05/25/2025
Treatment for Trauma induced reactivity goes far beyond traditional dog âtrainingâ!
You're a dog trainer and your dog behaves like that?!
I have had many cruel things said to me about Mando's reactivity because it is assumed that if I specialise in canine behaviour, I should have the perfect dog. In all honestly, I have achieved greater behavioural change with other dogs than I have with Mando and that is for one crucial reason: Reactivity has different causes.
There are many causes of reactivity, so if I am dealing with frustration or a ritualised behaviour, its much quicker and easier to address. However, if I am working with a dog that has suffered a trauma, like Mando, the process is much more complicated. Here's why:
When a dog suffers a traumatic experience, several things occur in the brain:
- The hippocampus (crucial for memory) may actually shrink, inhibiting a dog's ability to process and retain new memories (in this case positive experiences with other dogs)
- The amygdala (responsible for processing emotions such as anxiety and fear) can become hyperactive, increasing fear based reactions, like barking and lunging at other dogs. This can greatly reduce a dogs threshold, requiring greater proximity from dogs to achieve emotional change.
- Trauma can also inhibit the prefrontal cortex ( the control centre of the brain which helps regulate emotions) triggering impulsivity, poor emotional regulation and aggression. Therefore, we see the dog struggle with anxiety or impulse control in other areas of their life, such as when we have guests or go to the groomers.
- The HPA Axis (hypothalamic pituitary adrenal axis) can become dysregulated, triggering chronic stress and sensitivity to triggers.
- Trauma can also cause maladaptive neuroplasticity ( the brains ability to adapt by creating new neural connections) making it challenging to overcome fearful responses.
- Trauma can impact the levels of neurotransmitters, such as dopamine, serotonin and noradrenaline, which are essential to emotional regulation.
So it is not as simple as "train your dog", when the cause of the reactive behaviour is trauma. Trauma creates significant neurological changes, meaning the training journey is entirely different to other dogs, even if they are displaying behaviours that appear the same to the untrained eye.
Understanding that reactivity is not simply a lack of training or socialisation, is crucial to showing compassion for guardians with reactive dogs. We should never make snap judgements and assume that because someone has a reactive dog, they are a bad guardian or a bad trainer/behaviourist. You don't see their daily struggles and you will never appreciate the time, effort and tears that goes into supporting their dog's emotional struggles.- Holly Leake
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References
Algamal, M., Ojo, J.O., Lungmus, C.P., Muza, P., Cammarata, C., Owens, M.J., Mouzon, B.C., Diamond, D.M., Mullan, M. and Crawford, F., 2018. Chronic hippocampal abnormalities and blunted HPA axis in an animal model of repeated unpredictable stress. Frontiers in Behavioral Neuroscience, 12, p.150. Available at: https://doi.org/10.3389/fnbeh.2018.00150.
Seksel, K., 2014. Stress and Anxiety - How Do They Impact the Pet? World Small Animal Veterinary Association (WSAVA) Congress Proceedings. Available at: https://www.vin.com/apputil/content/defaultadv1.aspx?pId=12886&id=7054740&print=1.