The Flavor Graph
Gizmodo has a super interesting wrapup on a Nature paper about why Asian and Western food taste so different:
According to the study, Western cuisines have a tendency to pair ingredients that share many of the same flavor compounds. East Asian cuisines, however, do precisely the contrary, avoiding ingredients that share the same flavor compounds. The more flavors two ingredients share, the less likely they would be paired together in Asian kitchens.

Hi, I'm 
Hi Noah,
This is fascinating. Due to family commitments I spend at least a week every year in Thailand, and obviously end up eating loads of Thai food, which I love. But no matter how much I love it, I always end up craving ‘Western food’ – any generic non-Asian food will do. One hit is fine, and then I can go back to Asian. I’d never really been able to work out why I don’t pine for the food of home when I travel somewhere with a European cuisine but this explains it.
On a related subject, there’s a book I have called The Flavour Thesaurus which arranges flavours into something like a colour wheel. Not sure if it’s available in the States, but you might find it interesting if it is.
Cheers,
James