Possible Clues:

• Subj. involving cognitive development
• Him saying 'Oppan Gangnam Style' was entered into the Yale Book of Quotations
• Korean performer with a monster 2012 international hit
• Humanities maj
• Study of Freud, etc., in a coll. catalog
• University course, for short
• Adler's subj.
• Future therapist's maj.
• Stage name for 2012 singing sensation Park Jae-sang
• Freudian subj.