1 Historical review: Some topics are better understood if a brief historical review of the topic is presented to lead into the discussion of the moment. Such topics might include "a biographical sketch of a war hero," "an upcoming execution of a convicted criminal," or "drugs and the younger generation." Obviously there are many, many more topics that could be introduced by reviewing the history of the topic before the writer gets down to the nitty gritty of his paper. It is important that the historical review be brief so that it does not take over the paper.
Sadeq Rahimi has noted a common relationship between the uncanny and direct or metaphorical visual references, which he explains in terms of basic processes of ego development, specifically as developed by Jacques Lacan 's theory of the mirror stage . Rahimi presents a wide range of evidence from various contexts to demonstrate how uncanny experiences are typically associated with themes and metaphors of vision, blindness, mirrors and other optical tropes. He also presents historical evidence showing strong presence of ocular and specular themes and associations in the literary and psychological tradition out of which the notion of ‘the uncanny’ emerged. According to Rahimi, instances of the uncanny like doppelgangers , ghosts , Déjà vu , alter egos , self-alienations and split personhoods, phantoms, twins , living dolls, etc. share two important features: that they are closely tied with visual tropes, and that they are variations on the theme of doubling of the ego.