How do you fit a human life’s experiences into 1.3 kilograms of brain? Neuroscientists have searched for the cells that generate and store our memories for decades. Now, some surprising hints have turned up in the brains of hibernating mice.
Over two days, hibernating mice temporarily lost nearly half of the connections between their brain cells in a key brain region for memory. But after this ordeal, the mice retained their memories. Imaging shows that key connections between brain cells had regrown, often in exactly the same place that they had disappeared from. The researchers also identified hub-like clusters of brain cell connections…
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