how to fuck brains to make people throw money at you
the neural machinery behind social influence and why the best marketers have been exploiting it for decades without knowing why it works.
You’re browsing a product page.
It’s fine. You’re undecided.
Then you notice: 47 people bought this in the last 24 hours.
Suddenly, it feels more urgent. More real. You’re reaching for your card before you’ve consciously decided anything.
Or you’re at a restaurant, about to order something, and then you see what the table next to you is having.
Their food looks incredible. You change your order. You spend more than you planned.
Or you’re watching someone on Instagram unbox something expensive.
You don’t even want it. And yet.
None of this is a character flaw.
It’s not weakness or gullibility.
It’s your brain doing exactly what it evolved to do.
The short version: deep in your frontal cortex sits a cluster of regions, the medial frontal cortex (MFC) that is constantly, automatically, and involuntarily tracking what other people are doing, what they’re getting, and what it means for you.
Understanding how it works is a masterclass in why social proof, scarcity, and vicarious reward are the most powerful levers in marketing.
1. What is the MFC?
The medial frontal cortex is not a single area but a collection of regions, including the anterior cingulate cortex (ACC divided into the gyrus ACCg and sulcus ACCs), the dorsomedial prefrontal cortex (dmPFC), the supplementary motor area (SMA), pre-SMA, and the medial orbitofrontal cortex (OFC).
The MFC sits at the center of what researchers call the “social brain” network, heavily interconnected with the amygdala, nucleus accumbens, superior temporal sulcus (STS), and temporoparietal junction (TPJ).
Crucially, MFC connects strongly to limbic structures (emotion and reward), which distinguishes it from lateral frontal cortex that connects more to sensorimotor regions.
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