9. The Mystery of Phantom Limb Sensations
Many amputees report vivid sensations—sometimes pain—in limbs that no longer exist, a phenomenon known as phantom limb. Neuroscientists propose that the brain’s neural maps, or psychological factors, may be responsible, but the precise cause remains unclear. Treatments are often experimental and not always effective. Phantom limb sensations continue to challenge our understanding of the brain’s perception and body image.