Tuesday, September 24, 2013

Old Memories Fade Away...

If you got beat up by a bully on your walk home from school every day, you would probably become very afraid of the spot where you usually met him. However, if the bully moved out of town, you would gradually cease to fear that area. Neuroscientists call this phenomenon "memory extinction": Conditioned responses fade away as older memories are replaced with new experiences. A new study from MIT reveals a gene that is critical to the process of memory extinction. more

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