Answer:

autism

Answer	Crossword Clue
AUTISM	"Rain Man" subject
AUTISM	Temple Grandin's disorder
AUTISM	Social behavior issue

AUTISM	Developmental disorder
AUTISM	Absorption in phantasy: Psychol.
AUTISM	Daydreaming state, in psychology.
AUTISM	Withdrawn state
AUTISM	Psychiatric disorder
AUTISM	Psychologist's study
AUTISM	Asperger's is a form of it
AUTISM	Condition represented by a puzzle piece

AUTISM	"Rain Man" disorder
AUTISM	Special-education challenge
AUTISM	Condition for filmdom's Rain Man