Neuroscience

Three types of cells help the brain tell day from night

Bright light at night interrupts the body's normal day-night cycles, called circadian rhythms, and can trigger insomnia. In fact, circadian rhythms play a major role in health. Disrupted day-night cycles have even been linked ...

Genetics

With single gene insertion, blind mice regain sight

It was surprisingly simple. University of California, Berkeley, scientists inserted a gene for a green-light receptor into the eyes of blind mice and, a month later, they were navigating around obstacles as easily as mice ...

Neuroscience

Eyes have a natural version of night vision

To see under starlight and moonlight, the retina of the eye changes both the software and hardware of its light-sensing cells to create a kind of night vision. Retinal circuits that were thought to be unchanging and programmed ...

Medical research

Cockayne syndrome: New insights into cellular DNA repair mechanism

Cockayne syndrome is a severe autosomal recessive disorder caused by defective DNA repair mechanisms. People with the disease have much reduced life expectancy and suffer from facial deformities; growth failure; neurological, ...

Radiology & Imaging

World's most powerful MRI scans first images of human brain

The world's most powerful MRI scanner has delivered its first images of human brains, reaching a new level of precision that is hoped will shed more light on our mysterious minds—and the illnesses that haunt them.

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