A form of learning where a subject is rewarded for desired behavior by the removal of a negative, such as pain, hunger, or a distressing noise. This term is often confused with punishment, which is the introduction of a negative (the punishment) to discourage behavior.

Negative Reinforcement is the removal of something bad. Punishment is the introduction of something bad.
Negative Reinforcement: "Good behavior" in the prison system, where the negative (prison time) is reduced as a reward for not causing problems.

In comparison, the original prison sentence itself is punishment - a negative introduced to discourage behavior.
by YamadaOtter November 5, 2009
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