A professor organized 120 young participants to familiarize them with a false city on the computer  Then let them find out the shortest route to the key landmarks at the specified location as quickly as possible and finally let them identify the scent of 40 aromatic plants, such as Zanthoxylum bungeanum and Zanthoxylum bungeanum  It was found that those who scored higher in the pathfinding task had a better sense of smell
Some of the participants are gourmets who are often invited to enjoy delicious food in specialty restaurants throughout the city.
 The professor infers that a person's good spatial memory and strong sense of direction will make his sense of smell more sensitive