The Three-Brain Change Model
Make behavior change stick by addressing head, heart, and gut together
- Difficulty
- Moderate
- Time to result
- ~ongoing to results
- Steps
- 3
- Confidence
- 85%
Hudson maps behavior onto three brains: the human prefrontal cortex (intellect), the mammalian brain (emotion), and the reptilian brain (nervous system). If you only work at one level, change will not stick. Faced with defensiveness, you first find the truth intellectually in whatever triggered you, which calms the head. Then you feel the emotion stagnating beneath the shame and genuinely welcome it in, not merely accept it, which handles the heart. Finally you come to your senses literally, by rubbing your legs or putting attention on the soles of your feet, which tells the nervous system it is safe. Addressing all three is what makes a new pattern actually hold.
Origin
A model Joe Hudson teaches for shifting deep-seated behavior, drawn from the triune-brain idea and applied to defensiveness, shame, and fear in his coaching practice.
Core principles
- 01Lasting change requires all three brains, not just insight
- 02The intellect calms when it finds the truth in the trigger
- 03Shame stagnates whatever emotion is hiding underneath it
- 04The nervous system calms through the senses, not through logic
- 05Change that skips a level does not stick
How to run it
- 1
Head: find the truth in the trigger
When something makes you defensive, acknowledge intellectually that there is truth in what was said and find it. Anything you can be defensive about is in some way true about you.
Pro tip The realization 'there's nothing you could say that isn't true about me' dissolves the need to defend.
- 2
Heart: feel the emotion under the shame
Defensiveness sits on shame, and shame stagnates an emotion underneath it. Locate that emotion and welcome it in fully rather than just tolerating it.
Pro tip Welcoming an emotion is different from accepting it; welcome invites it to move.
Watch out Anything you feel ashamed of you will keep doing, because shame stagnates.
- 3
Gut: come to your senses
The nervous system is signaling danger. Rub your legs, feel the bottom of your feet, or otherwise return to physical sensation to tell the reptilian brain you are safe.
Pro tip Any act of coming to your senses will down-regulate the fight-or-flight response.
In the wild
When Joe sees his wife or child get defensive, he reads it as shame rather than attack. He addresses the shame directly ('there's nothing in me that wants you to feel bad about this') while calming his own three brains, and the fight collapses because two people were only ever defending against shame.
→ The conflict dissolves once the underlying shame is met instead of counter-attacked.
Common mistakes
Working only in the head
Modalities that let you describe everything wrong with you but change nothing fail because they never touch the emotional and nervous-system levels.
Accepting an emotion instead of welcoming it
'I will accept this emotion' still holds it at arm's length. Welcoming it in is what lets the stagnated feeling actually move and release.
Is it for you?
Best for
People who can describe exactly what is wrong with them but find nothing actually changes.
Not ideal for
Situations needing a purely tactical, external fix rather than internal shift.
From the transcript
“There's three ways there's three brains at play... the prefrontal cortex... the mamleian brain... and then there's the reptilian brain... If you don't address the…”
“come to your senses, literally feel like rub your legs or just put your attention on the bottom of your feet... it will calm the…”
From the episode
23 Lessons For Being Kinder To Yourself - Joe Hudson - #925
Joe Hudson