The analytic literature concerned with screen memories has emphasized the dynamic and economic conditions by which the ego, acting in a state of relative insufficiency, utilizes repression to bar from consciousness a painful affect or idea and displacement of the drive impulse onto some contiguous factor to facilitate the concealment. This factor, selected by the ego in the dynamic fashion of symptom or dream, conceals and yet symbolizes that which is being repressed. The drive cathexis which it receives partially accounts for the vividness and persistence of the screen memory. But an additional factor, a 'command to remember' that for many patients is consciously connected with the relatively neutral screen memory, constitutes an important contribution of the superego to the persistence and vicissitudes of the screen. A case is described in detail which demonstrates the command function of the injunction to remember and the relationship of screens to pseudologia phantastica, both intended to ward off awareness of a painful