  ## Encyclopedia > Negative feedback

Article Content

# Negative feedback

Negative feedback is a type of feedback.

Open systems (ecological, biological, social) contain many types of regulatory circuits, among which positive and negative feedbacks. Positive and negative does not mean desirable or not. The negative feedback loop tends to slow down a process, while the positive feedback loop tends to accelerate it.

When a change of variable occurs in a system, it reacts to regain its equilibrium.

In the negative feedback, the system responds in such a way as to reverse the direction of change. Since this tends to keep things constant, it is stabilizing and allows to maintain homeostasis.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia
 Search over one million articles, find something about almost anything!

Featured Article
 Quadratic formula ... have y = b/(2a), so we add the square of b/(2a) to both sides, getting $x^2+\frac{b}{a}x+\frac{b^2}{4a^2}=-\frac{c}{a}+\frac{b^2}{4a^2}.$ The ...  