As many as one in every 1,000 people has sensory experiences in which a visual, auditory or other stimulus also prompts an experience with another of the five senses. That is, some people "see" sounds, "taste" shapes, or "feel" colors, and these sensations are as real to them as any so-called normal sense perception. Diane and her guests discuss this phenomenon, which is called synesthesia.
senior fellow at the National Institute of Mental Health
psycholgist and synesthete