Editing Psychoanalytic theory (section)

==The beginnings==
Freud began his studies on psychoanalysis in collaboration with Dr. [[Josef Breuer]], most notably in relation to the case study of [[Anna O.]]<ref>[http://psychclassics.yorku.ca/Freud/Origin/index.htm], Sigmund Freud: The Origin and Development of Psychoanalysis.</ref> Anna O. was subject to a number of psychosomatic disturbances, such as not being able to drink out of fear.<ref>[http://www.freudfile.org/psychoanalysis/annao_case.html], FreudFild: Anna O. Case.</ref>  Breuer and Freud found that hypnosis was a great help in discovering more about Anna O. and her treatment. Freud frequently referred to the study on Anna O. in his lectures on the origin and development of psychoanalysis.

Observations in the Anna O. case led Freud to theorize that the problems faced by hysterical patients could be associated with painful childhood experiences that could not be recalled. The influence of these lost memories shaped the feelings, thoughts, and behaviors of patients. These studies contributed to the development of the psychoanalytic theory.<ref>Schacter, Gilbert, Wegner. ""Psychology"". Second Edition. New York. Worth Publishers. 2009, 2011. p.12.</ref>