hysteria or other conditions implying a disturbed or diseased state of consciousness. It is a rule, therefore, that subconscious behaviour is either the result of, or a symptom of, some degree of disorganisation of the normal consciousness. There may be exceptions, but the rule is so general that one would be justified in regarding alleged exceptions with suspicion.
It would lead too far afield to consider all other known types of subconscious behaviour, but I do not think that the description given is inconsistent with the general view that such occurrences as the alteration of personality, insane delusions, ‘possessions’, and spiritual mediumship are all more or less impure incipient forms of the same psychological process. The subconscious purpose of behaviour under hypnosis agrees with other types in that it appears only during an abnormal state of consciousness.
In its activity, however, hypnotic subconscious behaviour differs considerably from that of all other types. Outside hypnosis, subconscious behaviour is generally very much like conscious behaviour. The mind that contains it reacts in the same way as the conscious mentality does and its attributes do not differ qualitatively or quantitatively from those of the conscious mind. In other words, the behaviour is essentially no different from what it would have been had it been directed by the normal conscious mind.
Here the hypnotic subconscious mentality reveals an apparently supreme dissimilarity. It also uses the same senses that the conscious mind does, but it uses them in a very different manner, and in no less a degree does it differ quantitatively in several of its attributes. It is particularly in the perfection of ‘hypnotic memory’ and extreme sense-acuteness that the hypnotic mind is distinguished from the normal conscious mind and from other types of subconscious mentality. These wonderful attributes were mainly responsible for the creation of the wrong hypothesis and for that sense of the mysterious which overshadowed the work of the first explorers into this condition. But even today it is difficult to look with contempt on those early errors. More systematic knowledge has not rendered these attributes any the less wonderful. They still exert a powerful influence on human imagination and often thus stand as an impediment between investigation and the attainment of truth.
It must always be borne in mind that the wonder of this hypnotic sense-acuteness and memory is entirely relative to the standard by which they are judged. When judged by the normal conscious mind, they seem to lie outside the order of nature. But when it is realised that this same sense-acuteness and perfection of ‘memory’ - in a certain sense - constitute the ordinary psychic life of the lower animals, that even in so high a primate as the chacma the same sense-acuteness is a normal manifestation, then the marvellousness of these attributes becomes less obtrusive.
The great number and sometimes contradictory theories that have been ad-