HOME >> BIOLOGY >> NEWS
What a difference a decade makes

repeat a task several times and the results from the entire set of repetitions are averaged together to produce an image. Schlaggar, however, evaluated each repetition individually using an approach called event-related analysis. This technique minimizes the amount that head movements cloud the images, thereby making verbal responses feasible. With a verbal response, the researchers could analyze both reaction time and accuracy, and could ensure that the children and adults were in fact performing the task as instructed.

The researchers identified six subregions within the left frontal and extrastriate cortex in child and adult participants. These six regions four in the frontal cortex and two in the extrastriate cortex were examined more carefully to answer the most critical question: Are there differences due to brain maturation or are any of the differences simply the result of slower and less accurate performance by children?

To answer this key question, they divided the participants into two categories: The matched category contained performance data that was similar for both groups; the non-matched group contained data where adults and children clearly performed differently.

Of the six regions examined, two one in the frontal cortex, one in the extrastriate cortex revealed differences in brain activity in both the matched and unmatched groups, indicating an age-related effect rather than a performance-related effect. The extrastriate region was more active in children than adults, whereas the frontal region was active in adults and not in children.

According to Schlaggar, there are two important lessons from these results. First, children do appear to use their brains differently than adults when successfully performing identical language tasks. Second, although multiple regions appeared to be differentially active when comparing adults and children, many of those differences were due to performance discrepancies, not age-
'"/>

Contact: Joni Westerhouse
westerhousej@msnotes.wustl.edu
314-286-0120
Washington University School of Medicine
23-May-2002


Page: 1 2 3

Related biology news :

1. Genetic differences might help distinguish thyroid cancers
2. Study explains spatial orientation differences between sexes
3. Social benefits of wound healing may not make any difference in animals with multiple partners
4. Carnegie Mellon U. imaging study reveals sex-based differences that persist as mice enter adulthood
5. Sex-specific differences in gene expression related to drug metabolism and hypertension
6. Young chimpanzees show sex differences in learning
7. Can you tell the difference between Quarks and DNA?
8. Chimp vs. human DNA: whats in the 1% difference
9. Lifestyle accounts for difference in chimp, human genome
10. Gene differences may alter susceptibility to multiple sclerosis
11. NASA scientists discover spring thaw makes a difference

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


(Date:12/19/2018)... ROCHELLE, Va. (PRWEB) , ... December 19, 2018 , ... ... former Scientific Reviewer and Compliance Officer at the FDA Center for Devices and Radiological ... with NDA Partners as an Expert Consultant since 2015, and she has more than ...
(Date:12/18/2018)... ... December 18, 2018 , ... The nation’s leader in ... marketing. The technology has been effective at reducing patient acquisition costs by over ... with clients nationwide on patient acquisition marketing programs. Traditional marketing for stem cell ...
(Date:12/14/2018)... (PRWEB) , ... December 14, 2018 , ... ... patent number 9,703,929 entitled “Method and System for Microbiome-Derived Diagnostics and Therapeutics” by ... date of October 21, 2014. The patent is an invention by uBiome collaborators ...
Breaking Biology News(10 mins):
(Date:1/4/2019)... N.C. (PRWEB) , ... January 04, 2019 , ... ... is pleased to welcome Ted Hoffman to the firm. Ted will be joining ... of experience working in and providing consulting services to the pharmaceutical industry. At ...
(Date:12/20/2018)... ... December 20, 2018 , ... New Year’s brings reflection and desire to ... in the European Union (EU) on the horizon, Jim Kasic, president and CEO of ... to the EU Medical Device Regulation (MDR), digital health, and big data are just ...
(Date:12/18/2018)... ... December 18, 2018 , ... USDM Life Sciences, the ... sciences industry, unveiled a completely redesigned website at http://www.usdm.com . The site ... for their valued clients and business partners. , The website has a ...
(Date:12/13/2018)... (PRWEB) , ... December 12, 2018 , ... ... other life science software solutions, announces the Limfinity® ML (Machine Learning) addition for ... trained machine learning models within Limfinity® solutions. In the module, trained models make ...
Breaking Biology Technology:
Cached News: