Generally it is thought to be the task of psychoanalysis to bring that which is unconscious into consciousness. Loch attempts to spell out the implications of this formula, connecting the early neurophysiologically expressed ideas of Freud with those of current ego psychology. The unconscious (or, as Freud put it, that which is essentially psychic) is non-verbal but can be replaced by language or transformed into language. The experiences of the unconscious are fixated in memory traces, i.e. traces of object relations in the form of pre-structures for the subsequent formation of representations. Such memory traces ('thing representations') are relevant to psychoanalytic therapy insofar as they are traces of traumatic object relations. Three aims of psychoanalysis may be considered: to make conscious repressed ideas, memory traces and the 'nucleus of the ego'. Experimental action and the translation of unconscious into conscious material are the essential (constructive and psychological) ego accomplishments. It is the central task of psychoanalytic therapy to enhance the strength of the ego.