Having read various threads on various forums since joining 3FC, it seems that when overweight people eat for emotional reasons, they far out eat thin people when they're overeating for emotional reasons.
When my thin DH overeats because he's bored, he'll eat 2-3 servings worth, not the whole bag of chips or cookies. When my thin friends eat extra pizza because 'they couldn't resist' they only eat an extra slice, not the whole pie.
Before I had my medicine induced weight gain and I ate because I was bored, I ate far, far less then I did when I was bored and on the medicine.
So maybe there is a link between the quantity of what overweight/obese people eat and emotional eating that Kolata's study examples did not evaluate.