US scientists have mapped a key network of gene "switches" in the brain which could aid neurological research.
These gene regulators govern whether parts of the brain develop properly.
The "atlas", created by researchers at the Dana-Farber Cancer Institute in Boston and detailed in Science used mouse brains to pinpoint the genes.
But the map applies to human brains too, and is hoped it will help research into conditions, such as brain tumours, linked to mutations in these genes.
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