a pseudonym for Josef Breuer's (1842-1925) feminist patient, Bertha L' Appenheim, whose hysteria led him to note the importance of psychoanalysis as a treatment. Later, his colleague Sigmund Freud would popularize this concept.

ANNA O: "Anna O was one of the first patients who received a treatment similar to the modern day psychoanalysis."
Cite this page: N., Pam M.S., "ANNA O," in, April 7, 2013, (accessed October 25, 2020).