brain_plasticity

brain_plasticity - Published online 22 March 2007 | Nature...

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Published online 22 March 2007 | Nature | doi:10.1038/news070319-12 News Mice made to see a rainbow of colours All you need to see more is more pigments in the eye. Lucy Odling Smee Mice can usually only see a dull mix of yellow, blues and greys.Getty Simply by inserting a piece of DNA that codes for a human eye pigment into the genome of a mouse, scientists have introduced a rainbow array of colour to the dull mix of yellows, blues and greys that normally make up a mouse's visual world. This suggests that the mammalian brain is very flexible and can interpret signals not normally encountered. It also hints that just a single genetic mutation could have added reds and greens to the visual palette of our ancestors tens of millions of years ago. Gerald Jacobs from the University of California in Santa Barbara and his colleagues have genetically engineered mice with a human pigment in their eye as well as the normal mouse pigments and shown that this does appear to give the mice the ability to see colours they could not see before. "The implications are astounding," says David Williams, an expert in vision at the
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This note was uploaded on 09/14/2009 for the course MCDB 20 taught by Professor Cooper during the Summer '08 term at UCSB.

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brain_plasticity - Published online 22 March 2007 | Nature...

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