So they had people play this game while they were being scanned in an fMRI, and two conditions: in some trials, they're told you're playing another person who's playing right now and we're going to match up your behavior at the end and pay you if you win.
Kod njih su ljudi igrali ovu igru dok su ih skenirali u fMRI, u dvostrukim uvjetima. U nekim ispitivanjima, rečeno im je: "Igrate s drugom osobom koja upravo sada igra i mi ćemo vas na koncu usporediti i platiti vam ako pobijedite."