Pain is more than an unpleasant sensation. When pain signals reach the brain, they interact with areas involved in thinking, memory and emotion.

Many of us struggle to remember the details of our dreams. The reasons lie in the complicated cycles of our sleep.

New imaging analyses hint at progressive brain disorders like CTE, offering people with memory issues loss some difficult — but transformative — answers.

Your expectations shape and quicken your perceptions. A new model that explains the effect suggests it’s time to update theories about sensory processing.