100 electrodes implanted directly into the motor cortex of a 24-year-old quadriplegic man allows him to control computer directly and hence play videogames and check email. Read the article in Nature . I would be interested in reading the explanation of the man on how he learnt to control the computer and how he feels in controlling it. The similar questions are: “how have you learnt to move your finger?” and “how do you feel when you move a finger?”. It is something it is difficult (or impossible?) to explain, it just seems natural. I may guess it is the same for the man and his brain control on the computer. Unluckly the article does not analyze this. (found via BoingBoing)