OK, I got my Lenore Thomson back from my sister who stole it (she steals all my books). :steam:
What do you think of this, Jack?
"One of the more interesting results of research into psychological types is the finding that each function operates in different area of the brain. Each type not only activates a distinct set of neurological sites but also favors one side of the brain over the other.
Most of this research has been done with positron-emission tomography, or PET scanning, which allows technicians to see the brain at work. When the brain's nerve cells are active, the body produces enough glucose to support them. Researchers can tell from this increase in glucose which parts of the brains are working hardest when different functions are being used.
Even the simplest of human skills, of course, requires complex neural connections in many areas of the brain. To speak of a function's locus of activity is an extreme generalization. Roughly speaking, however, PET technology indicates that our functional capacities are distributed as follows:
Front of Left Brain
Te
Fe
Back of Left Brain
Si
Ni
Front of Right Brain
Ne
Se
Back of Right Brain
Fi
Ti
The Introverted Functions and Brain Hemisphere
One of the most useful findings of current type research is the surprising fact that Introverted and Extraverted versions of the same functions activate on opposite sides of the brain.
Extraverted Thinking and Extraverted Feeling activate more areas in the left brain, but Introverted Thinking and Introverted Feeling activate more areas in the right brain.
Extraverted Sensation and Extraverted Intuition activate more areas in the right brain, but Introverted Sensation and Introverted Intuition activate more areas in the left brain.
This information is useful for several reasons. for one thing. it makes clear that each function can operate in a right or left brain manner. For another, it suggests that our dominant and secondary functions are compatible because their primary activity takes place in the same brain hemisphere. Indeed, we may resist our less-developed functions, in par, because they require us to process information in an unaccustomed left or right-brain way."
Like a right-handed person trying to write with his left-hand.
This makes shed-loads of sense to me.
It also helps to explain why we tend to see the dominance patterns that we do, and not just random patterns which we would expect if there were no such locus (e.g how many people are Fe/Ne or Fi/Ni dom? - too much 'context-switching'. How many people are Te/Fe? - that part of your brain gets specialized to one thing or the other and the other ends up weaker to the extent that you differentiate).
There are type-related things which he admits to not being certain about (e.g. whether functions are innate), but he doesn't seem to think it's important either.
