Neurons in parallel
Article Abstract:
The value of stochastic resonance to enhance the detection of weak signals has been adequately demonstrated in nonlinear elements but still needs to be explored for biological parallel signal detection. In a biological experiment, both signal enhancement and stochastic resonance are observed. The experiment uses a parallel array of 100 ion channels of voltage-dependent alamethicin peptides in a lipid bilayer. In another experiment, open-close threshold elements are used instead of neurons and exposed to weak, periodic signals and a common external noise. The results are similar to those obtained with neurons.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
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Stochastic resonance and the benefits of noise: from ice ages to crayfish and SQUIDs
Article Abstract:
Use of stochastic resonance techniques and the noise in nonlinear systems can assist in the detection of weak signals. The nonlinear systems may include electronic circuits and sensory organs of living organisms. In the stochastic resonance methods, a weak periodic noise is subjected to large-scale environmental fluctuations with nonlinear cooperative effect. This increases the magnitude of the weak noise, which can be easily detected. This method can be used in technological, physical and biomedical disciplines.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
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Noisy waves
Article Abstract:
Noise can bring benefits as a result of stochastic resonance, and systems where coherent or collective dynamic properties are increased by noise can be described as a process of spatiotemporal stochastic resonance (STSR). This has been achieved through experimentation, as is reported by Jichang Wang, Ken Showalter and Sandor Kadar. There are implications for chemical dynamics, and this research can help in understanding how the brain functions.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
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