Brain Systems & Networks

Why Don’t We Question Strange Things in Dreams? Dreams routinely break the rules of real life — a dead relative shows up for dinner, a familiar street leads somewhere it never has — and yet the sleeping brain rarely stops to say “this can’t be real.” That’s not because the dreaming brain fails to notice…

What Is the Papez Circuit? The Papez circuit is a loop of connected brain structures that passes signals in a closed circle, starting and ending at the hippocampus — the brain’s main hub for turning experience into memory. It was first proposed in 1937 as a pathway for emotion. Decades of later clinical and imaging…