Horse Training and the Nervous System: What's Really Happening in Your Horse's Brain | Dr. Stephen Peters (Pt. 2)

We say we want a willing horse.

Then we climb on, and we start cramming.

And when the horse gets tight, or slow, or stuck, we do the one thing that guarantees it gets worse — we add pressure.

This is Part 2 of my conversation with Dr. Stephen Peters, and this time he brought a horse's brain. Cut in half, in his hands, on the table between us. He points to the cingulate. He points to the little kidney-bean pituitary. And he shows me, physically, the difference between a horse who can talk itself back down and a horse who has no way back.

That difference has a name. It's a chemical called GABA.

An empowered horse can produce it — can send the "stand down" signal before the cortisol ever floods the system. A horse in learned helplessness can't reach it. Same event, two completely different animals, and most of what separates them is what we wired in, and the state we wired it in.

We get into the cocktail — dopamine, norepinephrine, acetylcholine, oxytocin, serotonin — and why drilling the same exercise seven times flattens every one of them. Why release is not the same thing as relief, and only the horse gets to tell you which one it was. Why recovery, the part everyone skips, is where the learning actually locks in. And why an hour on the clock is a human invention your horse never agreed to.

Then it opens out — touch, exercise, diet, the five domains, allo-grooming, the prairie voles who fall apart in isolation and settle the second the herd rushes back in.

And we close on Charles Darwin. Not the line everyone quotes. The one almost nobody does — the one where he says it's the cooperative communities, the ones that bond and help each other, that represent the highest level of evolution.

Horses have the chemistry for that built in. Dr. Peters' whole argument is simple: let's use it.

Start with Part 1 if you haven't — this picks up right where we left off.

Dr. Stephen Peters is a neuroscientist who directed a clinic for brain health and memory, and co-author of Evidence-Based Horsemanship (with Martin Black). His most recent books are Horse Brain Science and A Horse's Life (with Mark Rashid and Chrissy McDonald), which pairs 19 real case studies with the neurological detective work behind each one.

You can find all the books by Dr. Stephen Peters here: https://www.horsebrainscience.info/books

1. Horse Brain Science: The Neuroscience of Ethical Horsemanship
2. Horse Brain Science: A Foundation for Equine Neuroscience
3. The Book of Neuropoetry
4. Evidence Based Horsemanship
5. A Horse's Life: The Neuroscience of Equine Welfare

You can find out more about Dr. Stephen Peters on his website - Horse Brain Science

And on Substack

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0:00 Why we get in the way of our own horses
2:00 A horse brain, cut in half: corpus callosum & the cingulate
5:00 The stress circuit — HPA axis, cortisol, and GABA
8:00 Empowered vs. helpless: who can reach the brake
9:06 Wiring confidence vs. wiring fear
11:15 Lady's three stations: rebuilding a horse's love of learning
13:40 The neurochemical cocktail — and why drilling drains it
16:00 Sending the horse away: oxytocin, prediction, and the payoff
18:00 Release is not relief
19:25 A word from Total Feeds
23:00 Recovery, hippocampal replay & why silence matters
27:38 Short sessions, switching horses & the neurodivergent brain
28:57 Spaced vs. massed learning; every nervous system is a snowflake
32:11 The petals on the flower: touch, exercise, diet & the five domains
40:45 Allo-grooming, oxytocin & the prairie voles
44:13 Darwin's Descent of Man: cooperation as the highest evolution
46:43 Dr. Peters' books, Substack & wrap

Interested in more from Noëlle?

Noëlle's writing again — head to her Substack for essays, observations, and the kind of thinking that doesn't fit in an episode. https://noellefloyd.substack.com

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https://www.youtube.com/@noellefloyd_plus

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Thank you for your listening!