1882-1960. Austrian child psychoanalyst. She
pioneered child psychoanalysis and play
studies, and was influenced by Sigmund
Freud's theories. She published The
Psychoanalysis of Children in 1960. Klein
analysed the behaviour of children through
the use of play techniques; this practice was
later adopted in child guidance clinics. Her
research into the origins of mental disorder
psychosis, schizophrenia, and depression
extended the range of patients who can
usefully undergo psycholanalysis.