Scientists have developed a wearable tool that can identify anxiety and depression in young children, paving the way for early detection and treatment of such disorders.
Anxiety and depression are surprisingly common among young children -- as many as one in five kids suffer from one of them, starting as early as the preschool years.
However, it can be hard to detect these conditions, known as "internalising disorders," because the symptoms are so inward-facing that parents, teachers and doctors often fail to notice them.
If left untreated, children with internalising disorders are at greater risk of substance abuse and suicide later in life.
"Because of the scale of the problem, this begs for a screening technology to identify kids early enough so they can be directed to the care they need," said Ryan McGinnis, a biomedical engineer at the University of Vermont in the US.
Researchers develop a tool that could help screen children for internalising disorders to catch them early enough to be treated.
The team used a "mood induction task," a common research method designed to elicit specific behaviours and feelings such as anxiety.
The researchers tested 63 children, some of whom were known to have internalising disorders.
Children were led into a dimly lit room, while the facilitator gave scripted statements to build anticipation, such as "I have something to show you" and "Let's be quiet so it doesn't wake up."
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