
07/04/2022
Well described and applies to dogs too
A Facebook friend shared videos of some prep with her horses for fireworks. In the video, a group of horses was standing in a paddock and then what sounded like firework noises were played over speakers. The horses all spooked and ran.
I really appreciate this person's effort to prepare her horses for tonight, but it really got me thinking of how this process could be improved to make it less stressful for the horses and actually be effective at decreasing the horse's response to that stimulus.
What people don't understand is that exposure alone does not decrease reactions to scary stimuli and can actually have the opposite effect causing sensitisation. So, going out to your horses' pasture and playing loud firework sounds at random can actually cause their reactions to that stimulus to increase - that's sensitization. This is why our horses don't get better after experiencing a few 4th of July nights in America!
In systematic desensitization we slowly introduce the scary stimulus in small increments that the horse can handle. Every horse in the video reacted with flight, so this process was not systematic desensitization. It was not flooding either because the horses were able to escape- they ran and the noise stopped. This is why their process falls under sensitization.
It could work through habituation, but only if the stimulus occurred in regular intervals. Habituation happens when a scary stimulus is a part of the animal's habitat. For example, my horses were kept in a pasture that's fence line ran parallel with the train tracks. The tracks were probably twenty feet from the fence. When the first train came by, it terrified my horses, but after living in that pasture for a week, they didn't even bother to lift their heads from grazing when they heard the train. This is habituation. Horses learn to disregard stimuli that is unimportant in order to focus on other stimuli that is. This happens when the horse is regularly exposed to the stimulus and over time they learn that it does not harm them and they can safely ignore it. The key word here is regularly. The stimulus must occur often enough for the horse to become habituated.
Doing a few random sessions of playing firework sounds at full blast will just terrorize and sensitize horses to that stimulus. The intentions are good, but ineffective at best, and damaging at worst.
How can we modify this approach to make it less stressful and actually effective?
First, start by introducing the soundtrack at a lower volume. If the horses notice it, turn it down a bit and start there.
Second, play the soundtrack on repeat or at regular intervals in the days leading up to the 4th of July.
Third, gradually increase the volume to full intensity.
In this approach you are keeping the horse below threshold by systematically introducing the stimulus at a level the horses can handle and using the frequency of the stimulus to habituate the horse. It becomes a part of their environment and they know it won't hurt them and is not important. This approach could work without being too stressful or traumatizing.
Randomly inducing fear makes horses more fearful. That's sensitization. Counter conditioning is a great way to help your horse accept loud noises, but if you have a barn full of horses to prepare, a combination of systematic desensitization and habituation could help make nights like tonight a little easier on everyone.
Stay safe tonight.