Dreaming Without Conscious Memory

Can you dream about something you don't even remember doing? In a famous study, patients with amnesia—who

couldn't form new conscious memories—played the video game Tetris for hours. Even though they

had no memory of the game once they stopped playing, they still reported seeing those iconic

falling blocks as they drifted off to sleep. This reveals a fascinating secret about the

sleeping mind: the machinery that builds our dreams doesn't actually need the brain's "conscious"

memory system, the hippocampus, to function. Instead, dreams are often

constructed from "unbound fragments" of recent experiences, facts, and emotions that

are stored throughout the brain. We’re exploring the mysterious link between memory and