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The ‘Lizard Brain’ Is Neuroscience’s Flat Earth Theory

by | Feb 17, 2026 | LinkedIn Articles

Jaye Lee

Jaye Lee

Jaye Lee understands that building a business is less about marketing and more about the person who leads it. As an EMCC ESIA Supervisor and ICF PCC with an MSc in Counselling, she is specifically trained to help you manage any trauma and emotional knots that appear as business obstacles. Jaye uses her own background in starting and marketing small businesses to help practitioners address the internal friction that strategy cannot reach. She focuses on the heart of the founder to ensure that as you grow your practice, you are building something that remains safe, authentic, and sustainable.

The Lizard Brain Is Neuroscience;s Flat Earth Theory

The ‘Lizard Brain’ Is Neuroscience’s Flat Earth Theory Yet It’s Still Taught in Marketing Courses.

The “Neuromarketing” Scam

You know the archetype. Tight black tee. Red string bracelet. Says “dopamine hit” like it’s a coffee order. He slams his fist on the table: “Bypass logic! Scare the reptile! Hit the buy button in the brainstem!”

Cool story. Too bad there is no reptile.

There is no “buy button.” And if you’re selling a $27 PDF like it’s open-heart surgery, you aren’t a genius. You are misinformed.

The brain doesn’t work like a vending machine. And selling like it does? That isn’t strategy, it’s exploitation.

The “Triune Brain” Marketers are obsessed with Paul MacLean’s “Triune Brain” theory. They treat it like the gospel. That theory has been dead since the 1970s.

It is the “Flat Earth” theory of neuroscience. LeDoux (2020) and the NIH BRAIN Initiative (2025) have confirmed that brain evolution is not layered; it is a mosaic. Even lizards have homologues of the amygdala and cortex. You cannot “bypass” the logic center.

When marketers use this language, they aren’t teaching you science. They are justifying Fear Mongering. They want to believe that scaring people is a “biological necessity” rather than just being manipulative.

Bro-Science vs. Actual Science

The Myth:

The Reality Check: Reptilian Brain = Buy Button

False. The Brainstem supports life (breathing/ HR). The NIH BRAIN Initiative (2025) confirms there is “no evidence of autonomous purchasing circuitry” in subcortical regions.

Amygdala = Fear Center

False. The Amygdala detects salience (relevance). Hamann (2024) showed it lights up for joy and reward just as much as threats.

Bypass Logic to Sell

False. Knutson (2023) found that bypassing the prefrontal cortex leads to “Regret Refunds” within 24 hours when executive function comes back online.

The Ethics: Agitating the Pain

They call it “Conversion Optimization.” In therapy, we call this Trauma Activation without Consent; a serious ethical breach.

When a guru teaches you to “agitate the pain point until they are ready to buy,” they are teaching you to dysregulate your client’s nervous system. They want to trigger a fight/ flight response so the client feels unsafe.

In marketing? It’s considered “best practice.” That disconnect isn’t strategy. It’s cognitive dissonance.

The Ethical Alternative: Regulated Persuasion – A 2024 Harvard Business Review field study found the truth:

  • Fear-based emails: +22% short-term conversions, but -61% retention after 3 months.
  • Values-based emails: +14% conversions, but +58% retention & referrals.

The brain rewards trust. It resents terror.

Your New Mantra “I do not exploit nervous system vulnerabilities. I invite regulated, values-aligned choice.”

If your offer needs to terrify someone to sell, it isn’t ready. Go back. Make it so good that a calm, clear, regulated adult says “Yes.”

Have you noticed the obsession with “Brain Hacks” in marketing? Does it make you feel smart, or manipulated? Let’s discuss.