Okay, I'm going to go all BlueWing on you -- not with all these posts against F-ery, but rather post a long thing about a theory.
I remember what BlueWing said about 'passionate' versus 'intellectual' people, and then I found this when I was later looking up information about introversion versus extroversion:
Anyway. Does this look familiar?Brain differences
Eysenck proposed that extraversion was caused by variability in cortical arousal; "introverts are characterized by higher levels of activity than extraverts and so are chronically more cortically aroused than extraverts". Because extraverts are less aroused internally, they require more external stimulation than introverts. This theory may be backed up by evidence that the brains of extraverts are more responsive to dopamine than those of introverts. Other evidence of this ďstimulationĒ hypothesis is that introverts salivate more than extraverts in response to a drop of lemon juice.
One study found that introverts have more blood flow in the frontal lobes of their brain and the anterior or frontal thalamus, which are areas dealing with internal processing, such as planning and problem solving. Extraverts have more blood flow in the anterior cingulate gyrus, temporal lobes, and posterior thalamus, which are involved in sensory and emotional experience. This study and other research indicates that introversion-extraversion is related to individual differences in brain function.
In Myers Briggs, there are 8 proposed introverted types. Not all of them seem to fit the profile of the traditional introvert. The scale of extroversion and introversion is measured with two variables -- the amount of sensory stimulation one needs and the amount of time one needs to spend with other people.
Because of this, I propose that Myers-Briggs 'introversion' and 'extroversion' is definitely not the same as traditional introversion and extroversion -- which is misleading, considering how so many places define them and the questions used to figure out 'introversion' and 'extroversion' in the dichotomies tests.
The part of Myers-Briggs that weights most heavily towards introversion would be N, because of the need for so much less sensory data than S types. Here's how the breakdown seems to be, in order of most importance to least importance:
N versus S. S needs more sensory data, and will therefore seek it.
T versus F. F is explicitly related to people and will therefore seek them, whereas T is not. However, Fe weights towards extroversion much more than Fi.
I versus E. Whether an introverted function or an extroverted function dominates colors the person's worldview and would push them towards either extroversion or introversion.
P versus J. Carries the least weight, but somebody with an extroverted judging function in the first two slots will need to exert more influence over their world and will seek out more cooperation than someone with an introverted judging function.
So, according to this, this would put ESFJs (or at least ESFs) at the very top of the extroversion scale, an INTPs (or at least INTs) at the very bottom. Here's a list of how the extroversion-to-introversion scale would go, I estimate, from most extroverted to most introverted.
It's a bit more mixed than BlueWing's list, but who knows, this is just a guess. He may have meant something completely different. This list isn't to say that those at the very bottom cannot act extroverted and the ones at the top cannot be forced into introversion, but this is a basic scale. Feel free to suggest adjustments.
So, because of this scale, being an 'introvert' or an 'extrovert' in terms of Meyers Briggs only has a little influence on whether you're considered an 'introvert' or 'extrovert' by society. Because of this, I would believe the statistics that say, according to Myers Briggs, introverts are the majority, while a lot of other non-Myers Briggs statistics say that extroverts outnumber introverts two to one.