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Dog training glossary

Threshold

Quick answer

The point at which a dog becomes too aroused, fearful, or reactive to think clearly or respond to known cues.

Written by the TailorPup team, updated September 2026. See our editorial approach.

What it means

Effective training, especially counter-conditioning and desensitization, happens below threshold, where a dog can still notice a trigger, take treats, and engage with training. Once "over threshold," a dog's ability to learn drops sharply, which is why simply exposing a dog to more of what scares it, hoping it will "push through," usually backfires.

A real example

A dog that can calmly watch another dog from 40 feet away but starts barking and lunging at 15 feet has likely crossed its threshold somewhere in between.

A worked example

Dina's dog explodes when another dog gets within 10 meters. At 15 meters, it looks and then takes food. Dina trains at 15, then 13, then 11 meters over several weeks. The threshold shrinks because the dog never has to go over it.

Signs it is working

  • The dog notices the trigger and still takes treats.
  • It responds to known cues.
  • Its body is calm, not stiff or frantic.

What it is not

It is not a fixed number. It moves with sleep, stress, hunger and the type of trigger.

Common mistake

Trying to train or correct a dog that's already over threshold, when the priority in that moment should be creating distance and calming down, not teaching.

Why it matters

Below threshold a dog can learn. Above it, it cannot. Working at the right distance is often the difference between progress and a bad day.

How to use it

  1. Learn your dog's early signs: stiffening, staring, lip licking, pulling toward the trigger.
  2. Find the distance where the dog notices the trigger and still takes treats.
  3. Practice there, rewarding calm behavior.
  4. If the dog goes over threshold, calmly increase the distance and stop the session.

Does the threshold change every day?

Yes. Tired, hungry or stressed dogs have a lower one. A trigger you handled last week might be too much today.

Related terms

DesensitizationGradually exposing a dog to a trigger at a low enough intensity that it doesn't provoke a reaction, then slowly increasing it.Counter-ConditioningDeliberately pairing a trigger that causes fear or overexcitement with something that produces a better emotional response.TriggerA specific stimulus that reliably sets off a reaction in a particular dog.

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