How our brain works and how it makes decisions are things that scientists would like to know. Various notable psychologists, behaviorists and economists are busy in the field of neuromarketing. They are all looking for the reasons why consumers decide to make certain purchases and the are surprisingly far along.
The experts in the fields of psychology and economics that have a say in this are: Prof. Gerhard Roth, Prof. Gigerenzer, Prof. Esch as well as Dr. Scheier, Prof. Kenning and Dr. Plassmann.
I found this report on Vimeo (in German):