Talk:Stochastic resonance

Physics Low‑importance

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Non-essential?

Article would much benefit if it contained encyclopedic definition of the subject.--82.148.3.124 (talk) 20:49, 25 June 2010 (UTC)[reply]

This article begins with this:

Stochastic resonance (SR) is observed when noise added to a system changes the system's behaviour in some fashion.

This seems like a definition by non-essentials, because it doesn't say anything about something that is stochastic. Is stochasticity taken to be a part of the definition of "noise"? If so, it needs to say that explicitly rather than leave us guessing. Michael Hardy (talk) 07:29, 3 February 2010 (UTC)[reply]

I don't want to work much on the article, but I agree with above comment. Really, the entire article seems to be written from the signal processing perspective, which is unfortunate, the subject is much larger than just signal processing.

A more physics friendly statement could be:

Stochastic resonance (SR) is a behavior of non-linear systems in which random (stochastic) fluctuations in the micro state cause deterministic changes in the macro state. This occurs when the non-linear nature of the system amplifies certain (resonant) portions of the fluctuations, while not amplifying other portions of the noise.

IlyaV (talk) 22:07, 26 October 2010 (UTC)[reply]

A more useful definition would describe SR as a central concept in neuroscience. The brain selectively amplifies useful patterns of activity in an evolutionary way. They are amplified in a stochastic or more simply chaotic fashion, selected by memory and the environment.

Benjamin Ostrow (talk) 04:26, 29 November 2012 (UTC)[reply]