Facebook and Elon Musk are among those interested in the potential use of brain probes to read minds and enhance human capabilities.

Jane Wakefield looks at the technology of inserting electronic implants into the brain, and the ethical implications. Dr Ali Rezai of the Rockefeller Neuroscience Institute uses the probes to treat people with conditions such as epilepsy and drug addiction, but fears where commercialisation of the technology could lead.

Jane also speaks to bioethicist Dr Sarah Chan of the UK’s Royal Society; and with Noel Sharkey, professor of artificial intelligence at the University of Sheffield.

(Picture: MRI scan of a patient treated with a deep brain stimulation implant at Grenoble University Hospital in France; Credit: BSIP/UIG Via Getty Images)