Stochastic biperiodic oscillations in the electroreceptors of paddlefish

被引:53
作者
Neiman, A [1 ]
Russell, DF [1 ]
机构
[1] Univ Missouri, Ctr Neurodynam, St Louis, MO 63121 USA
关键词
D O I
10.1103/PhysRevLett.86.3443
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report that the electroreceptors in paddlefish possess the novel property of being biperiodic, that is, being composed of two intrinsic self-sustained noisy oscillators, one residing in the hair cells, and another in the terminals of primary afferent neurons. The two oscillators are coupled unidirectionally. Thus the receptor system as a whole undergoes stochastic biperiodic oscillations. We characterize the spontaneous activity of this system of coupled biological oscillators, and also discuss the impact of the biperiodic organization on the transduction of external sensory stimuli. In particular, we show that the existence of hair cell oscillations leads to additional variability of afferent spike trains.
引用
收藏
页码:3443 / 3446
页数:4
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