I am taking a MOOC on this – taught by Vasily Klucharev, in Moscow, of all places!
His English is excellent, and he is backed up by excellent graphics.
He refers to: JSTOR Neuroeconomics: Using Neuroscience to Make Economic Predictions. You will have to register, before you can use this site, but registration is free.
Look at page C28 of pages C26-C42. I wish I could copy it, but their reader will not allow me to do this.
Russia is still behind the times.