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:


(Date:2/8/2017)... , Feb. 7, 2017 Report Highlights ... The global synthetic-biology ... $11.4 billion by 2021, growing at a compound annual growth ... An overview of the global markets for synthetic biology. - ... for 2016, and projections of compound annual growth rates (CAGRs) ...
(Date:2/7/2017)... LONG BEACH, New York , February 7, 2017 ... formerly known as ID Global Solutions Corporation [OTC: IDGS], ... identification, identity management and electronic transaction processing services, is ... a reorganization of the Company. Effective January ... Chairman of the Board of Directors, CEO and President. ...
(Date:2/2/2017)... 2, 2017  EyeLock LLC, a market leader of ... paper " What You Should Know About Biometrics in ... user authenticity is a growing concern. In traditional schemes, ... However, traditional authentication schemes such as username/password suffer from ... authentication offers an elegant solution to the problem of ...
Breaking Biology News(10 mins):
(Date:2/21/2017)... PARK, CA (PRWEB) , ... February 21, 2017 ... ... of the VTX-1 Liquid Biopsy System , a fully automated benchtop system ... microfluidic technology. The VTX-1 is being launched at the Molecular Medicine Tri Conference ...
(Date:2/21/2017)... ... February 21, 2017 , ... VetStem Biopharma, Inc ... headquarters laboratory in Poway, California. Based upon 12 years of knowledge gained ... and consultants, VetStem constructed and validated a state-of-the-art GMP stem cell manufacturing plant. ...
(Date:2/21/2017)... BANGALORE , February 21, 2017 ... Appropriate Technology for Adoption by Plastic Industry  ... STEER, ... and functionalise materials in the fields of plastics, pharmaceuticals, ... collaboration with Merck, a leading science & technology company, ...
(Date:2/20/2017)... 20, 2017  This Report analyzes the worldwide markets for Bioinformatics ... report provides separate comprehensive analytics for the US, Canada ... , Asia-Pacific , Latin America ... report: http://www.reportlinker.com/p04707099-summary/view-report.html ... Annual estimates and forecasts are provided for the period ...
Breaking Biology Technology:
Cached News: