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And that is the science.

And that is to say physics, medicine, nature, or space, time, brain, life, the universe.

Hello, this week, optogenetics, how scientists are using light to control brain cells

and other tissues. It promises to deliver new treatments

for epilepsy and we'll be hearing how. Plus growing replacement organs in animals and

a computer program that has taught itself to diagnose skin

cancer better than a doctor. I'm Katani. I'm Chris Smith and you're listening to

The Naked Scientists. The Naked Scientists podcast is powered by UKfast.co.uk.

First this week engineers in America have developed a computer program that can train

itself to spot skin cancers in photos from a patient's skin and then in tests it does it as

successfully as a panel of trained skin specialists. Stanford PhD student Andre Estevar

invented it.

What we've done is to build a computer algorithm, like a computer program that can match the performance of board certified dermatologists at identifying whether or not an image of a skin

lesion is benign or malignant and we've tested it across three really

important medical diagnostic use cases, which include identifying carcinomas,

including basal and squamous cell carcinomas from their benign counterparts, as well as

identifying malignant melanoma from normal

ordinary moles. And you do this by showing the computer program images of these

...