In dog training, the term capturing refers to a technique where the trainer reinforces a behavior that the dog naturally exhibits on its own, without any prompting or luring. The trainer observes the dog and waits for the desired behavior to occur spontaneously. When the behavior happens, the trainer immediately marks it using a marker such as a verbal cue ("Yes!" or "Good!") or a clicker and follows up with a reward, such as a treat or praise. This method relies on the dog making the connection between the behavior and the reward through repeated reinforcement.

Capturing is particularly effective for teaching behaviors that dogs naturally display, such as sitting, lying down, or barking. It allows the trainer to build a strong and positive association with the behavior, encouraging the dog to repeat it more frequently.

For instance, if a trainer wants to teach a dog to sit, they would wait for the dog to sit on its own. As soon as the dog sits, the trainer would use a marker, such as a verbal cue or a clicker, to mark the behavior and immediately give the dog a treat. Over time, the dog learns that sitting leads to a positive outcome and begins to offer the behavior more regularly.

The concept of capturing is rooted in the principles of operant conditioning, as described by B.F. Skinner. It is a form of positive reinforcement that leverages the dog's natural behaviors to achieve training goals effectively.