Meet neuroscientist Steffie Tomson in these videos from NOVA's "The Secret Life of Scientists & Engineers." Steffie studies synesthesia—a perceptual condition where the senses are blended. Steffie brings a special perspective to her research, since she herself is a synethete. Synesthesia is harmless, but it is an example of how abnormal network connections are formed and it may support research on other conditions. This resource is part of the NOVA: Secret Life of Scientists & Engineers Collection.