HOME >> BIOLOGY >> NEWS
Imaging study shows brain maturing

The brain's center of reasoning and problem solving is among the last to mature, a new study graphically reveals. The decade-long magnetic resonance imaging (MRI) study of normal brain development, from ages 4 to 21, by researchers at NIH's National Institute of Mental Health (NIMH) and University of California Los Angeles (UCLA) shows that such "higher-order" brain centers, such as the prefrontal cortex, don't fully develop until young adulthood.

A time-lapse 3-D movie that compresses 15 years of human brain maturation, ages 5 to 20, into seconds shows gray matter the working tissue of the brain's cortex diminishing in a back-to-front wave, likely reflecting the pruning of unused neuronal connections during the teen years. Cortex areas can be seen maturing at ages in which relevant cognitive and functional developmental milestones occur. The sequence of maturation also roughly parallels the evolution of the mammalian brain, suggest Drs. Nitin Gogtay, Judith Rapoport, NIMH, and Paul Thompson, Arthur Toga, UCLA, and colleagues, whose study is published online during the week of May 17, 2004 in The Proceedings of the National Academy of Sciences.

"To interpret brain changes we were seeing in neurodevelopmental disorders like schizophrenia, we needed a better picture of how the brain normally develops," explained Rapoport.

The researchers scanned the same 13 healthy children and teens every two years as they grew up, for 10 years. After co-registering the scans with each other, using an intricate set brain anatomical landmarks, they visualized the ebb and flow of gray matter neurons and their branch-like extensions in maps that, together, form the movie showing brain maturation from ages 5 to 20.

It was long believed that a spurt of overproduction of gray matter during the first 18 months of life was followed by a steady decline as unused circuitry is discarded. Then, in the late l990s, NIMH's Dr. Jay Giedd, a co-author of the cu
'"/>

Contact: Jules Asher
NIMHpress@nih.gov
301-443-4536
NIH/National Institute of Mental Health
17-May-2004


Page: 1 2

Related biology news :

1. Imaging the healing heart
2. Imaging the brain solving problems through insight
3. Imaging technique reveals new structure in retinal cells
4. Imaging technique discovered at Stanford monitors cancer cell proliferation
5. Imaging technique may help in confirming, monitoring treatment of malignant brain tumors
6. Imaging study provides new information on how the brain processes sounds of different tones
7. Imaging apparatus characterizes drops in dirty laboratory environments
8. New Imaging Technique Pinpoints Dead Heart Muscle
9. Imaging Studies Illuminate Brains Response To Cocaine
10. Student science contest participation influences study, career choices, alumni say
11. New study shows hope for treating inhalant abuse

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/6/2017)... MATEO, Calif. , March 6, 2017 /PRNewswire/ ... marketing and sales technology, today announced Predictive Sales ... solution for infusing actionable sales intelligence into Salesforce. ... to automatically enable their sales organizations with deep ... messages that allow for intelligent engagement. Predictive Sales ...
(Date:3/2/2017)... MELBOURNE, Australia , March 2, 2017 ... Therapeutics Ltd (ASX: CYP), has signed an agreement ... researchers from the Monash Biomedicine Discovery Institute and Department ... , to conduct a further preclinical study to support ... the treatment of asthma.  Asthma is ...
(Date:2/28/2017)... Spanien, 27. Februar 2017  EyeLock LLC, ein marktführendes ... seine erstklassige biometrische Lösung zur Iris-Erkennung auf ... X16 LTE auf dem Mobile World Congress ... Qualcomm-Stand in Halle 3, Stand 3E10, vorstellen. ... Sicherheitsplattform Qualcomm Haven™ – eine Kombination aus ...
Breaking Biology News(10 mins):
(Date:3/28/2017)... 28, 2017 Dr. Chris Yu ... corporation Anpac Bio-Medical Science Company , announced ... record, processing and reporting over 40,000 cases worldwide ... (CDA) liquid biopsy tests. Described ... Summit publications, Anpac Bio,s CDA medical devices and ...
(Date:3/28/2017)... ... March 28, 2017 , ... Currently symptomatic therapies for Parkinson’s ... study published in STEM CELLS suggests that human neural stem cell (hNSC) transplantation ... produce more neural cells. , Strategies involving transplantation of these cells into ...
(Date:3/28/2017)... 2017 /PRNewswire/ -RepliCel Life Sciences Inc. (OTCQB: REPCF) (TSXV: RP) ... safety and clinical data from its phase 1/2 tendon repair ... follicle-derived fibroblasts (RCT-01) as a treatment for Achilles tendinosis. ... The ... profile at 6 months and showed no serious adverse events ...
(Date:3/27/2017)... , March 27, 2017 Roka Bioscience, Inc. (NASDAQ: ... solutions for the detection of foodborne pathogens,  today announced that ... & Company Spring 2017 Convention on March 29 at 9:50am ... Marriott Marquis. About Roka Bioscience ... Roka Bioscience ...
Breaking Biology Technology:
Cached News: