Access

News

Nature Medicine 14, 797 (1 August 2008) | doi:10.1038/nm0808-797b

To know or not to know

Coco Ballantyne

A young, apparently healthy college student enrolls in a memory study at her university. Scientists using magnetic resonance imaging (MRI) technology to map the woman's brain activity stumble across something unexpected: a bright spot on the brain scan that looks like a tumor.