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Showing posts from January, 2011

Highly Sensitive Introverts

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Researchers say, introverts may actually process their world differently than
others, leading to differences in how they respond to stimuli.


About twenty percent of people are born with this "highly sensitive" trait, which may also manifest itself as inhibitedness, 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.

While such traits are relatively familiar because they are easy to observe, the researchers, have found evidence that for those with this innate trait, the actual underlying difference is in the brain's attention to details.

The study was conducted by Jadzia Jagiellowicz, Xiaomeng Xu, Arthur Aron, and Elaine Aron at Stony Brook University, along with Guikang Cao and Tingyong Feng of Southwest University, China and Xuchu Weng of the Chinese Academy of Sciences, Beijing, China.

The resear…

Introverts Brains Are Different

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Introverts At The Front, Extroverts To The Rear


A University of Iowa study adds to growing evidence that being shy or outgoing may be all in your head. Investigators looking at cerebral blood flow and personality found more conclusive signs of different brain activity in introverts and extroverts.

This is the first study to reveal the connections between activity of the thalamus and introversion and extroversion, said Debra L. Johnson, Ph.D., UI assistant research scientist in psychology and the study's lead investigator. "We found more evidence that people might be shy or outgoing because of the way their brains are structured, not because of experiences they've had."

Previous studies have shown that introversion and extroversion are based on variations in brain function, but those studies did not describe all the locations found in this study. The UI researchers examined 18 healthy individuals using positron emission tomography (PET) scans, which can provide a high…