Research shows how rats process emotion while they sleep, reports CBC.
Do rats dream?
No, not in the way we can say that they have a subjective experience during their sleep. They can’t exactly wake up and tell us about their dream of falling into the abyss or their teeth falling out — two very common human dreams.
But, they do share brain structures with humans that are active during sleep in both species — the amygdala and hippocampus.