Hallucination

Hallucination, in this account, is not simply a false perception or a thought released by weaker censorship. It is a regressive movement in the psychical apparatus: excitation turns away from the motor direction of waking thought and travels back toward the sensory system, where thought can acquire the vividness of perception. This model connects hallucinatory dreams with visions in waking life and locates their force in the attraction of suppressed or unconscious memories, particularly those rooted in childhood.

Regression and sensory vividness

In the waking state, psychical processes are described as moving progressively from the unconscious toward thought and action. A hallucinatory dream takes the reverse route. Its excitation moves away from the motor end of the apparatus and toward the sensory end, ultimately reaching the system of perception. This backward direction is regression, one of the defining features of dreaming, though not a process unique to it.

Remembering also involves a backward movement: a complex act of thought can lead back toward the memory-traces on which it rests. But ordinary waking recollection stops short of perceptual hallucination. Freud proposes that a difference in the movement of intensities helps explain the dream’s exceptional vividness. In dream-work, the intensity attached to imagined ideas can be transferred from one idea to another; this altered distribution of energy may charge the perceptual system in reverse, allowing thought to reach sensory intensity.

A reduction in censorship between the unconscious and preconscious systems cannot by itself account for hallucinatory dreams. It may explain dreams made from imagined ideas, but not the burning-child dream that had posed the problem for the inquiry. Hallucination therefore requires an account of the route taken by excitation, not merely an account of a barrier becoming less restrictive.

Memories behind waking visions

Freud extends the model beyond dreams to hallucinations in hysteria and paranoia, as well as visions experienced by people otherwise considered mentally sound. In these cases, thoughts are transformed into images, and the thoughts that undergo this transformation are closely connected with suppressed or still-unconscious memories. The remembered material can draw a censored idea into regression, giving it an image-based form in which it can become psychically present.

A twelve-year-old boy with hysteria was kept from sleep by frightening green faces with red eyes. The apparition drew on a suppressed but formerly conscious memory of a boy he had often seen four years earlier. His mother had described that badly behaved boy as greenish in the face and red-eyed; he had embodied habits the patient later accused himself of having shared, including masturbation. The faces also recalled the mother’s prediction that boys of that sort would become weak-minded, fail at school, and die young. The patient was failing at school and feared the prediction’s other consequences. Treatment enabled him to sleep again, lose his fears, and finish the school year with an excellent report. The apparition thus gathered remembered features and anxieties into a terrifying image rather than presenting an unexplained visitor.

A forty-year-old woman recalled a vision from a period when she was in good health. On opening her eyes one morning, she saw her brother in the room, although he was in a lunatic asylum. Her young son was sleeping beside her; fearing that the sight of his uncle might frighten him and bring on convulsions, she drew the sheet over the child, and the apparition vanished. Freud traced the vision to a childhood memory connected with the woman’s mother, who had died when the patient was eighteen months old. Her nurse had told her that the mother suffered epileptic or hysterical convulsions after being frightened by an apparition of her own brother, the patient’s uncle, with a sheet over his head.

The vision retained the memory’s elements—the brother, the sheet, the fright, and its effect—but rearranged them among different figures and circumstances. Its evident motive was the woman’s worry that her son, who closely resembled his uncle, might share the same fate. The remembered scene did not return as a literal replay: it was transformed into an image suited to a later fear. Freud notes that the example remains connected with sleep and so is not, on its own, a conclusive demonstration of waking regression; he also invokes his analysis of hallucinatory paranoia and his studies of the psychoneuroses in support of the wider claim.

Childhood memory as an image-making force

Freud argues that scenes from childhood, whether recollections or fantasies, can return to consciousness as hallucinations. They lose this character only when they are communicated. Even people who do not ordinarily possess visual memory may retain early childhood recollections with a sensory vividness that persists into later years. In this account, memory is not merely a store of past content: its visual intensity can help determine the form in which a thought returns.

Infantile experience and fantasies based on it also contribute to dream-thoughts and dream-wishes. Freud therefore proposes that a memory seeking revival can exert an attraction on thoughts cut off from consciousness, drawing them into transformation as images. A dream may serve as a substitute for an infantile scene, altered by transferring it onto recent experience. Since the childhood scene cannot be renewed directly, it returns in the modified form of a dream. This account also makes an independent hypothesis about special visual stimulation in vivid dreams less necessary: excitation of the perceptual system may represent the renewed force of a visual stimulus once experienced and now reactivated by memory.

The same regressive route appears in Freud’s summary of dream formation. A residue of waking activity may retain an energetic charge overnight; waking activity may instead have stirred an unconscious wish, or both may occur. The wish reaches recent material, either during the day or after sleep begins, and moves toward consciousness by way of the preconscious. Censorship distorts it, while the state of sleep prevents the preconscious from carrying the process farther along its ordinary course. Dreaming then turns back toward perception, following the attraction of memory-groups, some charged with visual intensity but not translated into the later systems. In this backward movement the thought acquires representability and can become perceptible to consciousness.

Hallucination and the reality of unconscious processes

The theory of hallucination supports a broader challenge to the equation of the psychical with the conscious. Freud argues that a dream analysis or close observation of a neurotic can show complex, logical thought-processes operating without entering the person’s awareness. A physician encounters such processes through effects that can be observed or communicated, but those effects may differ greatly from the unconscious process that produced them. The connection must therefore be inferred; the conscious effect is a remote consequence, not proof that the underlying process itself became conscious.

Hallucination makes this gap especially visible. An image can be vivid and consciously experienced while its determining memories and thoughts remain inaccessible as such. Its apparent immediacy does not erase its history: the image may be the altered return of material that censorship has denied direct expression. By treating unconscious activity as psychical in its own right, Freud places hallucination within a general account of mental life rather than treating consciousness as the sole measure of what is real in the psyche.