Born shy, always shy? Temperamental differences may last throughout life, brain study suggests

Whether a person avoids novelty or embraces it may depend in part on brain differences that have existed from infancy, new findings suggest.

When shown pictures of unfamiliar faces, adults who were shy toddlers showed a relatively high level of activity in a part of the brain called the amygdala. Adults who were more outgoing toddlers showed less activity in this brain structure, which is related to emotion and novelty. The findings appear in the journal Science, published by the American Association for the Advancement of Science (AAAS).

Scientists have long been interested in finding explanations for differences in temperament, the stable moods and behavior profiles that emerge in infancy and early childhood. One of the most well studied facets of temperament is how people respond to novelty.

Inhibited children tend to be timid with new people, objects, and situations, while uninhibited children spontaneously approach them.

"Now we're suggesting that that same link continues through life," said lead author Carl Schwartz of Massachusetts General Hospital and Harvard Medical School.

"We found that individual differences in temperament are associated with persistent differences in the responsivity of the amygdala, after more than 20 years of development and life experience," he said.

The Science study is the latest chapter in a long-term study of child development. Jerome Kagan of Harvard University (also a co-author on the current study) and colleagues initially categorized a large group of children, around age two, as inhibited or uninhibited. Schwartz's team then studied the children's behavior again, around age 13. Now, approximately nine years later, Schwartz and his colleagues have compared their test subjects' brain activity, using fMRI scans to monitor a subset of 22 individuals, around age 21.

While the authors assumed that the brain differences they found at age 21 would have also exis

Contact: Ginger Pinholster
American Association for the Advancement of Science

Page: 1 2 3

Related biology news :

1. Once a renin cell, always a renin cell
2. Bigger isnt always better--especially if youre a rodent
3. Dont always believe what you see, suggests study on false memories
4. Fish is not always brain food
5. One fig, one wasp? Not always!
6. Research shows less income, education not always top factors in child obesity
7. Increasing biodiversity is not always best
8. Men are faster than women. but does that mean bets should always be placed on colts?
9. Brain damage in infants not always tied to delivery
10. Big fish not always best, sounds might mean hurricanes and Hawaii tsunami safety
11. Plant stems and leaves are always proportional to roots

Post Your Comments:

(Date:5/23/2017)... first robotic gym for the rehabilitation and functional motor sense evaluation of ... Italy . The first 30 robots will be available from June ... . The technology was developed and patented at the IIT laboratories and ... thanks to a 10 million euro investment from entrepreneur Sergio Dompè. ... ...
(Date:4/24/2017)... , April 24, 2017 ... and partner with  Identity Strategy Partners, LLP (IdSP) ... "With or without President Trump,s March 6, 2017 ... Terrorist Entry , refugee vetting can be instilled with ... resettlement. (Right now, all refugee applications are suspended ...
(Date:4/13/2017)... , April 13, 2017 UBM,s Advanced ... will feature emerging and evolving technology through ... Innovation Summits will run alongside the expo portion of ... sessions, panels and demonstrations focused on trending topics within ... advanced design and manufacturing event will take place June ...
Breaking Biology News(10 mins):
(Date:10/7/2017)... ... October 06, 2017 , ... ... instruments and applications consulting for microscopy and surface analysis, Nanoscience Instruments is ... Nanoscience Analytical offers a broad range of contract analysis services for advanced ...
(Date:10/7/2017)... Mass. , Oct. 6, 2017  The ... work of three scientists, Jacques Dubochet, Joachim ... breakthrough developments in cryo-electron microscopy (cryo-EM) ... technology within the structural biology community. The winners ... Scientists can now routinely produce highly resolved, three-dimensional ...
(Date:10/6/2017)... ... October 06, 2017 , ... ... lunch discussion and webinar on INSIGhT, the first-ever adaptive clinical trial for glioblastoma ... Cancer Institute. The event is free and open to the public, but registration ...
(Date:10/5/2017)... , ... October 05, 2017 , ... Understanding the microbiome, ... frontiers in human health. Gut Love: You Are My Future, the newest exhibit on ... perspective as it explores the human condition through the lens of the gut microbiome. ...
Breaking Biology Technology:
Cached News: