Extinction

What it means

If a behavior stops earning whatever reward was maintaining it, whether that reward was a treat, attention, or something else entirely, the behavior typically fades out over time. This is a normal, expected part of how learning works, not something that requires punishment to achieve.

A real example

A dog that used to get let outside every time it whined at the back door stops whining once whining reliably no longer opens the door, and a quiet sit does instead.

A worked example

Carlos's puppy whines at the door to be let out. Carlos used to open it immediately, so whining paid. Now he waits for a quiet moment, then opens it, and the whining slowly fades over a couple of weeks, because it no longer works.

Signs it is working

• The behavior happens less often over days or weeks.
• It lasts for shorter periods when it does occur.
• The dog tries other behaviors, which you can reward instead.

What it is not

Extinction is not punishment. Nothing unpleasant is added, but the reward is taken away, which is why the dog sometimes tries harder at first.

Why it matters

Behaviors that keep getting rewarded keep happening. Understanding extinction explains why a habit like barking for attention keeps going, even when it annoys you.

How to use it

1. Work out what is reinforcing the behavior: attention, food, access, or even eye contact.
2. Stop providing that reward, every time and without exception.
3. Reward a different behavior in its place so the dog has something else to do.
4. Expect it to get worse before it gets better, and stay consistent.

Is ignoring the behavior enough?

Rarely on its own. Without a replacement behavior the dog may escalate or invent a new way to get the same result. Pair it with rewarding something you do want.

Related terms

Keep learning

• Operant Conditioning →
• Reinforcement Schedule →
• Differential Reinforcement →