Rats, like humans, have dreams about the future.
When they see a treat they can’t reach, rats’ later dreams depict them walking toward it, researchers have found. The discovery may one day provide some insight into what happens in the human mind during sleep.
Maps in the Brain
Scientists already knew that after a rat has explored an area, certain neurons in the hippocampus called “place cells” replay those patterns while the rat sleeps.
“Place cells” in both rats and humans help