Introducing rewards like gold or silver stars to children who chose to draw increased their dopamine experience.

“started introducing rewards to these children they started putting a gold star or in some cases a silver star on their pieces of artwork and telling them what a good job they did and the kids really liked that in fact who wouldn't right they're not only doing an activity that they like but they're also getting a reward for it so you can probably see where this is all going what they were doing was they were increasing the amount of dopamine that these children experience”