Cells taken from people with a rare syndrome linked to autism could help explain the origins of the condition, scientists suggest.
The Stanford University team turned skin cells from people with "Timothy syndrome" into fully-fledged brain cells.
The abnormal activity found in these cells could be partially corrected using an experimental drug, Nature Medicine reports.
UK researchers warned the findings might not apply to everyone with autism.
Compared with the hundreds of thousands of people worldwide thought to show characteristics of autism, "Timothy syndrome" is vanishingly rare, affecting an estimated 20 people across the planet.
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more:
http://www.bbc.co.uk/news/health-15876364(Not a cure or a treatment, but adds to understanding.)