Light Turns Bad Memories Into Happy Ones

August 28, 2014 4:07 PM

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Memories are often associated with emotions, and these feelings can change through new experiences and over time. Now, using light, scientists have been able to manipulate mice brain cells and turn the animals' fearful memories into happy ones, according to a new study.

Memories are encoded in groups of neurons that are activated together or in specific patterns, but it is thought that neurons in different brain regions encode different aspects of a memory of an event. For example, the place where an event occurred and the emotion associated with it may be stored i...

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