Study Sheds Light on What Makes People Shy

Anakind

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http://www.livescience.com/6291-study-sheds-light-people-shy.html


Study Sheds Light on What Makes People Shy
by Live Science Staff   |   April 06, 2010 03:08am ET


Highly sensitive individuals show greater brain activation in visual attention areas of the brain when making judgments of subtle changes in scenes.

Credit: Stony Brook University


The brains of shy or introverted individuals might actually process the world differently than their more extroverted counterparts, a new study suggests.

About 20 percent of people are born with a personality trait called sensory perception sensitivity (SPS) that can manifest itself as the tendency to be inhibited, or even neuroticism. The trait can be seen in some children who are "slow to warm up" in a situation but eventually join in, need little punishment, cry easily, ask unusual questions or have especially deep thoughts, the study researchers say.

The new results show that these highly sensitive individuals also pay more attention to detail, and have more activity in certain regions of their brains when trying to process visual information than those who are not classified as highly sensitive.

The study was conducted by researchers at Stony Brook University in New York, and Southwest University and the Chinese Academy of Sciences, both in China. The results were published March 4 in the journal Social Cognitive and Affective Neuroscience.

The sensitive type

Individuals with this highly sensitive trait prefer to take longer to make decisions, are more conscientious, need more time to themselves in order to reflect, and are more easily bored with small talk, research suggests.

Previous work has also shown that compared with others those with a highly sensitive temperament are more bothered by noise and crowds, more affected by caffeine, and more easily startled. That is, the trait seems to confer sensitivity all around.
The researchers in the current study propose the simple sensory sensitivity to noise, pain, or caffeine is a side effect of an inborn preference to pay more attention to experiences.

They first used an established questionnaire to separate the sensitive from the non-sensitive participants. Then, the 16 participants compared a photograph of a visual scene with a preceding scene, indicating whether or not the scene had changed. Scenes differed in whether the changes were obvious or subtle, and in how quickly they were presented. Meanwhile, the researchers scanned each participant's brain with functional magnetic resonance imaging (fMRI).

Sensitive persons looked at the scenes with subtle differences for a longer time than did non-sensitive persons, and showed significantly greater activation in brain areas involved in associating visual input with other input to the brain and with visual attention. These brain areas are not simply used for vision itself, but for a deeper processing of input.

Role in evolution

The sensitivity trait is found in over 100 other species, from fruit flies and fish to canines and primates, indicating this personality type could sometimes provide an evolutionary advantage.

Biologists are beginning to agree that within one species there can be two equally successful "personalities." The sensitive type, always a minority, chooses to observe longer before acting, as if doing their exploring with their brains rather than their limbs. The other type "boldly goes where no one has gone before," the scientists say.

The sensitive individual's strategy is not so advantageous when resources are plentiful or quick, aggressive action is required. But it comes in handy when danger is present, opportunities are similar and hard to choose between, or a clever approach is needed.
 

Anakind

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The Masked Magician said:
This is very unsettling. Especially the caffeine part.

:suicide:
I feel so much better without coffee. But it's hard to refrain from it b/c the simple act of drinking it is so hard-wired in the brain.
 
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Anakind said:
The Masked Magician said:
This is very unsettling. Especially the caffeine part.

:suicide:
I feel so much better without coffee. But it's hard to refrain from it b/c the simple act of drinking it is so hard-wired in the brain.
I rarely drink it because I start to sweat in the armpits (bad when you work in an office) and get jittery after drinking even a cup of normal coffee. And it's not about tolerance.
 

Jawanomics

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These are the types that avoid confrontation...don't go over the trenches first in war etc.
 

Nizoral Babe

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Anakind said:
The Masked Magician said:
This is very unsettling. Especially the caffeine part.

:suicide:
I feel so much better without coffee. But it's hard to refrain from it b/c the simple act of drinking it is so hard-wired in the brain.
Fucking same here. I've been addicted to caffeine since I was a child. There was always cases of soda in my house and at one point coffee was a regular drink for me in the mornings. But I recently stopped drinking caffeine and I feel much better. I have tremendous urges to intake some caffeine daily, I'm guessing the same urges one would have if they stopped smoking. Headaches are common during or after these urges.
 

BlueBalls

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Yeah this would be me, very sensitive to noise and crowds.

Jeez, I wish I could change my personality
 

igesio

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before i read im assuming it's going to be ugliness
[hr]
nvm
 

RealRob

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Im addicted to caffeine for sure, take around 600mg a day, some times 800. When I dont take it, I get headache and just feel slow and low energy.

I need to cut it out, but its pretty damn hard lol
 
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