> If the triune brain model was completely false (as stated by the caricature of "brain is not an onion with a tiny reptile"), it would not be straightforward t

> If the triune brain model was completely false (as stated by the caricature of "brain is not an onion with a tiny reptile"), it would not be straightforward to even identify the neocortex -- how do you know it is 'neo', what is it a 'neo' of and so on? I don't think that the intention of the article is to say it's completely false. It's that there is no neat evolutionary separation between the different parts of the brain. The "reptile" brain in humans is not truly the brain of a tiny reptile. We inherited a similar structure, but it evolved with us just like the rest of our brain. The same goes for the tiny reptiles we see today, their brains also evolved alongside them. If we truly had a tiny reptile inside our brain then logically we could simply study the behavior of tiny reptiles if we wanted to study that part of the human brain. Which is probably the kind of misconception the authors of the article want to refute.