Your brain is currently expending about a fifth of your body's energy, and almost none of that is being used for what you're ...

Learn how imagination works in the brain and why it may come from higher-level systems, not just a replay of sensory experiences. Your imagination might feel like a mental replay button, conjuring ...

Your imagination might feel like a mental replay button, conjuring images, sounds, and sensations from memory - but new research suggests something far more complex is happening behind the scenes.