Stochastic resonance

The topic of stochastic resonance came up today and I was lent a copy of Noise by Kosko.  SR occurs only with a non-linear system and a detector with a threshold (neurons are one example.)   The psychophysics paper Visual perception of stochastic resonance has an image (right) that shows this property very nicely.  The paper itself focuses on showing that the human brain’s visual system is nearly or as efficient at using SR as a computer to process information.

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