Featured Research

from universities, journals, and other organizations

Brain Overgrowth In One-year-olds Linked To Development Of Autism, Study Says

Date:
December 10, 2007
Source:
American College of Neuropsychopharmacology
Summary:
Brain overgrowth in the latter part of an infant's first year may contribute to the onset of autistic characteristics, according to research. These findings support concurrent research which has found brain overgrowth in autistic children as young as 2 years old.

Brain overgrowth in the latter part of an infant's first year may contribute to the onset of autistic characteristics, according to new research. These findings support concurrent research which has found brain overgrowth in autistic children as young as two years old.

Lead researcher Joseph Piven, M.D., Director of the Neurodevelopmental Disorders Research Center at the University of North Carolina, Chapel Hill and an ACNP member, says that behavioral studies of infants at high risk for autism suggest that the onset of most behavioral symptoms which define the disorder, such as problems with and social interaction, also occur at about age one. "One reason these findings are important is because early post-natal onset raises the possibility that there may be a window for early treatment and prevention that could be identified by future studies," Piven says.

Autism, a pervasive developmental disorder characterized by severe deficits in social interaction and communication, is associated with a restricted range of activities and interests, as well as stereotyped repetitive behaviors such as lining up toys in a certain way or requiring basic routines.

In normal brain development, neuronal connections are eliminated through a process called "pruning." This process refines normal brain connections and increases the efficiency of remaining connections in the brain. Piven says one possibility is that there is less pruning in children with autism and therefore, their brains become larger than in children without autism.

Piven cautions that while the study seems to suggest a link between brain overgrowth and autism, there are many variants of autism among children, so the ways in which autistic children develop and are affected by brain growth can vary greatly.

Piven says he will continue to study brain development in autism through a study which is part of the new Autism Centers of Excellence funded by the National Institutes of Health. This study will examine more than 500 infant siblings of autistic individuals with magnetic resonance imaging at the University of North Carolina, Children's Hospital of Philadelphia, Washington University of St. Louis and the University of Washington in Seattle. Siblings of autistic children will be examined at 6, 12 and 24 months. Some of them are expected to develop autistic behavior during the course of the study.

Previous studies of both brain development on MRI and behavioral development have not been conducted in children this young, at risk for an autism spectrum disorder. This study will provide important new information on brain changes in infancy that are associated with the development of autistic symptoms.

This research was presented December 8, 2007 at the American College of Neuropsychopharmacology (ACNP) annual meeting.


Story Source:

The above story is based on materials provided by American College of Neuropsychopharmacology. Note: Materials may be edited for content and length.


Cite This Page:

American College of Neuropsychopharmacology. "Brain Overgrowth In One-year-olds Linked To Development Of Autism, Study Says." ScienceDaily. ScienceDaily, 10 December 2007. <www.sciencedaily.com/releases/2007/12/071208092451.htm>.
American College of Neuropsychopharmacology. (2007, December 10). Brain Overgrowth In One-year-olds Linked To Development Of Autism, Study Says. ScienceDaily. Retrieved September 29, 2014 from www.sciencedaily.com/releases/2007/12/071208092451.htm
American College of Neuropsychopharmacology. "Brain Overgrowth In One-year-olds Linked To Development Of Autism, Study Says." ScienceDaily. www.sciencedaily.com/releases/2007/12/071208092451.htm (accessed September 29, 2014).

Share This



More Mind & Brain News

Monday, September 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Your Spouse's Personality May Influence Your Earnings

Your Spouse's Personality May Influence Your Earnings

Newsy (Sep. 26, 2014) Research from Washington University suggest people with conscientious spouses have greater career success. Video provided by Newsy
Powered by NewsLook.com
Can A Blood Test Predict Psychosis Risk?

Can A Blood Test Predict Psychosis Risk?

Newsy (Sep. 26, 2014) Researchers say certain markers in the blood can predict risk of psychosis later in the life. The test can aid in early treatment for the condition. Video provided by Newsy
Powered by NewsLook.com
Harpist Soothes Gorillas, Orangutans With Music

Harpist Soothes Gorillas, Orangutans With Music

AP (Sep. 25, 2014) Teri Tacheny, a harpist, has a loyal following of fans who appreciate her soothing music. Every month, gorillas, orangutans and monkeys amble down to hear her play at the Como Park Zoo in Minnesota. (Sept. 25) Video provided by AP
Powered by NewsLook.com
Alzheimer's Researchers Watching Early Forgetfulness

Alzheimer's Researchers Watching Early Forgetfulness

Newsy (Sep. 25, 2014) This development gives scientists a chance to detect memory issues earlier, even if larger issues aren't showing on cognitive tests. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins