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To explore these possibilities, the Defence Advanced Research Projects Agency (DARPA) has just awarded more than an estimated US$50 million in funding to eight teams looking into how electrical stimulation of the nervous system can help facilitate learning.

Sleeping for a third of a day has to have a purpose, if not, its not particularly advantageous to human evolution. Scientists have been studying sleep for decades and have come up with some answers. Here are 5 functions your brain carries out during sleep.

A team of neuroscientists at the University of Pennsylvania has shown for the first time that electrical stimulation delivered when memory is predicted to fail can improve memory function in the human brain. That same stimulation generally becomes disruptive when electrical pulses arrive during periods of effective memory function.