Washington D.C., May 25 -- : If an infant is less or unable to differentiate between varying speech patterns, he/she is likely to be at a higher risk of developing autism, suggested a new study.

The findings of the study were published in Brain and Language.

"Humans are born with an astonishing ability to distinguish basic sound units that make up all of the world's languages," says Kristina Denisova, the study author.

"But why some infants at high familial risk for autism spectrum disorder are less likely to develop their language-specific competence in toddlerhood has remained a mystery."

Previously, Denisova in her studies showed that high-risk infants (those who had a sibling with autism) were less likely to turn their heads in resp...