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www.lenafoundation.org / Issue 21, December 2009

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Featured Expert
Positive Peer Pressure

Using LENA Pro to Compare the Impact of Mother-Infant and Peer Infant-Infant Interactions on Infant Volubility


Much research has been completed on infant volubility; however, limited research has been conducted on the volubility of five-month-old infants in varied interactive contexts. One could posit that lingering technological constraints have hindered such focused investigations; historically, communications researchers have had to rely on cumbersome floor microphones and other bulky electronic equipment when attempting to capture the dynamics of infant interactions.

Therefore, as a graduate student in the communications sciences department at Valdosta State University, I was excited to learn of the LENA Pro system. Using a lightweight, iPod-sized digital language processor positioned at a child's chest level in specially designed clothing, researchers now have the ability to unobtrusively gather and automatically process and analyze many hours of recording data. Once I realized the implications such a device could have on current and future communications research at Valdosta it was easy for me to convince my department to invest in LENA Pro.

With LENA I had a new research opportunity. I knew that a considerable amount of research had been done on the effect a mother has on her infant and the vocalizations the infant produces; and I knew that some research had been completed on the effect that peer infants have on an infant and the vocalizations the infant produces. Nevertheless, very little research had been done comparing the two types of interaction. As a result, I set out to study three 5-month-old infants with their mothers and then with each other as peer infants to figure out which environment produced more volubility.

Several characteristics of the LENA Pro system aided me in my pursuit. Foremost, the portability and versatility of the system greatly facilitated my ability to study infants. There was no need to set up, monitor, and disassemble unwieldy equipment or spend hours transcribing recordings or deciphering notes. Moreover, LENA Pro time-stamped all of the data and organized the data into specific categories, making it easy to pinpoint the utterances and vocalizations of all three study participants. However, I did face one challenge. After exporting LENA data to Microsoft Excel, I had trouble finding the data I needed on "Other Child" vocalizations. Fortunately, the foundation support team helped me navigate the Excel application and utilize special Excel formulas to obtain the information.

Ultimately, I discovered several things about infant volubility that surprised me. Like a mother's interactions with her infant, peer infant interactions with an infant may produce a great deal of infant volubility. When I averaged all of the infant manual volubility counts together for both contexts, the data revealed that 47 percent of the infant volubility was with the mother and that 53 percent of the infant volubility was with the peer infants. In addition, I learned that infant vocalizations are not just happy sounds but also upset or angry vocalizations that sound similar to cries.

I am quite pleased with these results—results that I might not have reached without LENA Pro and the wonderful support team at the LENA Foundation.

Leah A. Yates
Leah A. Yates is a graduate student in the communications sciences department at Valdosta State University in Valdosta, Georgia.
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Papers + Research


Browse through our current papers and presentations

The UC Davis M.I.N.D. Institute's Distinguished Lecturer Series is a forum for nationally and internationally renowned researchers to present their findings and insights on neurodevelopmental disorders. Recently, LENA Foundation Scientific Advisory Board member Steven F. Warren, Ph.D., had the honor of contributing with "Automatically Mapping the Language Learning Environment of Young Children with Autism: Implications for Assessment and Intervention." In addition to explaining the cumulative effects hypothesis and importance of maternal responsivity in early childhood development, the University of Kansas professor of human development and family life provides an overview of the LENA System, LENA studies, and applications of LENA technology for children with autism.

Dr. Warren's paper "What Automated Vocal Analysis Reveals About the Vocal Production and Language Learning Environment of Young Children with Autism" has been published in the Journal of Autism and Developmental Disorders (JADD).

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News

Babies May Pick Up Language Cues In Womb
By Nell Greenfieldboyce


A new study reveals that the melody of a newborn's cries seems to be influenced by the sound of the parents' native tongue. The findings suggest that crying infants may be imitating the patterns of the language they heard before they were born.
Listen to story

A Powerful Identity, a Vanishing Diagnosis
By Claudia Wallis


It is one of the most intriguing labels in psychiatry. Children with Asperger's syndrome, a mild form of autism, are socially awkward and often physically clumsy, but many are verbal prodigies, speaking in complex sentences at early ages, reading newspapers fluently by age 5 or 6 and acquiring expertise in some preferred topic — stegosaurs, clipper ships, Interstate highways — that will astonish adults and bore their playmates to tears.
Read more

Baby Einstein boasts prove not so smart for Disney
By Fionola Meredith


WHEN Baby Einstein videos were launched in 1997, they were sold as powerful brain-boosters for babies, combining "visual and linguistic experiences that facilitate the development of the brain" and "contributing to brain capacity". It seemed that all you had to do was sit your baby down in front of Baby Einstein, with its bright, colourful patterns and synthesizer versions of Mozart classics, and hey presto, you'd soon have a tiny prodigy on your hands.
Read more

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Testimonial

"I was introduced to the LENA System in the fall of 2009 at the Division for Early Childhood (DEC) conference. After speaking with the LENA team at the event, I realized the system would be a 'godsend' for gathering data for my dissertation. I explained LENA to my dissertation chair and committee, and they approved the use of the system. I am currently conducting my pilot study and will begin work on my dissertation in January 2010. The data analysis features of the LENA Pro system, particularly the word and vocalization count and conversational turns features, have been saving me hours of analysis time."

- Judith Anne Lakawicz Losh (right), lecturer on birth-kindergarten education at the University of North Carolina at Pembroke
Judith Anne Lakawicz Losh
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Events
Shows and Events

See a complete list of conferences, presentations, and events where you can find us.


Where we'll be in 2009 - 2010

University of Minnesota
Location: 325 Education Sciences Building, Twin Cities Campus
Date: December 4, 2009

The University of Minnesota will be hosting the LENA Foundation for a special half-day series of presentations and discussions on the LENA System. For more information contact Sara Zettervall at sarazet@umn.edu or 612-625-2252.


2010 ABAI Autism Conference
Location: Chicago, Illinois
Date: January 22–24, 2010

At the 2010 ABAI Autism Conference, experts will present data on autism and participate in panel and Q & A sessions.


XVIIth Biennial International Conference on Infant Studies
Location: Baltimore, Maryland
Date: March 10–14, 2010

The International Society on Infant Studies (ISIS) presents the Biennial International Conference on Infant Studies as an opportunity for researchers and practitioners to congregate and discuss new research and theory in the field of infant development.


43rd Annual Gatlinburg Conference on Research & Theory in Intellectual & Developmental Disabilities
Location: Annapolis, Maryland
Date: March 17-19, 2010

The Gatlinburg Conference is one of the leading conferences in the country for behavioral scientists engaged in research in intellectual and related developmental disabilities. This year's theme is "Fragile X Syndrome: Frontiers of Behavior and Biology."


First LENA Users Conference
Location: Denver, Colorado
Date: April 25-27, 2010

This spring, experts in fields ranging from audiology and speech-language pathology to child psychology and pediatrics will gather in the Mile High City for the First LENA Users Conference. The forum will enable researchers to share their findings and offer an opportunity for those new to the LENA System to learn more about the technology.


9th Annual International Meeting for Autism Research (IMFAR)
Location: Philadelphia, Pennsylvania
Date: May 20–22, 2010

IMFAR 2010 is an opportunity for autism spectrum disorders (AS) researchers to discuss new advancements in the scientific investigation of ASD.


AG Bell 2010 Biennial Convention
Location: Orlando, Florida
Date: June 25–28, 2010

The AG Bell conference not only provides information on hearing health and technology but also presentations on the latest research in hearing loss.

Thanks!

Click here to watch the LENA demo

This eNewsletter exists to connect the community of parents, professionals, and researchers who are interested in child development and language acquisition.

Sincerely,

The LENA Team

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LENA Foundation is the creator of the LENA™ System. The system will help you to collect and assess the natural language environment of children. For more information, visit www.lenafoundation.org or www.lenababy.com.
To purchase the LENA System, call 866-503-9918.
LENA Foundation 5525 Central Avenue, Suite 100, Boulder, CO 80301-2820

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