Novel class of neural stochastic resonance and error-free information transfer |
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Authors: | Yasuda Hideaki Miyaoka Tsuyoshi Horiguchi Jun Yasuda Akira Hänggi Peter Yamamoto Yoshiharu |
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Institution: | Department of Psychiatry, School of Medicine, Shimane University, 89-1 Enyacho, Izumo City, Shimane 693-8501, Japan. |
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Abstract: | We investigate a novel class of neural stochastic resonance (SR) exhibiting error-free information transfer. Unlike conventional neural SR, where the decrease of a system's response with too much noise is associated with an increase in the baseline firing rate, here the bell-shaped SR behavior of the input-output cross correlation emerges versus increasing input noise in spite of no significant increase of the baseline firing rate. The neuron thus acts as an error-free detector for weak signals. An integrate-and-fire model with short-term synaptic depression convincingly validates our experimental findings for SR in the human tactile blink reflex. |
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