Compared with vision and audition,taste is relatively poorly developed in humans.People often attribute the pleasure of eating good food to the sense of taste,but more often it is the smell that induces enjoyment. You have noticed, of course, that food resembles cardboard in flavor when a head cold congests your nasal passages. The tongue, which registers taste, is actually sensitive to a mere handful of properties, notably salty, sweet, sour, and bitter.