London: Children who develop autism already show signs of different brain responses in their first year of life, scientists said on Thursday in a study that may in the future help doctors diagnose the disorder earlier.British researchers studied 104 babies at 6 to 10 months and then again at 3-years-old, and found that those who went on to develop autism had unusual patterns of brain activity in response to eye contact with another person.The findings suggest direct brain measures might help predict the future risk of autism in babies as young as 6 months old, said Mark Johnson of Birkbeck at the University of London, who led the study.Autism, which affects around 1 percent of people worldwide, includes a spectrum of disorders ranging from mental retardation and a profound inability to communicate to relatively milder symptoms such as seen in people with Asperger`s syndrome.Among core features of condition are poor communication skills and difficulties with social engagement, and doctors are keen to find ways to diagnose the condition earlier so that they can intervene to help autistic children develop coping skills.Characteristic autistic behavior tends not to emerge before the age of 2 years and firm diagnoses are usually only made after this age."Because there are no good behavioral signs at this young age (under 1 year), we wanted to see whether, by measuring the activity of the brain in a more direct way, we might be able to pick up earlier warning signs," Johnson said in a telephone interview.
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