Psychedelics appear to reshape how the brain builds reality by dampening incoming visual signals and boosting internal memory networks.

The room dissolves into a rushing collage of childhood bedrooms, long-forgotten faces and the exact shade of blue from an old family car. For many people who take psilocybin, these memory-fueled ...

Picture a star-shaped cell in the brain, stretching its spindly arms out to cradle the neurons around it. That's an astrocyte, and for a long time, scientists thought its job was caretaking the brain, ...