‘Residual echo’ of ancient humans in scans may hold clues to mental disorders

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Researchers have produced the first direct evidence that parts of our brains implicated in mental disorders may be shaped by a ‘residual echo’ from Neanderthal DNA in our genomes. Evidence from MRI scans suggests that such ancient genetic variation may affect the way our brains work today — and may hold clues to understanding deficits seen in schizophrenia and autism-related disorders.

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