HOME >> BIOLOGY >> NEWS
All sides are not created equal as babies process speech

CHICAGO For the first time, researchers have used functional magnetic resonance imaging (fMRI) to investigate infant brain activity in response to speech and have found that, almost from birth, the brain's left hemisphere plays the leading role in processing most language functions. These preliminary findings, presented today at the 89th Scientific Assembly and Annual Meeting of the Radiological Society of North America (RSNA), challenge the previously held belief that left-hemisphere dominance isn't fully developed until puberty.

"Language lateralization seems to be established almost from birth," said Shantanu Sinha, Ph.D., associate professor of radiology at the David Geffen School of Medicine at University of California Los Angeles, where the study is ongoing. Lateralization is the localization of a function, such as speech, to the right or left side of the brain.

"To the best of our knowledge, this is the first time fMRI has been used to study infants," Dr. Sinha said. "Using fMRI, we can noninvasively study the neuronal response of newborns to stimulation of different kinds, without any ionizing radiation or pharmaceutical injections."

As part of a larger, longitudinal study monitoring the cognitive development of infants with brain injury from birth to age 2, the researchers performed fMRI exams on 42 infants with documented brain injury. The fMRI analysis only included cases where both sides of the brain were equally capable of developing and excluded children with brain trauma that was evident on the MR images.

The infants were not sedated, but were asleep during the procedure. During fMRI, the infants listened through headphones to tapes consisting of scanner noise, nonsense speech and "motherese" speech. While the experiments were not sensitive enough to establish whether the infant brains were able to distinguish between the two types of speech, definite left-hemisphere-dominant activation patterns were apparent during
'"/>

Contact: Maureen Morley
mmorley@rsna.org
630-590-7754
Radiological Society of North America
2-Dec-2003


Page: 1 2

Related biology news :

1. UC Riversides Derek Roff says global warming may threaten endangered species
2. Roadsides may provide butterfly corridors
3. USGS To Study Young Forests And Streamsides In Western Oregon
4. Roadsides Benefit From Waste, UF Researchers Say
5. Super-effective jumping gene created
6. 22-amino acid bacterium created by Scripps scientists
7. Artificial prions created
8. Mouse embryonic germ cells and male gametes created in the lab
9. Couch potatoes may be created in the womb, not at the dinner table
10. The fixed hotspot that created Hawaii was not stationary after all, study finds
11. All species are not created equal when assessing the impacts of species loss on ecosystems

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: All sides are not created equal babies process speech

(Date:10/17/2014)... the University of Copenhagen have shown for the first ... of Cystic fibrosis patients, giving them the opportunity to ... chronic infections. , The study also discovered the bacterial ... patients was halted or slowed down by the immune ... the oxygen and helped "suffocate" the bacteria, forcing the ...
(Date:10/16/2014)... Virginia Institute of Marine Science have received a ... to identify the streams and wetlands most vulnerable ... help local governments and citizens conserve these important ... dataset of tidal-marsh observations first gathered by VIMS ... baseline can today,s researchers accurately map the slow ...
(Date:10/16/2014)... cultivated efficiently, they are anything but sustainable: environmental ... cultivation is becoming increasingly evident. Despite their disadvantages, ... are regarded as the sole possibility of achieving ... finds Bernhard Schmid, an ecology professor at the ... of agriculture and forestry. After all, a new ...
Breaking Biology News(10 mins):Scientists opens black box on bacterial growth in cystic fibrosis lung infection 2EPA grant will help localities conserve headwater wetlands 2EPA grant will help localities conserve headwater wetlands 3Plant communities produce greater yield than monocultures 2Plant communities produce greater yield than monocultures 3
(Date:10/20/2014)... 2014 , A major pan-European ... the delivery of care has revealed changing trends in ... in the provision of healthcare services across the continent. ... United European Gastroenterology (UEG), have been announced today and ... of the burden of GI disorders across ...
(Date:10/20/2014)... PLAINSBORO, N.J. (PRWEB) October 20, 2014 ... that the Sidney Kimmel Cancer Center at Thomas ... program. , Through the Strategic Alliance Partnership ... and OncLive will collaborate to raise awareness of ... cancer treatment, and other projects. Clinicians and other ...
(Date:10/19/2014)... The Latin American hardware encryption display market ... with analysis and forecast of revenue. This market was ... to reach $2,366.8 million by 2018, at a CAGR ... the TOC of the Latin American hardware encryption market ... provided. It also provides a glimpse of the segmentation ...
(Date:10/19/2014)... The Asia-Pacific Bromine Market report defines and ... and forecast of revenue. , Browse through the ... to get an idea of the in-depth analysis ... segmentation in the Asia-Pacific bromine market, and is ... http://www.micromarketmonitor.com/market/asia-pacific-bromine-6741503144.html , Bromine is a volatile ...
Breaking Biology Technology:Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 2Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 3Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 4Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 5Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 3The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 2The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 3The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 3
Cached News: