Scientists Able To Erase Mice Memories

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Mice Can No Longer Remember Elephants Being Afraid Of Them

Remember those movies that show devices used to erase the mind? Well, now researchers may be one step closer to that process. Scientists have now been able to remove certain memories from mice.

“While memories are great teachers and obviously crucial for survival and adaptation, selectively removing incapacitating memories, such as traumatic war memories or an unwanted fear, could help many people live better lives,” says Dr. Joe Z. Tsien, brain scientist and co-director of the Brain & Behavior Discovery Institute at the Medical College of Georgia School of Medicine. “Our work reveals a molecular mechanism of how that can be done quickly and without doing damage to brain cells.”

Dr. Tsien and his team were able to remove new and old memories by over-expressing a protein critical to brain cell communication just as the memory was recalled.

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False Memories May Affect Behavior

False Memories May Affect Behavior 

Do you know someone who claims to remember their first day of kindergarten? Or a trip they took as a toddler? While some people may be able to recall trivial details from the past, laboratory research shows that the human memory can be remarkably fragile and even inventive.

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A Glowing Protein Shows How We Make Memories

A Glowing Protein Shows How We Make Memories

A new strain of genetically engineered mice has allowed researchers to pinpoint, for the first time, the precise cellular connections that form as a memory is created. By tracing a protein tagged to glow fluorescent green as it migrates through individual neurons, from the cell body out through the branching dendrites, the researchers could see exactly which synapses–connections to other neurons–were involved when the mice learned to fear an electric shock.

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