SOME ADDITIONAL INFORMATION

We are continuously bombarded by molecules released into our environment.Through the senses of smell and teaste these molecules provide us with important information that we use constantly in our daly lives.
They signal pleasure or danger and inform us about food and drink,or the presense of something to seek or avoid. Thus, like the other senses we have so far considered (somatic sensibility, vision,and hearing), smell and taste inform us about the external world. In addition, however, they also connect that perception with information about our internal environment, its needs,and its satisfactions: hunger,thirst,sex and satiety.