Science Using light, scientists turn bad mouse memories into good ones

Scientists say they have successfully used light to manipulate the neurons in the brains of mice to turn fearful memories into happier ones.

By , LiveScience Staff Writer

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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.