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- Title
Frequency sensitivity in Hodgkin-Huxley systems.
- Authors
Yu, Yuguo; Liu, Feng; Wang, Wei
- Abstract
Abstract. The frequency sensitivity of weak periodic signal detection has been studied via numerical simulations for both a single neuron and a neuronal network. The dependence of the critical amplitude of the signal upon its frequency and a resonance between the intrinsic oscillations of a neuron and the signal could account for the frequency sensitivity. In the presence of both a subthreshold periodic signal and noise, the signal-tonoise ratio (SNR) of the output of either a single neuron or a neuronal network present the typical characteristics of stochastic resonance. In particular, there exists a frequency-sensitive range of 30 100 Hz, and for signals with frequencies within this range the SNRs have large values. This implies that the system under consideration (a single neuron or a neuronal network) is more sensitive to the detection of periodic signals, and the frequency sensitivity may be of a functional significance to signal processing.
- Subjects
NEURONS; BIOLOGICAL neural networks; SIGNAL processing
- Publication
Biological Cybernetics, 2001, Vol 84, Issue 3, p227
- ISSN
0340-1200
- Publication type
Article
- DOI
10.1007/s004220000203