Three clinical trial participants with paralysis chatted with family and friends, shopped online and used other tablet computer applications, all by just thinking about pointing and clicking a mouse.

We all love working on our smartphones. However, if we carry a lightweight backpack, why not have a tablet that can get regular tasks as easily and efficiently as other mobile devices?

Writing an e-mail. Sending a text message. Surfing the internet. These are activities taken for granted by most, but denied to paralysed people who've lost the use of their arms and hands. The implant ...