Some people perceive colors when they see certain words, letters or numbers, and some people experience geometric shapes as associated with certain tastes. These are just two examples of synesthesia, a condition characterized by the mixing of the senses. In this episode, Jim and Kim talk about synesthesia and Jim interviews a synesthete. What is the prevalence of synesthesia? Is it heritable? What is it like to have synesthesia? Get the answers to these questions, and many more, on this episode of Minding the Brain! Explore Further: Investigating Spatial Sequence Synesthesia Investigating Spatial Sequence Synesthesia Synaesthesia—A Window Into Perception, Thought and Language https://web.archive.org/web/20060527085838/http://psy.ucsd.edu/~edhubbard/papers/JCS.pdf Synesthetic associations and psychosensory symptoms of temporal epilepsy https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4714732/ A critical review of the neuroimaging literature on synesthesia https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4379872/