When Edith was 14 years old, she came down with the stomach flu shortly after eating lamb for dinner. Later, the smell of any co
oked meat made her feel nauseated, and she eventually became a vegetarian, refusing to eat meat. In Edith's case, her association between two events, eating meat and stomach flu, is a real life example of:
Associative learning. This usually happens when an individual reacts to an stimuli and visual or auditory behavior. It has been proved by many experts that there is a relationship between events that traumatize an individual, concepts and even mental states. The relationship between them and the experiences of the individual would shape weird behaviors that other wise they would not ever manifest.
I believe the answer you are looking for is "case study" A case study is a publication of an experience conducted over an amount of time. It could be based on behavior for each or a group.