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  1. #1
    Listening Oaky's Avatar
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    Default The roots of Introvertedness and Extravertedness

    Whether MBTI has anything to do with genetics or not, I'm doubting I or E has anything to do with genes.
    So to help find the roots...
    Extraverts, why do you like to stay around people?
    Introverts, why do you not like to stay around people?
    I hope non will give any shallow answers such as "I like my privacy".
    I would just ask back "why do you like your privacy?". Try going deepest you can.

  2. #2
    Shaman BlackCat's Avatar
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    Introversion and extroversion are based in biology.

    I'm really not sure on any of the neurological terms, but people apparently have a tube or something that information that we perceive is processed in.

    When I say information, I mean anything, literally any sort of input to your brain.

    Introverts have a more narrow tube, meaning that the information we process is processed slower. The information goes through us a lot slower, resulting in us not gathering as much information at once but the information we do process is more understood more in depth since it goes through us in more time.

    Extroverts are the opposite, they have a wider tube. They can process a lot of information at once that they perceive, but it goes through faster, so they may have a less thorough understanding of it.

    So because of this, introverts will get tired from all of the work that our brains do to process information since I suppose it just takes more time and energy. Extroverts keep their brain energized by interacting and taking in new information somehow, I suppose because it doesn't tire them to process it, and the more that they perceive a certain kind of information the more of an understanding that they will have. This is why extroverts "think by talking" since, it takes more information flowing through them to come to more complete thoughts.

    Introverts get energized by reducing the amount of information we are taking in because it allows our brain to rest.

    This is at least what I've read. I haven't taken neurology or anything like that, I just read something on the internet about it and it seemed to make sense.
    () 9w8-3w4-7w6 tritype.

    sCueI (primary Inquisition)

  3. #3
    Phantonym
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    Quote Originally Posted by Ragingkatsuki View Post
    Introverts, why do you not like to stay around people?
    It's not that I don't like to stay around people when there's something interesting going on but after a while it starts to take up so much of my energy that I just have to get away to gather some. It's nothing personal most of the time but if I can't get away, I get really irritable and snappy. I do feel that it's an invasion of privacy but it's not about me not wanting to share myself, it's about me not wanting to share myself when it's expected or forced.

    When I'm around people for a longer period and there's no way to escape that by finding a peaceful corner somewhere I almost feel myself exiting my body and my mind wanders far away, with the sound of the conversation echoing from somewhere far away. Communication is a two way road and I'd feel very awkward and rude by sitting with people trying to talk with me and I'm looking like I'm having my teeth pulled. So, it's better for myself and for others not to stay around people at that particular time. After some time of energy gathering, I'm as good as new until the next time the battery is depleted.

    Edit: Yeah, what BlackCat said

  4. #4
    Senior Member Max's Avatar
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    Introversion: Paranoia, distrust, fear of being abandoned/rejected/left out/etc. Those were my reasons, at least.

    Extroversion: I find that with a location change and a change in the maturity of those around me, I would actually quite like dealing with people a lot.

  5. #5
    Listening Oaky's Avatar
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    @ Blackcat: I see. Very interesting. So it's how fast we process information. But why is it that our brains process information slower than the extraverts? What in the brain would allow someone to process faster than the next?

    @ Skyisblue: Yes it takes energy. We've found out it's because of the information processing. But what we haven't found out is why information is processed differently with different people. Try asking yourself why your energy leaves you when processing the information. Why are you slower at it then the extraverts?

  6. #6
    violaine
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    The initial post in this thread covered it nicely. In short, there is supposedly a biological basis for I and E related to differences in the level of arousal in the cerebral cortex. Introvert's cortex is more aroused and arousable than an Extrovert's. (<--- I am paraphrasing from something I read a while ago but can't remember the source.)

    I have always thought it is a nature and nurture kind of thing. Having an inborn tendency and then the degree to which you are I or E being shaped by environment.

  7. #7
    Senior Member Cybin's Avatar
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    There's a correlation (yes, we all know what that does or does not imply) between introversion and higher levels of brain activity in the prefrontal cortex.

    The forebrain is the part of the brain responsible for our ability to 'look inward' and think about thinking. It's also linked to our social inhibitions and decision making.

  8. #8
    Shaman BlackCat's Avatar
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    Quote Originally Posted by Ragingkatsuki View Post
    @ Blackcat: I see. Very interesting. So it's how fast we process information. But why is it that our brains process information slower than the extraverts? What in the brain would allow someone to process faster than the next?
    Maybe this would answer your question in some way? I'm not sure what in the brain would do that, but it's in the frontal lobe.

    The study examined a possible relationship between electrical activity recorded from the scalp and personality, especially extraversion–introversion, in a sample of 50 male and female volunteers. EEG activity was recorded from 19 electrodes while subjects opened and closed their eyes on instruction. The participants completed Cattell’s 16 Personality Factor questionnaire and from those results, second-order personality traits (extraversion–introversion, low anxiety–high anxiety, tough poise–tender mindedness, and subduedness–independence) were calculated. An association was only found between the extraversion–introversion and frontal EEG activity in the 8–13 Hz range. Results also showed that extraverts were at least 3 times more likely to have larger amplitude activity in this range. No significant associations were found in posterior regions of the brain.
    Source- ScienceDirect - Personality and Individual Differences : Extraversion&#x2013;introversion and 8&#x2013;13 Hz waves in frontal cortical regions

    But like I said, all that I know is that the path that introverts' information is taken through makes them process it slower. Look at it this way, look at this way... say that you have a quart of water. The introvert's "tube" is like a straw, the extroverts is maybe 1 inch in diameter. The introvert's water would go through the straw slower, so the information would be processed slower and more thoroughly. The extrovert's would flow much much faster, but they would process it faster and not get as much out of it, but that's made up for by just being able to amass a much larger amount of information from the environment, and if the same information goes through their head enough they will come to as much of an understanding as an introvert would have, but they would process all of it at once rather than doing less things at a time than an introvert.

    So it basically accomplishes the same thing, just in different ways.

    Also keep in mind all that I'm talking about is the process of taking in information, not on how much introverts introspect or whatever.
    () 9w8-3w4-7w6 tritype.

    sCueI (primary Inquisition)

  9. #9
    Listening Oaky's Avatar
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    @Sanveane: Ok, I see what your saying. I also read the initial post on the thread you hyperlinked. The post was mostly talking about the differences between the introverts and extraverts and surely it covers it quite beautifully. This does not fully help my point though. I'm looking for the ultimate root of it all. If it's inborn tendency and the shaping from your environment then where would the inborn tendency come from and would that mean someone can change it willingly if the environment can?

    @Cybin: Yes, what you said went a bit deeper to the physical source. It helped. Thanks for that.

    @BlackCat: I've understood about the processes of information taking from your previous post and your metaphor made a clear understanding of that point. I'm really interested in the information you've provided about the brain. It's in the frontal lobe and I know that if the frontal lobe is damaged socialization can increase or decrease (according to scientific research). This would mean that genes may not play a part in this as no matter how much one damaged oneself, his/her genes wouldn't change. Correct?
    NOW... Can we modify our frontal lobe ourselves instead of damaging it and hoping we win the lottery? This is what I'd like to know.

  10. #10
    Shaman BlackCat's Avatar
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    Quote Originally Posted by Ragingkatsuki View Post
    no matter how much one damaged oneself, his/her genes wouldn't change. Correct?
    NOW... Can we modify our frontal lobe ourselves instead of damaging it and hoping we win the lottery? This is what I'd like to know.
    Yep correct.

    It seems like in the future we will be able to make these modifications, but right now we haven't done those sorts of experiments or operations I'm guessing. Since who the hell would volunteer for that? But one of these days science will find a way...
    () 9w8-3w4-7w6 tritype.

    sCueI (primary Inquisition)

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