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Appeasement gestures: Behaviours a dog uses to ask for space or to present himself/herself as nonthreatening. Appeasement gestures may include scratching, yawning, licking lips, play bows, turning head or body away, sniffing the ground, lifting up a paw, slowing down movement, freezing or a submissive grin. These signals are a normal part of dog interaction, but in some situations, they may be signs of stress.


Barrier frustration: Behaviour, particularly barking and lunging, that occurs when a dog is prevented by a barrier from reaching a stimulus. The barrier can be a fence or leash or anything else that blocks the dog from accessing whatever it is that is exciting or arousing him or her (another dog, for example).

Bite inhibition: A dog’s ability to control the amount of pressure when mouthing an object. Lack of bite inhibition may be an indicator of aggression. Indications of a dog who does not have good control over his/her bite may include pressure that causes bruising, bleeding or deep punctures; multiple bites in an incident; grabbing and shaking an object; or biting down and refusing to let go.


Capture: Marking and rewarding a naturally occurring behaviour, such as sitting or lying down, as the dog is doing it. Once a behaviour is captured, marked and rewarded, the dog learns to associate the behaviour with the reward. This is the first step in teaching a dog to do a behaviour on cue.

Classical conditioning: Repeated pairings of a neutral stimulus with an unconditioned stimulus generates the unconditioned response, or one which requires no specific training. For example, the smell of food (an unconditioned stimulus) may cause a dog to salivate (the unconditioned response).
Over time, the dog may learn to associate the sound of a wrapper or can opener (a neutral stimulus) with the food and may begin to salivate when he hears the noise (the unconditioned response). Eventually, the can opener or wrapper sound becomes a conditioned stimulus, one that elicits a consistent response.

Clicker training: A form of positive reinforcement training that uses a signal, most commonly a clicker, to pinpoint correct behaviour. The signal is immediately followed by a desirable reward, such as a treat, a toy or an opportunity to play. The signal helps the dog to identify which specific behaviour is earning him the reward.

Click: The action of using a marker (most often a clicker) to pinpoint a desired behaviour. May also be used to describe the sound the clicker makes.

Competing motivation: A stimulus or situation that causes conflict between what the dog desires and what the human desires from the dog. An example of this is a dog, who is trained to reliably come when called, not returning to his person at the dog park because he is distracted by people and other dogs.

Compound stressors:
Events that increase a dog’s stress level and cause him/her to be more on edge and prone to be reactive or upset.

Conflicted: When a dog simultaneously wants to do something and is afraid to do it. For example, a dog can be conflicted when approaching someone new: he/she wants to approach to smell and investigate, but is afraid of the person reaching hands out towards the dog or bending over to pet him/her.

Correction: An action that stops or punishes a dog for doing an unwanted behaviour. For example, a jerk on the leash. Corrections are a form of punishment and, as such, are not recommended as a training strategy. A number of problems, including increased anxiety, can be associated with the use of correction as a training technique.

Counter-conditioning: The process of changing a dog’s emotional reaction to a situation, from negative to positive. This is done by gradually exposing the dog to the situation in a way that does not upset him/her, while pairing the situation with a desirable reward. The goal is to create a positive association with the situation. An example of this type of scenario is encountering another dog on a walk. Through counter-conditioning, the dog can be taught that the approach of another dog is the signal for a treat, rather than the signal for uncontrolled barking and lunging.

Criteria: The standard by which a pet owner judges a behaviour, or the standard used to decide which behaviour is acceptable and which is unacceptable. Criteria can be adjusted as needed during training, in order to enable the dog to successfully learn the correct behaviour.

Cue: Signal given to a dog to elicit a desired behaviour. ‘Cue’ and ‘command’ are traditionally synonymous, but the word ‘command’ is not commonly used in reward-based training, as it has a connotation of using force to make a dog do something. ‘Cue’ is most often used to refer to a training situation where a dog is asked to perform a behaviour and is rewarded for his/her success.


Default behaviour: Any behaviour a dog does when he/she is uncertain of what else to do, particularly when he/she is excited or overstimulated. This may include jumping, barking or pawing. Through training, pet owners can replace an unacceptable default behaviour, like jumping, with an appropriate default behaviour, like a sit or down stay.

Desensitise: Getting a dog used to a scenario that causes him/her distress, by gradually presenting the situation in a manner that does not upset the dog.

Distraction(s): Sounds, smells, sights and other stimuli that detract from a dog’s ability to remain focused or perform what’s being asked. A low-distraction environment is ideal for training.

Dominance: A dynamic, fluid relationship a dog has with another dog in a specific scenario. Dominance is not an innate personality trait, but rather a means of getting preferential access to resources, including food, sleeping or resting areas, and mates.
Dominance can change with different variables, including the dogs present and the resources in question. Training methods based on the notion that owner dominance is the key to good behaviour often rely on fear tactics, intimidation and pain to coerce dogs to comply. This can lead to an increased risk of aggression and biting.
In many cases, dogs that are labelled as ‘dominant’ are actually fearful, insecure and conflicted. Frequently, these dogs require a behaviour intervention by a veterinary behaviourist, or a veterinarian working in combination with a certified professional dog trainer.


Extinction: Ending a behaviour by removing reinforcement. For example, a dog barks to get his/her owner’s attention; if the person ignores the dog while they are barking, removing the reward or attention, that behaviour ceases to be rewarding and the dog will stop barking. Extinction does not require punishment; instead, it relies on removing reinforcement of unwanted behaviour.

Extinction burst: When previously reinforced behaviour no longer works to get the desired reward, pet owners may see a surge of stronger, more intense behaviour, as the dog makes one last effort to get the reinforcement he/she seeks. A dog who has been rewarded for barking may bark with more gusto when he/she realises that it is being ignored. It is important to note that, when a behaviour is no longer reinforced, it can sometimes get worse — and more intense — before it fades away.


Fading the lure: The process of taking the lure out of the training so that the dog learns to do the requested behaviour on another cue, such as a hand signal or word. Fading the lure teaches the dog to do the behaviour without being dependent upon a treat being in the trainer’s hand. To fade the lure, certain tricks can be used, such as keeping a treat in the hand doing the luring, but rewarding with a treat given with the other hand. From there, progress to holding the hand shaped as if it has a treat, but with no actual treat inside. Next, gradually decrease the size of the hand movement needed to cue the behaviour, or shift the behaviour to a new cue.

Fear-free or fearless vet visits: A low-stress approach popular in the veterinary community and other associated practices, like boarding, grooming and training, in which handling, interactions and procedures are done in a manner designed to keep the dog as calm as possible. Strategies include using handling and approaches that are less likely to induce fear, changing the environment, using medications when necessary and offering rewards to encourage willing cooperation from the dog. In every case, the goal is to keep the experience as positive as possible.

Flooding: A training approach sometimes used to force the dog to endure the situation in order to overcome any fears he/she may have. Although the goal is to overcome the urge to flee or fight to get away, it often causes a dog to freeze, flee or fight to get away. This extremely controversial tactic can cause major problems, including an increase in anxiety or aggression.

Functional analysis, or the ABC of a behaviour: Functional analysis looks at three components of behaviour, which are antecedent, behaviour and consequence. Behaviour issues can be analysed using this approach, starting with what elicits the behaviour. For a behaviour like jumping on visitors, the antecedent might be a person coming through the door. The behaviour is what the dog does, such as whining, jumping up and putting paws on people’s arms and legs. Finally, the consequence is what happens to the dog when he/she jumps up, like being petted by the visitor. The ABC analysis can help identify both the problem and the solution. In this example, the petting is reinforcing the jumping, because the dog is being rewarded for his/her behaviour.


Generalise: A behaviour is considered generalised when a dog can reliably be asked to perform the specific behaviour in a variety of different contexts. For example, a dog may consistently respond to a request to sit inside the house, but this behaviour may not be as reliable in a different area, such as the backyard or dog park. Dogs generalise to a certain degree, but for behaviours to be reliably performed anywhere, they need to be practised in a wide range of circumstances.

Go to your spot: A dog who is taught to go to his/her spot (or station) learns to go to a specific area and wait there until he/she is released. A typical spot is a dog bed, a mat, a crate or a designated space in the home (the laundry room, for example).


Habituate: To become accustomed to a specific situation through repeated exposures. A dog may become alert on hearing a noise, for instance, but after hearing the noise repeatedly, they may become indifferent to it and begin to ignore it. This type of learning occurs naturally and doesn’t require a structured training plan. (See also: sensitise.)


Interrupt: To turn a dog’s focus away from an unwanted behaviour as an intervention to stop the unwanted behaviour. From there, the dog can be redirected to an acceptable behaviour. An interruption does not need to be loud or sudden; a slight shuffle of the feet or a quiet clap is ideal.


Learned helplessness:
When a dog learns that, no matter what he/she does, it cannot escape from an aversive situation and gives up trying. Learned helplessness is a negative, detrimental emotional state that has been associated with anxiety and depression.

Low-stress handling: See fear-free or fearless vet visits.

Lure-based training: Using something that a dog is willing to follow (most commonly food) to guide the dog into a desired position (a sit, for example). Once the dog is in the desired position, the lure is used as a reward. A lure can be a treat held in the hand, food on the end of a spoon, a toy, or any other object that a dog will follow as it is moved.


Management: Controlling the environment so that the dog doesn’t have an opportunity to rehearse an unwanted behaviour. For example, a management strategy for a puppy who chews on furniture is to keep him/her in a gated, dog-proofed area, away from furniture.

Mark: To use a specific signal at the moment a desired behaviour occurs, to indicate an acceptable behaviour. (See also: marker.)

Marker: A stimulus that pinpoints the behaviour the dog did to earn a reward. The most common markers are either a clicker or a specific word, such as “good” or “yes”. The marker should be used at the exact moment the behaviour occurs. For example, when teaching a sit, the marker should be used as soon as the dog’s bottom touches the ground. The same marker should be used consistently by every member of the family or household, and should always be followed immediately by a reward.

Motivated: When a dog’s behaviour is influenced by something he/she wants and is willing to work for. A dog who is motivated by games of fetch is both willing to play the game and willing to do what he/she is asked, in order to get access to the game, such as sitting before the ball is thrown.


Negative reinforcement: Use of an aversive or undesirable consequence to teach a specific behaviour. An example is the use of a shock collar to prevent jumping or barking.


Operant conditioning: Increase or decrease in certain behaviours, based on the associated consequences of the behaviour. For instance, a dog may learn to be cautious of the cat after he/she gets swiped across the nose. Or the dog may learn that, when he/she stalks the cat, a game of chase ensues. The quadrants of learning (positive reinforcement, negative reinforcement, positive punishment, negative punishment) fall under the heading of operant conditioning.


Positive reinforcement: Use of positive, desirable or pleasurable consequences to teach a behaviour. An example is offering a dog a reward, such as a treat or toy, for an acceptable behaviour.

Punishment: Use of aversive stimuli to decrease or change a behaviour. Punishment has a variety of negative consequences. Frequent use of punishment may lead the dog to fear his/her handler. Other unintended negative outcomes may be an escalation of the problem behaviour or an increase in aggression.

Predatory behaviour: Behaviour that mimics hunting, capturing and consuming prey. Most dogs exhibit minimal predatory behaviour, although certain breeds retain only pieces of the predation sequence. For example, herding breeds retain the ‘stalk and chase’ portion of the predation sequence, but may not bite or engage in any takedown behaviours, as this would deter them from doing their job of herding dogs without harming.

Predatory drift: When a dog’s behaviour shifts from acceptable play behaviour to predatory behaviour. This sometimes occurs during interactions between large and small dogs; the smaller dog squeals or runs away in fright, causing the larger dog to react to it as a prey dog. Predatory drift is one reason why dog parks and doggy day cares typically maintain separate play areas for large and small dogs.

Premack principle: A less predictable behaviour is made more predictable by rewarding it with a behaviour of higher desirability. For example, this could mean rewarding a dog for heeling (the less predictable behaviour) by releasing him/her to investigate a smell (the more desirable behaviour). The dog learns that, in order to be released, he/she must heel first, which makes that a more predictable behaviour.

Prompt: Using extra reminders, such as pointing, treats or bigger gestures, to elicit a desired behaviour when the dog fails to respond to the initial cue.

Push, drop, stick: Shorthand way to know if a dog is ready for the next step in training. Put the dog through five trials of a desired behaviour. If the dog can correctly do the behaviour four or five times, push to the next level of difficulty. If he/she gets it right only once or twice, drop to a previous, easier level. If he/she gets it right three out of five times, stick to that level.


Rate of reinforcement: The frequency with which the dog is rewarded. The rate of reinforcement can be determined by counting how many rewards a dog is given in 60 seconds, and dividing 60 by the number of rewards given. If the dog is given three treats in 60 seconds, the rate of reinforcement is one every 20 seconds. Dogs who are new to training should be kept at a higher rate of reinforcement (something close to 10 treats per minute) to keep them interested in the training.

Reactive: Acting out in order to ward off or escape a stimulus, for example, other dogs or people. Reactive dogs may be more tense and worked up when separated from the stimulus by a barrier or a fence. Reactive behaviour includes lunging, barking, spinning, jumping, straining on hind legs and growling. Reactivity may also be associated with aggressive tendencies; a reactive dog may escalate from warning behaviour to actual snaps or bites. (See also: barrier frustration.)

Redirect: To shift a dog’s focus from an unwanted behaviour to a desirable behaviour. If a dog is chewing on something that is forbidden (a shoe or book or sofa cushion), he can be redirected to a proper chew toy. He can then be rewarded for chewing an appropriate toy, which reinforces the acceptable behaviour.

Reinforcement, reward(s): A consequence the dog finds pleasurable and desirable. Reinforcement and rewards are learner dependent; some dogs will do what they are asked in return for a treat, while others may be motivated by a special toy or an extra session of play. Reinforcement and rewards are also contextual; what is reinforcing or rewarding in one situation may not be in another. For instance, a dog may find petting to be rewarding at home, but may require a different reward at the dog park.

Resource guarding: When a dog is protective of his valued possessions. Common objects for resource guarding include food bowls or food puzzles and valued toys, but a dog may also guard resting spaces, rooms, people or other items the dog finds that are of value to him/her, including seemingly valueless things like wrappers or Kleenex. Guarding behaviour can progress from warnings of unease, like freezing or snarling, to more aggressive behaviours, like snapping or biting.

Response substitution or differential reinforcement of an incompatible behaviour: Training that teaches a dog to replace an unacceptable behaviour with one that is incompatible with that behaviour. As an example, a dog who lunges on leash may be asked to make eye contact with a trainer, because eye contact is incompatible with lunging at another dog.


Scavenger hunt, treasure hunt: Hiding treats, food or toys inside or outside for the dog to find. A scavenger hunt may be used as an alternative to a food puzzle. For example, kibbles can be scattered on the grass rather than served in a bowl.

Sensitise: To become more sensitive, alert, fearful or reactive to a specific situation through repeated exposures. For example, a noise may initially cause a dog to get a fright, but after hearing the noise repeatedly, he/she may progress to shaking and stress panting when hearing it. (See also: habituate.)

Setting events: Conditions in a dog’s life that make it more likely that the dog will act in a certain manner. For example, a dog who doesn’t get enough exercise may be more wound up and hyper around guests.

Shaping: The process of teaching a dog a complex behaviour by breaking it down into simple steps. The simple behaviours are trained in a gradual progression, with each new step moving the dog closer to the goal behaviour. (See also: successive approximation.)

Socialisation: The process by which a puppy learns about the world. The prime socialisation period of a puppy is from about 8 to 12 weeks of age, but can extend from about 3 to 16 weeks of age. A puppy’s experiences during this time can influence his/her perception and reaction to the variety of people and situations he/she will encounter as it grows up.

Stimulus control: When a cue elicits a predictable and reliable response from a dog. For example, when a dog is asked to sit, he/she does so every time, under a variety of different conditions.

Stress: When discussing dogs, stress is frequently used as a synonym for distress. Dogs can experience stress for a number of reasons, from lack of enough exercise or mental stimulation, to unpredictable and punishment-based interactions with humans. Stress can also be related to environmental and life situations, such as moving, losing a family member or the arrival of a new pet. If a dog is exhibiting signs of stress, it is important to address them as early as possible.

Stress signals: Behaviour and body language indicative of escalating tension and anxiety, such as barking and whining, or pacing and panting. Stress signals may begin with mild avoidance and progress to more extreme anxiety and panic.

Submission: Strategy for interacting with a person or another dog to create harmony and goodwill. Signs of submission can be subtle (a dog holding his/her ears slightly back in greeting) or overt (a dog rolling on his back in front of another dog). (See also: appeasement gestures.)

Successive approximation: Small steps that are used to reach a more complex goal or behaviour. (See also: shaping.)

Systematic desensitisation: Training plan designed to change a dog’s response to an upsetting scenario, by breaking it into small pieces that do not trigger a fear response in the dog. The goal is to teach the dog to tolerate the situation without getting upset or anxious.


Target: Teaching a dog to touch a certain part of himself/herself to an object or area. For example, touching his/her nose to a person’s hand. Targeting can be used to get a dog to move willingly from one place to another. It can be used to teach a new behaviour, such as a spin. Targeting can also help dogs to overcome fear of certain objects; a dog can be taught to target a pair of nail clippers as a way of reducing stress at the groomer’s.

Threshold: A way of describing a dog’s emotional state in a certain situation. A dog who is under threshold is tolerant and relaxed. A dog who is at threshold is mildly stressed, while a dog who is over threshold is anxious and reactive.


Variable schedule of reinforcement: A variance in the length of time or number of behaviours required for a dog to a reward. A variable schedule keeps the dog excited about, and invested in, the training.


Warning signals: Behaviours used by a dog to communicate discomfort with a situation. These can include freezing, growling, barking or snapping. These signals are used to warn a person or another dog to slow down and back off. It is important not to punish warning signals, because they are indicators of the dog’s discomfort; instead, the situation needs to be addressed in order to prevent a bite or a fight.