Understanding Conflict: The Myth of the Amygdala Hijack

I recently gave my favorite presentation, “Different Not Difficult: Understanding Conflict Dynamics a New Way”, for Will Work for Food, a weekly show with an international audience of dispute resolution professionals. Note: you’re welcome to join! [VIDEO LINK] One section drew more questions than any other, and it was the part where I told the room that something they had all been taught, something I once taught too, turns out not to be true.

A note before we start: I am not a neuroscientist. But the nurse in me has always loved understanding the biology behind why we do what we do, and the mediator in me sees that biology play out in communication every day. I think that Joyce Weiss describes exactly why this knowledge matters,

“I have found that all of the markers in personal development, emotional intelligence, customer mindset, relationship building, are improved when people learn the roots and causes of conflicts, particularly in themselves, and learn tools to manage conflict in a way that works for all parties.”

Here’s the story.

There is no amygdala hijack.

If you have ever sat through a workplace training on emotional intelligence, you have probably heard the story. Your brain has an alarm called the amygdala, and when emotions run high, the alarm supposedly seizes control, shuts down your thinking, and you get hijacked. The phrase came from Daniel Goleman's 1995 bestseller “Emotional Intelligence”, and it was repeated so often that people mistook a metaphor for anatomy. Joseph LeDoux, the neuroscientist whose amygdala research Goleman was popularizing, has spent the last decade correcting the record, writing plainly that the amygdala is not a fear center and that his work was misread. The brain does something in conflict, absolutely. It just is not a hijacking. And what it actually does explains why conflict escalates so quickly, and what we can do about it.

What Does the Amygdala Actually Do?

The amygdala is not a threat detector. It is a mattering detector. Researchers now describe it as a relevance detector, a system that evolved to flag whatever matters to you, and its one job is to ask, over and over, “does this matter to me?” Neuroscientist Lisa Feldman Barrett's research goes further: emotions are not triggered by dedicated brain circuits at all, which is part of why the single-villain hijack story does not hold up.  Many parts of the brain become active when we feel emotions.

The best everyday picture of the amygdala is a smoke detector. It does not put out fires. It does not run the building. It cannot tell the difference between burnt toast and a house fire. It smells smoke and pulls the alarm, and it sounds that alarm first so the thinking brain can check second.

What Sets Off the Brain's Alarm?

The detector flags anything new, urgent, or important. In practice, that means:

Newness. Anything unfamiliar or unexpected. A new face, a new situation, a plan that suddenly changed. Not because new is bad, but because new is unknown, and the detector's job is "I can't tell what this is yet, so pay attention."

Surprise and uncertainty. Ambiguity is one of its strongest triggers. (If ambiguity makes you super uncomfortable, this likely doesn’t surprise you at all!) A vague email from your boss that just says "we need to talk" sets it off harder than a clear complaint would. The detector hates not knowing.

Good things. This is the one we don’t expect. The amygdala fires for rewards, good news, things you want, faces you love. Excitement rings the same bell. That is part of why big positive moments, a wedding, a promotion, giving a talk to a group of peers that you admire, can feel physically overwhelming too.

Social signals. Faces especially. Eye contact, expressions, tone of voice. We are wired to treat other people's reactions as high-priority information, so the detector watches faces almost constantly.

Notice what that list means for conflict. The alarm can't tell the difference between different and dangerous. It just knows something matters. Sorting out which is which is the thinking brain's job, and it can only do that job once the chemicals settle.

Why Does Conflict Escalate So Quickly?

When the alarm rings, your body releases stress chemicals from two places at once. Little clusters of cells deep in the brain spray noradrenaline and dopamine directly onto your thinking circuits, and the adrenal glands near your kidneys pump adrenaline into your bloodstream within seconds, followed a few minutes later by a slower wave of cortisol that keeps the system revved. These are the same chemicals that make your heart pound and your palms sweat. They are great for your muscles and reflexes. They make you faster and more alert.

But the thinking part of your brain, right behind your forehead, is picky. A little of those chemicals sharpens it. A flood overwhelms it. Amy Arnsten's research at Yale shows that when stress chemicals surge, the connections in the prefrontal cortex (thinking) weaken for a while. The circuits don't break, they just lose their grip, like a phone with a weak signal. Meanwhile, the flood strengthens the faster parts of the brain that run on habit and reflex. It's a handoff, not a hijack. The careful thinker steps back, and the automatic responder steps up.

That is a smart design if you are jumping out of the way of a car. It is a terrible design for a hard conversation, because hard conversations need exactly what just went offline: weighing words, seeing the other person's side, remembering what you meant to say instead of what you always say. Two people in that state, each running on habit and reflex, can take a small disagreement somewhere neither of them intended in a matter of seconds. That is why conflict escalates so quickly. Not because either person is broken, but because both alarms are ringing at once.

Why Are We Built to Overreact?

Here is the question I asked myself while preparing this talk: if the detector is just checking whether something matters, why does the body go into fight or flight?

And the answer is, because the body does not wait for the full answer. The detector asks one question, “does this matter”, and the body prepares for the worst case, just in case, while the thinking brain checks.  We double down on assuming danger for self-protection.  In our history, the cost of missing a real threat was final, and the cost of a false alarm was just a racing heart. So, we are built to overreact. Every one of us. That is not a flaw in your character. It is the price of an alarm that never sleeps through a fire.

It helps to know that the first chemical splash is not actually fight or flight yet. It is a call to mobilization, “wake up and be ready”. The same adrenaline that would fuel running away also fuels running toward, which is why a wedding and an emergency both give you the pounding heart. It only becomes fight or flight when the interpretation lands on threat. The body readies the engine. The story steers it.

How Do Triggers Work?

The detector learns. Whatever mattered before, painful or wonderful, gets flagged faster next time. Our brain says if it is the color of a T-Rex, you’re about to be eaten, even though on inspection, it’s not even a dinosaur.  A trigger is your smoke detector remembering an old fire. The alarm is real. The fire usually isn't.

That is why triggered reactions feel out of proportion, to the people around us and often to ourselves. The other person sees burnt toast. Your detector smells a fire from years ago. Both of you are responding honestly to what you perceive. You are just perceiving different fires.

Can You Change How Your Brain Responds to Conflict?

Yes, in three ways, and none of them is arguing with the alarm.

The first is in the moment, in the body. The trade between thinking and reflex is temporary, and the calmer the body, the clearer the thinking. That is why skills practiced ahead of time survive the flood. Habits are what's left when thinking gets shaky, so we build better habits.  This begins with recognizing what being triggered feels like, as it happens.

The second is also in the moment, in the mind. Remember that the detector is built from your history, which means its first reading of any situation is a guess weighted by the past. The alarm is answering, "what did this mean before?" while the actual question is, "what does this mean now?" When the alarm rings, the thinking brain's job is to question the assumption: “Is this the old fire, or is this something new?” “Is this person actually attacking me, or does their tone just resemble someone who did?”

Staying present, with this person, in this conversation, on this day, is how we give the current moment a chance to be different from the one our detector remembers.  It also helps to notice our assumptions and question them.

The third is over time. Detector settings can be updated, not by reasoning with them, but by new experience. Every time the alarm rings, no fire appears, and the conversation goes okay anyway, the setting loosens a little. That is slow, and it is real. It is also what mediation does: it gives people a safe repetition of the very conversation their detector flagged as dangerous.

Key Takeaways

• The "amygdala hijack" is a metaphor from Daniel Goleman's 1995 book, not current neuroscience. Joseph LeDoux, whose research the idea was built on, has spent roughly a decade correcting it.

• The amygdala is a relevance detector, a mattering detector, not a fear center. It flags newness, uncertainty, good news, and social signals, not just threats.

• Under a flood of stress chemicals, the thinking brain temporarily loses its grip while habit and reflex step up. It is a handoff, not a hijack.

• The alarm can't tell the difference between different and dangerous. Only the thinking brain can, once the chemicals settle.

• We are built to overreact because false alarms were always cheaper than missed threats. That is standard equipment, not a character flaw.

• The detector reads the present through the past. Questioning your first assumption and staying present gives this moment a chance to be different from the one your brain remembers.

• The response is trainable in the moment through a calmer body, and over time through safe, repeated experiences, which is exactly what mediation provides.

  
  

Frequently Asked Questions

Is the amygdala hijack real? No. The amygdala does not seize control of your brain or shut down your thinking. Stress chemicals temporarily weaken careful thinking while strengthening habit and reflex. The thinking brain is handicapped for a while, not hijacked.

What is the amygdala's actual job? It is a relevance detector. It flags anything that matters to you, new, uncertain, social, good or bad, and sounds the alarm so the rest of the brain pays attention.

Why do I say things I regret in conflict? Because under stress, the brain trades its best tool for its fastest one. Deliberate thinking weakens, habits take over, and you say what you always say instead of what you meant to say.

Can you stop the alarm from going off? No, and you would not want to. The skill is what you do in the seconds after it rings: notice the alarm, check for actual fire, and let the chemicals settle before you respond.

How does mediation help with any of this? Mediation makes the conversation predictable: a clear process, ground rules, a steady pace, no surprises. That quiets the alarm enough for thinking to return, and it gives people a safe experience of the very conversation they had been avoiding.

Ready for the Conversation You've Been Avoiding?

If a conversation in your workplace or family keeps escalating faster than anyone intends, the problem is probably not the people. It is a skills gap, and skills can be learned. I help people have the conversations that matter so they can find their best way forward. [Schedule a discovery call] or explore [conflict coaching] and [speaking and training] to learn more.

References

• Arnsten, A.F.T. (2009). Stress signaling pathways that impair prefrontal cortex structure and function. Nature Reviews Neuroscience, 10(6), 410-422.

• Barrett, L.F. (2017). How Emotions Are Made: The Secret Life of the Brain. Houghton Mifflin Harcourt.

• Goleman, D. (1995). Emotional Intelligence: Why It Can Matter More Than IQ. Bantam Books.

• Janak, P.H., & Tye, K.M. (2015). From circuits to behaviour in the amygdala. Nature, 517, 284-292.

• LeDoux, J.E. (2014). Coming to terms with fear. Proceedings of the National Academy of Sciences, 111(8), 2871-2878.

• LeDoux, J.E. (2015). Anxious: Using the Brain to Understand and Treat Fear and Anxiety. Viking.

• Sander, D., Grafman, J., & Zalla, T. (2003). The human amygdala: an evolved system for relevance detection. Reviews in the Neurosciences, 14(4), 303-316.

About Kimberly Best

Kimberly Best, MA, is the founder of Best Conflict Solutions, LLC. She holds a master's degree in Conflict Management from Lipscomb University and is a court-listed civil and family mediator in Missouri and Tennessee, a FINRA arbitrator, and adjunct faculty at Lipscomb University's Institute for Conflict Management. She serves on the board of the Association of Missouri Mediators and is Immediate Past President of the Tennessee Association of Professional Mediators. Her work on conflict coaching was published in the Australasian Dispute Resolution Journal in 2025. Kim helps people find their best way forward through mediation, conflict coaching, and training.