Making sense of scents
Different smells light up different parts of the brain.
By Kate Ramsayer, 00:00 AM May 27, 2005
The nose knows. Your sense of smell can quickly alert you to freshly baked, chocolate chip cookies, a fragrant flower, or a stinky pair of socks.
Now, scientists have a better idea of how the brain makes sense of all these scents. Particular smells appear to turn on particular combinations of brain cells, researchers suggest.
When your nose catches a whiff of something, one of 1,000 different types of odor-receiving cells picks it up. These cells send an electrical signal to a...
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