er to reproduce the same feeling. What is most significant about Miller's perception is that the serial killers do not suffer from a neurological disease; rather, their pathology differs from typical males "only in terms of degree, not the nature of the act" (qtd. in Ramsland, 2001, "How Doctors Can Kill," p. 1).
As an extension of this theory that serial killers' behavior is on the extreme end of the spectrum of normal human behavior, Lifton (1986) proposed that doctors who engage in serial killing utilize the psychological mechanism of "doubling" to accommodate their need to kill. Derived from his study of Nazi doctors, Lifton (1986) contended that this theory would be applicable to any doctor who engages in serial killings. According to this theoretical model, these doctors possess a prior selfùthe typical individual, as well as a doubled selfùthe serial murderer. It is important to note that they are not suffering from any mental disorders
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