A parent-led intervention with their autistic child at a very young age is extremely beneficial in reducing the severity of the disease, according to a new study. Medical experts are calling it a new form of therapy in which healthy interaction with family members could improve social communication in young children with autism. The study published in Lancet, a medical journal, reveals that a year-long training program can help parents communicate with their very young autistic children and reduce symptoms of the disorder up to six years later. The research, led by the University of Manchester, King’s College London and Newcastle University, is the first to identify a long-term effect of an early intervention for autism. Autism is a complex disorder of brain development characterized, to varying degrees, by troubled social interactions, difficulty in communicating and repetitive actions or speech. It affects about one in 100 people. The findings — praised by outside experts as a “remarkably positive” and a “major contribution” to autism research — came as something of a surprise because the 2010 clinical trials they were based upon showed limited benefits at the time. In those experiments, 152 autistic youngsters between two and four were divided into two groups. Both groups received what was considered to be standard behavior treatment. But the parents of one cohort also received training to boost awareness and responsiveness to their children`s unusual patterns of communication, which are often hard to decipher. Techniques included having the parents watch videos of them interacting with their child while getting feedback from therapists. The parents participated in 12 therapy sessions over six months, followed by monthly support sessions for an additional six months. “Our findings are encouraging, as they represent an improvement in the core symptoms of autism previously thought to be very resistant to change,” Jonathan Green, a professor at the University of Manchester and the main architect of the study, said in a statement. “This is not a `cure`,” he cautioned. “But it does suggest that working with parents to interact with their children in this way can lead to improvements in symptoms over the long-term.” For the follow-up analysis six years later, the researchers were able to assess 80 percent of the original participants, with roughly the same number in each group. A series of standardized tests designed to measure autism severity showed that the group of kids whose parents had received sensitivity training scored significantly better.