New findings provide a clue that daydreams may play a role in brain plasticity. During quiet waking, brain activity in mice suggests the animals are daydreaming about a recent image. Having daydreams about a recently viewed image predicted how the brain would respond to the image in the future.

New findings provide a clue that daydreams may play a role in brain plasticity. During quiet waking, brain activity in mice suggests the animals are daydreaming about a recent image. Having daydreams about a recently viewed image predicted how the brain would respond to the image in the future.