(or autoscopy)
The term given to the experience of meeting one's own 'double'. The apparition takes the form of a mirror image of the viewer (see
mirror reversal), facing him and just beyond arm's reach. It is life-sized and may move. Indeed, it usually replicates the viewer's posture, facial expressions, and movements as though it were his reflection. But beyond these features, reported experiences show several differences from the stereotype of popular imagination. First, the image is usually transparent: it has been described as being 'like jelly', or like a film projected on glass. (But it is not blurred or misty — its details are quite clear.) Secondly, it is generally monochromatic; if colour is observed, it is described as dull or 'washed out'. And thirdly, although the apparition may be inferred to include the whole figure, only the face, or head and trunk, are commonly 'seen'.
As reported by normal people, doppelgänger experiences occur most often late at night or at dawn. They are rare, occurring during periods of
stress or fatigue and in conjunction with disturbed
consciousness. (However, the first recorded account, which is attributed to Aristotle, describes a man who could not go out for a walk without meeting his 'double'.) A doppelgänger episode is usually of very short duration with normal people, lasting only a few seconds. The experience is more common among delirious patients, among those with brain lesions in the parieto-occipital regions, or, most notably, among epileptics, where it may be part of a complex partial seizure. Autoscopy can occasionally be a feature of an attack of migraine, sometimes in association with a sense of distortion of a part of the body. The doppelgänger experience, when the subject sees himself standing behind his back or in another room, is referred to as an extracampine
hallucination.
The fact that an apparition is presumed in most cultures to be a visitor from the grave, a spirit of the dead, may well account for the morbid response accorded the doppelgänger experience. After all, the subject is apparently being accosted by his own ghost, which not only raises some knotty questions about the nature of time, but bears the distinct implication that the subject's own time is up. Indeed, the German folk belief was that the doppelgänger was a harbinger of death. Like many old wives' tales, this superstitious belief may have had a factual basis, for in those cases where doppelgänger is associated with severe brain injury or cerebral thrombosis, the illness is often fatal.
The idea of a phantom 'double' has existed throughout recorded history, and still flourishes in superstitions, fairy tales, and folklore throughout the world. It is taken seriously by some parapsychologists as an example of an
out-of-body experience. It figures in many primitive religions, where the 'double' is assumed to be the person's soul. Witches and shamans put their 'doubles' to good use, sending them on occult errands or as representatives or intermediaries. But the doppelgänger concept has also intrigued sophisticated people, and induced in them a dread of the unknown and a morbid assumption of doom akin to the responses of primitive groups. Autoscopic phenomena have frequently been described in the literature of the Western world, always in terms of sinister foreboding or impending tragedy. Descriptions have figured in the works of Dostoevsky, Kafka, de Maupassant, Edgar Allan Poe, Steinbeck, and Oscar Wilde. It is of interest that several of these suffered from epilepsy or cerebral disorder.
Doppelgänger experiences have attracted little medical or psychological study, despite widespread interest. Traditionally, the phenomenon has been classified as a visual hallucination, and its form can be examined in the same terms as other hallucinations. But an added dimension is that the experience is not limited to the visual modality; many subjects have reported that they could 'hear' and 'feel' their doubles. This multi-modality suggests the intriguing possibility that doppelgänger may in some way represent an externalization or displacement of
Sir Henry Head's 'body schema'. However, why should the apparition appear as a mirror image?
(Published 1987)— Graham F. Reed