回声的分析。
关键词
FM成分;下丘神经元;恢复周期;CF-FM蝙蝠
基金项目(Foundation):
国家自然科学基金(30670695);; 美国密苏里大学生物科学系基金的资助
作者
唐佳;付子英;Jen Philip Hung-Sun;陈其才;
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