In one book, this author described Sergei Pankejeff, a man who saw white wolves in a tree. This formulator of the "death drive," termed thanatos, imagined himself looking into the mouth of a woman who had recently received treatment from a doctor named Otto in an episode entitled "Irma's Injection," which makes up part of a work in which this man posits that the title phenomena are "wish fulfillment." For 10 points, name 
In one book, this author described Sergei Pankejeff, a man who saw white wolves in a tree. This formulator of the "death drive," termed thanatos, imagined himself looking into the mouth of a woman who had recently received treatment from a doctor named Otto in an episode entitled "Irma's Injection," which makes up part of a work in which this man posits that the title phenomena are "wish fulfillment." For 10 points, name this psychologist who posited the Oedipus complex in his The Interpretation of Dreams, the "father of psychoanalysis."
In one book, this author described Sergei Pankejeff, a man who saw white wolves in a tree.
Sigmund Freud [or Sigismund Schlomo Freud]