Brain Scans Reveal INFP vs INFJ Differences (with Dr Dario Nardi)

Geek Psychology: Play Life Better

You’ve been told you’re either an INFP or INFJ, but the difference is way deeper than quirky memes or stereotype lists.

Ever feel like no online test or personality quiz gets you? This video actually uses neuroscience—real brain scans, not TikTok speculation—to reveal what’s going on inside INFP and INFJ minds. Your entire approach to decision-making, values, and even the way you daydream can be explained (finally!) by science, not tea leaves.

Why should you care? Because misunderstanding your own nature—or someone else’s—leads to frustration, missed connections, and settling for one-size-fits-all advice. Trust me, your next “aha!” about yourself or that mystical INFJ friend is coming.

I sat down with Dr. Dario Nardi, a neuroscientist who literally mapped the brains of INFPs and INFJs, to break down what’s actually happening up there. You’ll see real scientific evidence, hear about the biggest brain activity differences (some will surprise you), and learn how to spot these types in the wild—based on behaviors, not buzzwords.

Whether you’re an INFP who can’t explain your gut feelings, or an INFJ spinning in Ni-territory, here’s how to finally understand what sets you apart. Consider this your shortcut to self-acceptance—and way fewer “am I mistyped?” crises.

Dig this kind of science-backed personality breakdown? Hit subscribe for more! If you learned something (or just want to vent about being misunderstood), drop a comment below—I reply to as many as I can.

#INFP #INFJ #MBTI #Personality #GeekPsychology #DarioNardi #Neuroscience

00:00 The REAL Differences Between INFP and INFJ (Backed by Science)

02:36 Why is it easier to sort INTP vs INTJ?

04:53 What are the most striking brain activity differences between INFPs and INFJs?

12:54 How do Fi and Ni show up differently in the brain?

31:08 What are observable behaviors that suggest different brain patterns/types?

55:36 What is the next step for INFPs and INFJs?

01:00:09 Where can people learn more?