What Is Operant Conditioning?
Operant conditioning is the learning process in which behaviour is modified by its consequences. Animals (and humans) repeat behaviours that produce rewards and reduce behaviours that produce unpleasant outcomes or no outcome. It is the scientific foundation of all effective animal training. B.F. Skinner formalised the theory, though the principles were observed by animal trainers long before.
Understanding Operant Conditioning
Operant conditioning has four quadrants, each defined by whether something is added (+) or removed (−) and whether the behaviour increases (reinforcement) or decreases (punishment). Positive reinforcement adds something desirable to increase a behaviour (giving a treat for a sit). Negative reinforcement removes something unpleasant to increase a behaviour (releasing leash pressure when the dog stops pulling). Positive punishment adds something unpleasant to decrease a behaviour. Negative punishment removes something desirable to decrease a behaviour.
For companion animal training, the scientific and ethical consensus strongly favours positive reinforcement and negative punishment over methods involving positive punishment or significant negative reinforcement. Positive reinforcement with precise timing builds reliable behaviours, a positive relationship between handler and animal, and an animal that actively engages in training. Aversive methods may suppress behaviour in the short term but are associated with increased anxiety, fearfulness, and redirected aggression in research on companion animals.
The single most important technical skill in operant conditioning for pet owners is timing. A reinforcer (treat, toy, praise) must be delivered within 1–2 seconds of the desired behaviour to associate clearly with that specific behaviour. Delayed rewards effectively reinforce whatever the animal was doing in the seconds between the behaviour and the reward.