I've been reading all over that this Lenore Thompson person says that P types are right-brain dominant and J types are left-brain dominant. It seems like it would make sense because Js display things mostly linearly and Ps display things mostly holistically but it seems like it would be a lot more complicated than that.
This also doesn't jive with the theory that most people are right-brained, except for being linguistically left-brained (thus explaining why many people prefer the right side of their body to be dominant, because the left-brain is therefore less busy than the right brain and more able to accomodate physical tasks). I don't remember exactly where I heard this theory, but I remember it.
I'm curious what everyone else here makes of it.