Erasing memories may no longer be the stuff of science fiction, US researchers believe.
Scientists at Massachusetts Institute of Technology say they have discovered a gene in mice, known as Tet1, which can overwrite old memories with new ones.
As part of their study, scientists compared the behaviour of mice that had their Tet1 gene "knocked out," to those who had not.
Both groups were trained to fear a cage with an electric shock placed inside.
When researchers put the mice back inside the cage, only those with an active Tet1 gene were unafraid of the cage, because their memory of being hurt had been replaced by new information.
Researchers believe the discovery could be used to help treat those suffering from post-traumatic stress disorder or other painful experiences.
Source: New York Post