Has anybody read the above book, or anything like it?
"Briefly, Dr. Previc presents the provocative theory that approximately 80,000 years ago, high levels of dopamine led to the profound developmental leaps that most set modern man apart from his human and primate relatives. To do so, he follows the thread of dopamine through the critical cognitive skills of motor programming, working memory, cognitive flexibility, abstract representations, temporal analysis/sequencing, and generativity/creativivity."
The book is $80, so I can't buy it. And I don't know enough (i.e. any) neuroscience to read real journal articles. But if our digestive systems have been influenced by our modern environment, why not our brains? And our brains control lots of stuff (i.e. everything), so I'm sure there's some dopamine and eating stuff out there.