| Issue |
Europhys. Lett.
Volume 64, Number 1, October 2003
|
|
|---|---|---|
| Page(s) | 131 - 136 | |
| Section | Interdisciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i2003-00147-6 | |
| Published online | 01 November 2003 | |
Impact of Poisson synaptic inputs with a changing rate on weak-signal processing
1
School of Cognitive and Computing Sciences,
University of Sussex Brighton, BN1 9QH, UK
2
Department of Physics, Nanjing University - Nanjing
210093, PRC
Received:
14
March
2003
Accepted:
25
July
2003
We explore the response of a single Hodgkin-Huxley neuron to a
local field potential input, which is modeled as a subthreshold
harmonic signal, plus synaptic inputs from independent Poisson
processes. The synaptic input rate is periodically modulated with
the same frequency as the signal. The neural behavior depends
remarkably on the signal frequency. The neuron is more
sensitive to the signals with frequencies ranging from 30 to
65
and can produce regular output spikes with a low
variability. Increasing the mean synaptic input rate can improve
the detection of the subthreshold signal. These results further
verify that noise can play a constructive role in signal
processing of neurons.
PACS: 87.16.Ac – Theory and modeling; computer simulation / 05.40.Ca – Noise
© EDP Sciences, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.