This article is rated Start-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects:

Physics Low‑importance This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles Low This article has been rated as Low-importance on the project's importance scale. Mathematics Low‑priority This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MathematicsWikipedia:WikiProject MathematicsTemplate:WikiProject Mathematicsmathematics articles Low This article has been rated as Low-priority on the project's priority scale.

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