This is Your Brain on Candy Crush
http://www.npr.org/blogs/money/2014/10/09/354649902/this-is-your-brain-on-candy-crush
Nir Ayal, one of the interviewees, wrote a book, Hooked: How to Build Habit-Forming Products
posted by Chuck Schallhorn
A resource for any teacher of high school psychology, whether AP, IB or Introduction to Psychology