The Null Device

In neurology today

It turns out that habitual and pathological liars' brains have more white matter than those of normal people. It could be that the extra white matter gives them the ability to keep track of different versions of stories or the mental states of those being lied to, or, indeed, that telling a lie a day will help to bulk up one's brain. In contrast, people suffering from autism, a condition which impairs the ability to lie (and, indeed, awareness of others' mental states), have less white matter.

Also in neurological news, a new study looks at how the brain sleeps:

When we're awake, different parts of the brain use chemicals and nerve cells to communicate constantly across the entire network, similar to the perpetual flow of data between all the different computers, routers and servers that make up the Internet.
In the deepest part of sleep, however, the various nodes of your cranial Internet all lose their connections.
"The brain breaks down into little islands that can't talk to one another," said study leader Giulio Tononi of the University of Wisconsin-Madison.

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