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News Link • Science, Medicine and Technology

Lock - in Enzyme for Memories

• arclein
In earlier studies, the researchers conditioned rats to associate a nauseating sensation with saccharin by pairing it with lithium, so that they shunned the sweet taste. However, after the rats received a chemical that blocked the enzyme PKMzeta in the brain's neocortex, where long-term memories are stored, their sweet tooth returned within a couple of hours. The effect only worked retroactively and appeared to be permanent,

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