Neuroscience

Memories of movement are replayed randomly during sleep

Sleep is far from an inactive time for the brain: while rats (and humans) are asleep, neurons in the hippocampus fire rapidly. After a rat has repeatedly moved from one spot to another, the same neurons that fired while the ...

Neuroscience

So close, rats can almost taste it

A subset of neurons in the hippocampus respond to both place and taste, according to research in male rats published in JNeurosci. The study shows how animals may remember and find their way back to locations where they previously ...

Neuroscience

MRI scans reveal how brain protects memories

Two distinct parts of the human brain—the neocortex and the hippocampus (a part of the brain involved in higher-order brain functions) - have been shown to help protect our memories from interfering with one another.

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