Human brain electrodes capture the twilight zone

[image error]Sleep is a nightmare for neuroscientists but a new study using electrodes implanted deep within the brains of people going about their daily lives has revealed that the brain falls asleep from the inside out, contrary to what was expected.

Most neuropsychology studies require people to complete tasks while the brain is being monitored and the technologies that allow passive recording either only measure activity on the brain surface (EEG, MEG) or are too uncomfortable to measure realistic...