Scotomization, often used interchangeably with scotomatization, is a theoretical construct originating in psychoanalysis that describes a profound defense mechanism wherein the mind actively and unconsciously excludes or “erases” the perception of a traumatic event, unacceptable impulse, or memory that poses a significant threat to the integrity of the ego. Unlike simple denial, which might involve refusing to acknowledge a perceived reality, scotomization suggests a more radical, almost pre-perceptual mechanism where the threatening content is barred from conscious awareness as if a psychological blind spot has been imposed upon the psychic field. This process is postulated to occur at a deep, fundamental level, effectively rendering the overwhelming experience non-existent to the conscious self.

The core function of scotomization is the preservation of psychic equilibrium. When internal drives or external realities are so contradictory to the subject’s established self-concept or societal norms that their acknowledgment would provoke intolerable anxiety or shame, the ego employs this mechanism. The material being scotomized—whether it is an aggressive impulse, a prohibited desire, or the memory of severe trauma—is treated by the unconscious system as foreign and dangerous. The successful deployment of scotomization results in the subject being genuinely unaware of the threatening reality, not merely ignoring it. This makes it a powerful, albeit often maladaptive, tool for instantaneous psychological survival when facing catastrophic internal or external threats.

The mechanism draws its name directly from ophthalmology, where a scotoma refers to an area of partial or complete loss of vision within an otherwise normal visual field—a literal blind spot. Psychoanalytically, scotomization is the direct psychological analogue: a restricted zone in the field of consciousness where certain realities cannot register, even if they are physically present or actively influencing behavior. As a mental defense device, scotomization acts as a form of resistance in clinical settings, making therapeutic engagement with the scotomized material exceedingly difficult, as the patient cannot report or reflect upon something they genuinely do not perceive as existing within their mental landscape.

I'm thinking about the film we saw last night, The Vanishing, it's working in my head more after than during, the mark of a good film, which I disparaged while watching.

I saw the word in Ida Vitale, Lexicon of Affinities, just when we were talking about a scene in The Vanishing. I often read through an unknown word hoping context will suffice, and I feel I'm actually losing words I knew or thought I knew, so I determine to slow down and look up words as i read.

Actually now I think about it, I did use the dictionary more often in the past. I need aids of memory maybe more now with age.