Zack Lynch has more on neuromarketing.
"Almost every focus group throws up someone more vocal and bossy, who either inspires others to follow or react against [them] or both," says Tim Ambler, senior fellow at London Business School. Perhaps that's why only one in 100 products survives in the marketplace after the typical product launch."
"According to researchers, the act of deciding whether to make a purchase lasts 2.5 seconds. When the possibility of buying something first occurs to a person, the visual cortex, in the back of the head, springs into action. A few fractions of a second later the mind begins to turn the product over, as though it were looking at it from all sides, which triggers memory circuits in the left inferotemporal cortex, just above and forward of the left ear. Finally, when a product registers as a "strongly preferred choice"—the goal of every advertiser—the action switches to the right parietal cortex, above and slightly behind the right ear.
Really though, go read the whole thing.