Anomalies and Curiosities of Medicine [537]
Bohn, Richter,--in fact nearly all the ancient physiologists and anatomists have written on this subject. The marvelous manifestations of somnambulism are still among the more surprising phenomena with which science has to deal. That a person deeply immersed in thought should walk and talk while apparently unconscious, excites no surprise, but that anyone should when fast asleep perform a series of complicated actions which undoubtedly demand the assistance of the senses is marvelous indeed. Often he will rise in the night, walk from room to room, go out on porticoes, and in some cases on steep roofs, where he would not dare to venture while awake. Frequently he will wander for hours through streets and fields, returning home and to bed without knowledge of anything having transpired.
The state of the eyes during somnambulism varies considerably. They are sometimes closed, sometimes half-closed, and frequently quite open; the pupil is sometimes widely dilated, sometimes contracted, sometimes natural, and for the most part insensible to light.
Somnambulism seems to be hereditary. Willis cites an example in which the father and the children were somnambulists, and in other cases several individuals in the same family have been afflicted. Horstius gives a history of three young brothers who became somnambulistic at the same epoch. A remarkable instance of somnambulism was the case of a lad of sixteen and a half years who, in an attack of somnambulism, went to the stable, saddled his horse, asked for his whip, and disputed with the toll-keeper about his fare, and when he awoke had no recollection whatever of his acts, having been altogether an hour in his trance.
Marville quotes the case of an Italian of thirty, melancholic, and a deep thinker, who was observed one evening in his bed. It was seen that he slept with his eyes open but fixed and immovable. His hands were cold, and his pulse extremely slow. At midnight he brusquely tore the curtains of his bed aside, dressed himself, went to his stable, and mounted a horse. Finding the gate of the court yard closed he opened it with the aid of a large stone. Soon he dismounted, went to a billiard room, and simulated all the movements of one playing. In another room he struck with his empty hands a harpsichord, and finally returned to his bed. He appeared to be irritated when anybody made a noise, but a light placed under his nose was apparently unnoticed. He awoke if his feet were tickled, or if a horn was blown in his ear. Tissot transmits to us the example of a medical student who arose in the night, pursued his studies, and returned to bed without awaking; and there is another record of an ecclesiastic who finished his sermon in his sleep.
The Archbishop of Bordeaux attests the case of a young ecclesiastic who was in the habit of getting up during the night in a state of somnambulism, taking pen, ink, and paper, and composing and writing sermons. When he had finished a page he would read aloud what he had written and correct it. In order to ascertain whether the somnambulist made any use of his eyes the Archbishop held a piece of cardboard under his chin to prevent his seeing the paper upon which he was writing. He continued to write without being in the slightest degree incommoded. In this state he also copied out pieces of music, and when it happened that the words were written in too large characters and did not stand over the corresponding notes he perceived his error, blotted them out, and wrote them over again with great exactness.
Negretti, a sleep-walker, sometimes carried a candle about with him as if to furnish him light in his employment, but when a bottle was substituted he carried it, fancying that he had the candle. Another somnambulist, Castelli, was found by Dr. Sloane translating Italian and French and looking out words in his dictionary. His candle was purposely extinguished, whereupon he immediately began groping about, as if in the dark, and, although other lighted candles were in the room, he did not resume his occupation until he had relighted
The state of the eyes during somnambulism varies considerably. They are sometimes closed, sometimes half-closed, and frequently quite open; the pupil is sometimes widely dilated, sometimes contracted, sometimes natural, and for the most part insensible to light.
Somnambulism seems to be hereditary. Willis cites an example in which the father and the children were somnambulists, and in other cases several individuals in the same family have been afflicted. Horstius gives a history of three young brothers who became somnambulistic at the same epoch. A remarkable instance of somnambulism was the case of a lad of sixteen and a half years who, in an attack of somnambulism, went to the stable, saddled his horse, asked for his whip, and disputed with the toll-keeper about his fare, and when he awoke had no recollection whatever of his acts, having been altogether an hour in his trance.
Marville quotes the case of an Italian of thirty, melancholic, and a deep thinker, who was observed one evening in his bed. It was seen that he slept with his eyes open but fixed and immovable. His hands were cold, and his pulse extremely slow. At midnight he brusquely tore the curtains of his bed aside, dressed himself, went to his stable, and mounted a horse. Finding the gate of the court yard closed he opened it with the aid of a large stone. Soon he dismounted, went to a billiard room, and simulated all the movements of one playing. In another room he struck with his empty hands a harpsichord, and finally returned to his bed. He appeared to be irritated when anybody made a noise, but a light placed under his nose was apparently unnoticed. He awoke if his feet were tickled, or if a horn was blown in his ear. Tissot transmits to us the example of a medical student who arose in the night, pursued his studies, and returned to bed without awaking; and there is another record of an ecclesiastic who finished his sermon in his sleep.
The Archbishop of Bordeaux attests the case of a young ecclesiastic who was in the habit of getting up during the night in a state of somnambulism, taking pen, ink, and paper, and composing and writing sermons. When he had finished a page he would read aloud what he had written and correct it. In order to ascertain whether the somnambulist made any use of his eyes the Archbishop held a piece of cardboard under his chin to prevent his seeing the paper upon which he was writing. He continued to write without being in the slightest degree incommoded. In this state he also copied out pieces of music, and when it happened that the words were written in too large characters and did not stand over the corresponding notes he perceived his error, blotted them out, and wrote them over again with great exactness.
Negretti, a sleep-walker, sometimes carried a candle about with him as if to furnish him light in his employment, but when a bottle was substituted he carried it, fancying that he had the candle. Another somnambulist, Castelli, was found by Dr. Sloane translating Italian and French and looking out words in his dictionary. His candle was purposely extinguished, whereupon he immediately began groping about, as if in the dark, and, although other lighted candles were in the room, he did not resume his occupation until he had relighted