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The key difference between positive and negative feedback is their response to change: positive feedback amplifies change while negative feedback reduces change. This means that positive feedback will result in more of a product: more apples, more contractions, or more clotting platelets.
Negative feedback occurs when a system’s output acts to reduce or dampen the processes that lead to the output of that system, resulting in less output. In general, negative feedback loops allow systems to self-stabilize. Negative feedback is a vital control mechanism for the body’s homeostasis.
Negative feedback changes a variable back to it’s original value and is constantly adjusting within the body. If your temperature is to high, a negative feedback loop works to lower it. If your temperature is low, it will bring it back up. It’s a balancing act.
Negative feedback occurs when a system’s output acts to reduce or dampen the processes that lead to the output of that system, resulting in less output. In general, negative feedback loops allow systems to self-stabilize. Negative feedback is a vital control mechanism for the body’s homeostasis.
The main difference between positive and negative feedback loops is that the positive feedback loops amplify the initiating stimulus, moving the system away from its equilibrium whereas the negative feedback loops counteract the changes of the system, maintaining them in a set point.