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:12/19/2014)... VIEW, Calif. , Dec. 18, 2014  23andMe, Inc., the ... study that pinpoints fine-scale differences in genetic ancestry of individuals ... Since immigrants first arrived more than four hundred years ... as a meeting place for peoples from different continents. This ...
(Date:12/17/2014)... FORT BELVOIR, Va. , Dec. 15, 2014 ... make it easier to detect and prevent counterfeit microcircuits ... the agency started performing an in-house microcircuit anti-counterfeit initiative ... of purchased microcircuits while increasing their reliability throughout the ...
(Date:12/17/2014)... , Dec. 16, 2014 Research and Markets ... "Global Chemical Sensor Market 2015-2019" report to ... One major trend upcoming in this market ... applications. Chemical sensors help in recording of patient data ...
Breaking Biology News(10 mins):23andMe Study Sketches Genetic Portrait of the United States 223andMe Study Sketches Genetic Portrait of the United States 323andMe Study Sketches Genetic Portrait of the United States 4Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2
(Date:1/22/2015)... PALO ALTO, Calif. , Jan. 22. 2015  Varian Medical ... equipment and software, has been honored for its commitment to ... most sustainable companies. Varian is the highest ranked healthcare equipment ... ranking, announced today during the World Economic Forum at ...
(Date:12/24/2014)... 2014  United Therapeutics Corporation (NASDAQ: UTHR ) ... ) has submitted a pre-market approval application to the ... of Medtronic,s SynchroMed ® II implantable drug infusion ... United Therapeutics, Remodulin ® (treprostinil) Injection delivered intravenously ...
(Date:12/24/2014)... 2014 “Preparative & Process Chromatography ... Consumables (Columns, Solvents, Buffers, Valves, Guages, Seals), Accessories, ... - Forecasts to 2019” provides a detailed overview ... market trends, and strategies impacting the preparative and ...
(Date:12/24/2014)... On Friday, December 19, 2014, President ... Continuing Resolution Appropriations Act of 2015, which for the ... funding through the Congressionally Directed Medical Research Programs (CDMRP) ... Association (HA), working in conjunction with its allies on ...
Breaking Biology Technology:Varian Honored Among World's 100 Most Sustainable Corporations 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 2Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 4Rare Brain Condition Now Eligible for Department of Defense Research Dollars 2
Cached News: