Alexandra Adler ( 24 September 1901 &ndash; 4 January 2001 ) was an Austrian neurologist and the daughter of psychoanalyst Alfred Adler . She has been described as one of the " leading systematizers and interpreters " of Adlerian psychology . In 1937 , Adler and Tracy Jackson Putnam conducted a study on a brain of a multiple sclerosis victim . Illustrations from the study are frequently used in medical literature . Adler 's detailed studies on 500 survivors of the Cocoanut Grove fire is noted as some of the earliest research on posttraumatic stress disorder . Adler discovered that many of the survivors suffered from unsettled grief , particular changes in personality such as guilt and diminished vitality , and an increase in sleep disturbances and anxiety . Her sister was Socialist activist Valentine Adler
Cocoanut Grove fire
Cocoanut Grove fire
Alexandra Adler