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Steven Peters

Steven Peters

Dr. Stephen (Steve) Peters is a board-certified clinical neuropsychologist and equine neuroscientist, co-author of Evidence-Based Horsemanship with Martin Black, who runs Horse Brain Science Clinics.

Aug 4, 2026

PaulaHOST
14:46
So Steve, I'd love to get your take on this.
14:49
Yeah.
14:50
My perfect example of this in the book w- would be Tuff.
14:54
Tuff was, uh, highly competent but low arousal.
14:57
And so if you look at Tuff's history, it was one in which he'd get to do something and then, uh, allow-- his nervous system would pendulate back down again.
15:06
And so he just developed all these competencies.
15:09
And so people who didn't know what they were reading began to think of Tuff as, "Is this horse shut down?" Well, Tuff simply needed someone to communicate and say, "Okay, this is what our job is." And the example of Tuff is that he was in a parade, and there's all kinds of things going on around him, and he wasn't shut down.

11 MINS LATER

PaulaHOST
26:16
They're overwhelmed, and what's going on underneath that people can understand?
40:40
This is my favorite part.
40:41
Okay, yeah.
40:43
So here's an aqueduct, and para just means around, so periaqueductal.
40:51
And there's gray matter in this, in this structure here.
40:54
What happens there? Well, it seems that pain signals that go there can actually create a narcotic, an opioid in your system.
41:05
So some of those messages go to the amygdala for fear, and then we get the, uh, HPA axis.
41:13
Hypothalamus sends s-signals to the pituitary, sends signals to the adrenal glands, and they pump us full of, of cortisol.
42:48
Yeah

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