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autism alert - latest news
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Tuesday, 31 January 2012
Measuring how a baby's brain reacts to shifts in eye contact might help predict the development of autism symptoms from as young as six months, a new international study has found.
'Early diagnosis and intervention can secure the best possible outcome for individuals with autism spectrum disorders (ASD),' says La Trobe University psychologist Dr Kristelle Hudry, one of the key researchers on the study released today.
The results of the study, Infant neural sensitivity to dynamic eye gaze is associated with later emerging autism, have been published in the January 26th issue of the journal Current Biology.
'These results also open up new avenues for scientists to carry out further research to help us better understand ASD,' adds Dr Hudry, a researcher at La Trobe's Olga Tennison Autism Research Centre on the Melbourne campus.
While behaviours characteristic of autism emerge over the first few years of life, a firm diagnosis using existing methods can usually only be made after the age of two. But in reality, Dr Hudry explains, diagnosis often doesn't happen until much later. As a result, most autism research has concentrated on children older than two years, which means we still know very little about the very earliest symptoms and signs.
To address this, La Trobe's Olga Tennison Autism Research Centre has opened an Early Diagnostic Clinic with the support of the RE Ross Trust.
About the study
Dr Hudry and her British colleagues studied six- to ten-month-old babies who were at risk of developing autism because they had a sibling with the condition.
The researchers placed sensors on the babies' scalps to register their brain activity while they viewed videos of faces that switched from looking at them to looking away, or vice versa.
Releasing the study's report in the UK yesterday, Chief Investigator Professor Mark Johnson from Birkbeck College at the University of London, said:
'Our findings demonstrate for the first time that direct measures of brain functioning during the first year of life associate with a later diagnosis of autism - well before the emergence of behavioural symptoms'.
Professor Johnson explains that the human brain shows characteristic patterns of activity in response to eye contact with other people, and it is well known that older children diagnosed with autism have unusual patterns of eye contact and atypical brain responses to social interactions with others.
'The new study reveals that the brains of young infants who will go on to develop autism already process social information in a different way,' Professor Johnson said 'At this age, no behavioural signs of autism are yet evident, and so measurements of brain function may be a more sensitive indicator of risk.'
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To help ensure the continuity of the Olga Tennison Autism Research Centre's research activities, click the button above and you will be directed to La Trobe Univeristy's secure online payment system.
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The Early Start Denver Model (ESDM) is a comprehensive early intervention model developed to target the core deficits seen in toddlers and preschoolers with Autism: social orientation, attention, affect sharing and attunement, imitation, joint attention, language development, and functional and symbolic play.
The workshop will be presented by Dr Cynthia Zierhut, certified parent and professional trainer in the ESDM. Dr Zierhut is the only person currently holding this certification in Australia.
Register now |
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However, he added that the method would need to be further refined before forming the basis of a predictor accurate enough for clinical use.
The study involved researchers at the University of London, Kings College London, and the University of Cambridge in the UK, McGill University in Canada, and the Olga Tennison Autism Research Centre (OTARC) at La Trobe University, Australia. It was funded by the UK Medical Research Council and the BASIS funding consortium led by Autistica.
About Dr Hudry
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Dr Hudry at the Autism Specific Early Learning Centre at La Trobe University.
Picture by Tess Flynn. |
A lecturer in developmental psychology, Dr Hudry specialises in ASD in infants and toddlers. She is particularly interested in their language and communication development, and in patterns of interaction between parents and their young children.
Dr Hudry returned to Australia recently after five years in London, working in this area of research. She maintains close research links with Britain's Preschool Autism Communication Trial team, who published the results of a landmark early intervention trial in 2010, and with the British Autism Study of Infant Siblings team who are behind the current findings.
Dr Hudry is now undertaking a similar study in Australia, looking at the early development of infants at high-risk for autism, based on having an older sibling with a diagnosis. The project is a collaboration between La Trobe's Olga Tennison Centre and Swinburne University's Babylab.
For interviews or further information about this study please contact Dr Hudry on
T: (03) 9479 5649 E: k.hudry@latrobe.edu.au or
Ernest Raetz, Media and Communications,
T: 041 226 1919 E: e.raetz@latrobe.edu.au.
Further background: www.latrobe.edu.au/otarc | basisnetwork.org |
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