The actual paper is here: http://www.nature.com/nature/journal/vaop/ncurrent/full/nature08860.html http://www.nature.com/nature/journal/vaop/ncurrent/full/natu

The actual paper is here: http://www.nature.com/nature/journal/vaop/ncurrent/full/nature08860.html http://www.nature.com/nature/journal/vaop/ncurrent/full/natu... I'm not convinced about the Reuters article's framing of things in terms of relaxedness - the paper doesn't seem to make any mention of emotional state. We don't fully understand what theta oscillations do, or why there are oscillations throughout the brain. We know they're more present during activities like navigation and learning, but there are other, slower oscillations that are usually more associated with meditation and states of relaxation than theta. This is an important finding though, because it throws more light on how oscillations relate to learning. Buzsaki's Rhythms of the Brain is a great though dense resource for learning about oscillations in the brain: http://www.amazon.com/Rhythms-Brain-Gyorgy-Buzsaki/dp/0195301064 http://www.amazon.com/Rhythms-Brain-Gyorgy-Buzsaki/dp/019530...