Early birds may get the best worms—or at least the best garage sale deals—but they also tire out more quickly than night owls do. In a new study researchers Christina Schmidt and Philippe Peigneux, both at the University of Liège in Belgium, and their colleagues first asked 16 extreme early risers and 15 extreme night owls to spend a week following their natural sleep schedule. Then subjects spent two nights in a sleep lab, where they again followed their preferred sleep patterns and underwent cognitive testing twice daily while in a functional MRI scanner.
An hour and a half after waking, early birds and night owls were equally alert and showed no difference in attention-related brain activity. But after being awake for 10 and a half hours, night owls had grown more alert, performing better on a reaction-time task requiring sustained attention and showing increased activity in brain areas linked to attention. More important, these regions included the suprachiasmatic area, which is home to the body’s circadian clock. This area sends signals to boost alertness as the pressure to sleep mounts. Unlike night owls, early risers didn’t get this late-day lift. Peigneux says faster activation of sleep pressure appears to prevent early birds from fully benefiting from the circadian signal, as evening types do.
If you see this lady turning clockwise you are using your right brain. If you see her turning anti-clockwise, you are using your left brain. Some people can see her turning both ways, but most people see her only one way.
See if you can make her go one way and then the other by shifting the brain’s current.
If you can switch between seeing her turn either way at will without shifting your gaze, your IQ is above 160 … which is almost at genius level!
This was devised at Yale University for a 5 year study on the human brain and its functions.
Only 14% of the US population can see her move both ways. via: leveragingideas
its confirmed. i am a genius. i can make her turn both ways at will if i focus on her foot and shadow. via: nudawn
So can I, as well as if I shift my train of thought.