LIP LICKING AND CHEWING BEHAVIOR
I am really concerned about Bravada’s licking and chewing behavior so I started to do some research on the subject. Some findings I got from 2 other forums.
There are several common contexts where this behavior may be shown by an animal: 1- anticipation for food or just after eating – here the behavior is not concerning 2- when “threatenedâ€, placed under stress, when the aninal is nervous (ie the approach/retreat or round penning paradign) – here the behaviour is of concern and thus not a good thing. 3- when the animal is in behavioral conflict - it is information and while not desirable, is not always avoidable in this context. 4- when stress or pressure is relieved – this is the “whew! Glad that’s over “ reaction.
Lip licking and chewing are displacement behaviours (normal behaviours but out of context) and are indicators of conflict in the animals mind.
Lip licking is a conflict signal in pretty much every species (at least humans, dogs, cats, horses…). It is a signal that animals show when stressed or in a situation of perceived potential conflict. It is considered an appeasement/submissive signal as well for this same reason (ie the animal shows it in situation of potential conflict). This is the point where the horse gets in an approach/avoidance or retreat conflict – hence the licking and chewing. He was gaining just enough confidence not to run from the handler, but not enough to approach – so he was conflicted about what to do. It is hard to perceive licking/chewing as a “positive†thing in the context of round penning considering that you get it by chasing the horse around the pen. The idea of convincing a horse to come to you by sending it away from you is a bit of a contradiction.
Extracts from an interesting article on the subject “Licking/Chewing=Learningâ€. Sue McDonnell, PhD, Certified AAB The lowered head, relaxed posture, licking, and chewing are part of an autonomic response when stress or pain fluctuates , or when panic or startle resolve. The first scientific description I encountered was in the field of neurophysiology. In mammals, this cluster of responses occurs when the animal is returning from predominantly sympathetic tone (fight or flight response) back to parasympathetic tone (feed or breed response). This process is also known as sympathetic attenuation. So it is seen in all sorts of situation.
When a horse is suddenly frightened, then quiets down, the head drops, there might be salivation, tongue and jaw movements, and a sigh. It does occur in all horses, feral or domestic, whenever startled by something in the environment, or after a disturbance.
So in the popular demonstrations in which a horse is run around a pen, then allowed to stop – I think of the same simple underlying autonomic physiology. Scare or excite the horse, then stop.
Certainly, it could also be consistent with the more complex behavioral concept of displacement behavior. This term refers to behavior occurring out of context (usually feeding behavior) in a thwarted goal or conflicted situation. The horse is motivated to escape, but is thwarted from escape and the energy is redirected to feeding motivation, which includes salivation, chewing,etc. The jaw and tongue movements relieve the energy and so attenuate the stress.
The physiologist’s and behaviorist’s interpretations seem much more plausible than the submission, trust, “digesting a thoughtâ€, or “dawning moment†you hear about in popular horse talk. That’s why some people question whether the high-pressure aspect of some “natural horsemanship†techniques are the most humane. They would say that if the horse is thinking, it’s likely “ I’m scared, want to get out of here nowâ€, or “Thank goodness this guy has stopped chasing me in circles so I can relax for a minuteâ€
More recently we’ve been doing some cognition studies using all positive reinforcement. This involves basic operant conditioning trials designed to test the ability of horses to understand a concept in relation to discriminating between various olfactory, auditory, or visual stimuli, presented two at a time. When at first the horse accidentally made the correct response, it got a food reward. If the choice was incorrect, no treat, no punishment, we just went on to the next presentation.
Each horse reached an “Ah ha!†point where they seemed to “get itâ€, after which they made nearly 100% correct choices. They seemed more eager in their anticipation of the next presentation and more enthusiastic in their response as if they could play the game all day. And their enthusiasm for learning seemed to stay with them.
Some individuals do go through a stage of apparent frustration when early – or by chance—they have a series of incorrect choices. They might paw and turn their head back away from the stimulus presentation board as if they want to leave. When those animals finally “get itâ€, they might show some lip licking, jaw movements, and deep exhalation, but those signs are not as strong as the situations involving fear, pain, or punishment learning paradigms.
Interpretation of Bravada’s behavior
In light of these findings, I would say Bravada’s behavior is expressed in 3 different situations
1- If I run with her (after her in her mind) and I am too intense in my play, she will turn around, face me, lick and chew to relieve the pressure I put on her. More or less like the round penning situation. Therefore, I need to be very cautious not to put pressure on her and stay at a good distance or not run after her so I don't step into her bubble. 2- In the last months I have introduced her to many new things (ball, walk, trot, stop with the cordeo, piaffe, collected frame, new lungeing method, spanish walk). She is an enthusiastic learner but she gets frustrated when she does not get it. She paws and turns her head away from the cue. So when I click, she will release the frustration by chewing and licking. Like “ouf I got itâ€. I am not sure we can always avoid some kind of frustration from our horse when we teach them now things. I will try to look for the first sign of frustration and try to be more consistent and explicit with my cues. 3- I also realized that she sometimes chews when she hears the click even though she is under no stress: being quite relaxed, her head down and not being asked to do anything. This would be in anticipation of food like a Pavlov's reflex. I don't think I can do much about it
_________________ Madeleine
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