I'm still trying to figure how the hell they get a wine geek with a glass of wine through an MRI in the first place?

They actually have to drink with straws. MRI data shows very specific cognitive function info, surveys tell us what 'the people' are actually doing.
We are looking at a lot of things and the fMRI mostly shows that when trained, the brain processes wine sensations in a completely different area. A University of Bordeaux study showed that when the participants saw white wine, the processing took place in the area of the brain associated with white wine and when they had the white wine, colored red and included with other red wines, the processing took place in the area where red wine descriptors were stored. The descriptors went from green apples, peaches figs and pears to cherries, plums and raspberries. Same wines. A relatively recent Stanford study did somthing similar with prices and scoring. These wines are $10-15; 80-85 points. Same wines, now told they are more expensive - up go the points!! No real surprise just interesting to see how the brain is working. Many, many limitations, variables and flaws but it is a fun area:
http://www.medicalnewstoday.com/articles/93947.php and there are better writeups available. Lt is late.
I just received a very intersting paper literally this morning:
Cork and talk: The cognitive and perceptual bases of wine expertise by Angus Hughson, School of Psychology, University of Sydney. He has conducted some fascinating studies I am just getting ready to dive into. I will se if I can share copies or segments if you are interested. At first glance it looks like there is very little, if any, perceptiual differences between a trained and untrained taster - the differences are mostly in descriptive capacities. AND it looks like the more highly trained experts are more likely to make mistakes in replications of descriptive analysis then the less trained subjects.
Because I work with so many groups of researchers we love to cross reference and correlate studies. At the end of the day for me it is all about - 'so what can we do with the information?' You will love the depth and detail of our work on words - I am trying to set up a meeting with George Lakoff at Berkeley - the guru of framing and metaphors. Watching his stuff on YouTube gets me all fired up!
BTW, I am a maestro of mousse! Seriously. Apprenticed in pastries, really strong garde mange background with a passion for chaude froide work that no one does any more. I make a roulade of scallop mousseline with smoked trout and fresh herbs in aiolli on a fennel slaw that will know your socks off. What is your favorite style in a more intense red? I will show you the magic of 'Flavor Balancing' - swear it will really mess with you mind! You get to pick a wine you love that will no way, couldn't possibly, ya gotta be sh@*&%ting me, never go with that dish. Let me know.