For the first time ever, neuroscientists have observed memory-forming molecules travel around the brain of a living animal. The unprecedented breakthrough is shedding light on how nerve cells make memories.
Prior to being able to recall — or more accurately, reconstruct — a memory, it has to be encoded and stored in the brain. It's a complicated and dynamic process involving changes to molecular structures which alter synaptic transmissions between neurons. But watching this process in action is easier said than done.