After 30 Years, A Patient Was Able To "Taste" Again. Here's How.Esther Inglis-Arkell2/25/15 2:10pm146EditPromoteGo to permalinkIn 1975, a man sustained a terrible injury to his brain that left him, among other things, unable to distinguish tastes. He couldn't tell sugar water from salt water. In 2005, one experiment caused him to strongly prefer sugar to salt. Here's the tweak that changed things.