Tag: aversive stimulus

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Counter Conditioning

Counter conditioning alongside systematic desensitisation is very powerful. If we do slow desensitisation we can get horses accepting of aversive stimuli, but if we pair that with an appetitive – food or scratches or anything the horse values and wants more of – then we can change how they feel about the aversive. It can even become something they want, rather than something they just tolerate.
Too often we halter horses and spray them, clip them  etc, without thinking about how the horse feels, horses sometimes provide a lot of feedback in the form of pulling away, fidgeting or even being openly petrified, but often they just shut down as they feel they can’t say “no”. So what do some people do in those scenarios were they acknowledge the horse has a problem? They may hold them tighter, tell them off and even sedated them to be clipped.
How much better is it to take time to desensitise and counter condition? Well Mojo was petrified of fly spray, the first time I sprayed him was in his stable and he nearly squashed me against the wall he spooked so much.
What did I do about it? Well I started systematic desensitisation and counter conditioning. Starting at a distance with the spray so he noticed but did not react, all at liberty – then they can flee if necessary.  I used my verbal bridge signal “good” and rewarded him – sometimes with a scratch, sometimes with a treat.
Gradually over the last few weeks he will stand next to me and not flinch when the water is sprayed, (I used water to conserve the fly spray – but need to counter condition the smell of the fly spray once he is OK being sprayed.)
Today I did this in the field and he stayed and stood still whilst I sprayed water high in the air so the droplets actually fell on him, a few weeks ago he would have startled big time and run off.
I can now spray his legs from about a metre away but if I get too close he looks aways – so there is still some conflict present.
We must be very mindful of avoiding conflict – he wants the treats or scratches but is still unsure about the spray – this is why slow progress is better than force.
Clipping will be next but as he was sedated last time it may take much longer to overcome that fear.
He is still a little touch sensitive on his head, but getting better, he was targeting my hand today with his cheek – that is a new behaviour and not solid yet.

His feathers are still a sensitive area, but I can brush them and put cream on the sore bits if I run my hand down his legs, he gets a big butt scratch for that.

I have had Mojo for just over 2 months now so he has come a long way. He is very quick to learn new things and very eager to participate in the shaping programs.

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What’s in a word?

What is in a word?

Take learning theory and peoples interpretations, some say release of pressure is a reward some say it is a relief at best.

What is certain is that in operant conditioning terms it is negative reinforcement, therefore for the release/relief to happen there has to be an aversive stimulus applied first. Once the animal complies with our request the stimulus is removed.

So it may be leg aids – use and remove as soon as the horse complies, it may be ground work – apply an aversive stimulus to form a behaviour e.g teaching a horse to back up. Often people teach back up using a light touch on the chest – getting firmer until the horse backs, the pressure is removed on the slightest of movements.

I don’t wish to argue about various methods of horsemanship – it is a personal choice but the more I learn about the emotions involved the more I wish to use positive reinforcement as much as possible.

We do live in a world where most people use aversive stimuli to form behaviours, so our horses need to understand other peoples cues.

Dictionary defintions:

Reinforcement – The action or process of reinforcing or strengthening; The process of encouraging or establishing a belief or pattern of behaviour

Stimuli – A thing that arouses activity or energy in someone or something; a spur or incentive; A thing or event that evokes a specific functional reaction in an organ or tissue

Reward – A thing given in recognition of service, effort, or achievement; A fair return for good or bad behaviour:

Relief – A feeling of reassurance and relaxation following release from anxiety or distress; The alleviation of pain, discomfort, or distress

Release – Allow or enable to escape from confinement; set free: Allow (something) to move, act, or flow freely; Remove restrictions or obligations from (someone or something) so that they become available for other activity: Allow (something) to return to its resting position by ceasing to put pressure on it:

Aversive – Someone or something that arouses a strong dislike or disinclination.

References
http://www.oxforddictionaries.com

http://www.equitationscience.com/aversive-stimuli – some are challenging the notion that horses are not safe unless we use negative reinforcement.

Connection Training
Academy of Positive Horsemanship

Read and decide, which would you prefer for yourself? Also worth looking at the emotions involved in negative versus positive reinforcement.

http://www.thehorse.com/articles/33927/study-human-interaction-shapes-horses-negative-emotions

Jaak Panksepp describes the 7 basic emotional systems all mammals exhibit.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3181986/

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Tolerance

Tolerance
1.
“a fair, objective, and permissive attitude toward those whose opinions, differ from one’s own.” online dictionary definition.

Whilst my understanding of how animals learn gets deeper I find it really difficult to be tolerant with some aspects of horse training.

People who don’t understand the reasons for how a horse learns have some excuse for using techniques that may cause the horse distress. However there are people who understand operant and classical conditioning but still deliberately train horses using aversive stimuli.

Some say horses can’t be trained any other way – but why is that? All other animals on the planet can be trained using appetitives rather than aversive stimuli.

Take trailer loading – I hear people say make the outside of the trailer more uncomfortable than the inside. Why not turn it round and make the inside of the trailer more appetitive than the outside?

We can alter how the horse feels about anything using systematic desensitisation and counter conditioning.

This is not to say we must all be “fluffy bunny huggers” and let the horse do exactly what he wants without due regard for our and his safety.

We can train safety using positive reinforcement just as well, if not better, than if we use negative reinforcement.

Given a choice what would your horse choose – the relief from something he doesn’t like or a reward of something he likes.

It is the horse who decides what is aversive and what is appetitive.

Anytime you train and trigger a flight response (fear response) then you have used an aversive stimulus. I hear people say we don’t train with fear but how do you get a horse to do something he finds innately frightening, if you don’t use positive reinforcement? You add a more aversive stimulus than the stimulus of the frightening thing. How can that be good for the horses emotional wellbeing?

If you know please tell me!

The next module in Jo Hughes’ course is on affective neuroscience – how animals express emotions.

I am also going to a lecture by Jaak Panksepp in April – really looking forward to learning more.

Jack Panksepp has done a lot to help people understand emotions, and many have come to accept animals as sentient beings.

P.S I still use some negative reinforcement, as I ride other peoples horses, but it does not feel right to me to tap a horse with a whip or to use spurs.
Conventional aids can be taught using postive reinforcement.
The world is changing, as we know more about how animals feel and learn.

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Terminology

An interesting note on Facebook about the terms people use to describe some horse training techniques. Some describe the release in pressure/release or the retreat in approach and retreat as a reward, this makes it more acceptable but is not correct. The release follows the addition of an aversive stimulus and is at the best relief but not a reward, it is negative reinforcement in that something the horse finds aversive is removed.

I must remember to use the correct terminology as well. Some groups on Facebook get very upset when I say that what they do is negative reinforcement, some admit they use it but don’t think positive reinforcement works for horses.

Personally I think we can use all quadrants of operant conditioning in training but keep the negative reinforcement as a safety measure, or use non-escalating pressure (e.g tension on a lead rope with no increase in pressure – just waiting until the horse relaxes or moves forward). Also the positive punishment can be used in extreme circumstances if it averts a dangerous situation.