Presentation 2000/3/14
Neutons have tamed the thermal noise for signal detection
Tateo Shimozawa,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) The energy thresholds of the sensory cell of the cricket wind receptor were determined to be at the thermal noise level k_BT(4×10^<-21> J at 300 °K). The determination was based on a laser-Doppler velocimetry of the receptor hair and the Stokes'theory for viscous force. The mechanoreceptor exhibits fluctuations in spike timing to near-threshold stimuli. Simultaneous double repordings revealed independency of the fluctuations between cells. The cells employ the internal thermal noise as the seed of randomness for a non-correlated signal sampling. The thermal noise paradoxically enhances the detection of weak signal below the threshold.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Sensory cell / Wind receptor hair / Energy threshold / Thermal noise / Stochastic resonance / Signal detection
Paper # MBE99-160,NC99-149
Date of Issue

Conference Information
Committee MBE
Conference Date 2000/3/14(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair
Vice Chair
Secretary
Assistant

Paper Information
Registration To ME and Bio Cybernetics (MBE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Neutons have tamed the thermal noise for signal detection
Sub Title (in English)
Keyword(1) Sensory cell
Keyword(2) Wind receptor hair
Keyword(3) Energy threshold
Keyword(4) Thermal noise
Keyword(5) Stochastic resonance
Keyword(6) Signal detection
1st Author's Name Tateo Shimozawa
1st Author's Affiliation Neuro-Cybernetics Laboratory, Research Institute for Electronic Science, Hokkaido University()
Date 2000/3/14
Paper # MBE99-160,NC99-149
Volume (vol) vol.99
Number (no) 687
Page pp.pp.-
#Pages 6
Date of Issue