While sleep is characterized by a decrease of sensitiveness and of selective powers, the selective process of hypnotism rather reenforces sensitiveness and memory in every field which is covered by the suggestive influence. Stimuli may become noticeable which the normal man is unable to perceive, and long-forgotten experiences which seem inaccessible to the search of the waking mind may reproduce themselves and may vividly enter consciousness. Again we have there symptoms which rather characterize the state of over-attention than the state of sleep. We might add further that we know states with all the characteristics of hypnotism in which even the subjective idea of sleep is entirely absent, for instance, all those which are usually called states of fascination. A certain shining light or a glimpse of an uncanny eye may startle and upset the imagination of the subject and throw him into a state of abnormally increased suggestibility. It is well known that whole epidemics of such captivation have occurred and have resulted in hysterias of the masses in which the subjects become the slaves of their impulse, perhaps to imitate what they see or hear, or to realize ideas in which they believe without logical warrant. They surely are not asleep, are not even partially asleep. Every center of their brains would be ready to work, if the captivated attention were not forcing the mind in one direction and selectively suppressing every impulse to opposite actions. The developed hypnotism finally shades off into innumerable states of hypnoid character in which the sleeplike symptoms are entirely in the background.