Selection: participation in a program such as the Erasmus Project in Europe
The typical person experiences:
(1) exposure to new friends, places and ideas that is highly enjoyable and intoxicating
(2) return to previous existence which is viewed as a let down
(3) transient depression while mourning the loss of excitement
The syndrome can become more complex if
(1) the person engaged in serious partying during the experience and now has reasons for serious regrets (addiction, sexually-transmitted disease, police record, etc).
(2) the person is from a small town or cloistered existence
(3) pre-existing depressive disorder
