This new brain-mapping device could make neurosurgery safer
![This illustration shows how the thin film of sensors could be applied to the brain before surgery.](https://npr.brightspotcdn.com/dims3/default/strip/false/crop/833x625+83+0/resize/833x625!/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2F5e%2F65%2F20b2e66f4bcc9225fa171ec2e9ea%2Fimage-4.png)
A flexible film bristling with tiny sensors could make surgery safer for patients with a brain tumor or severe epilepsy.
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A flexible film bristling with tiny sensors could make surgery safer for patients with a brain tumor or severe epilepsy.