Summary
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1.
Senile patients suffering from nocturnal delirium were found to develop this delirium on being placed in a dark room during the day.
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They were also found to suffer from severe impairment of their capacity to retain what they had registered.
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It was suggested that their delirium may be based upon an inability to maintain a spatial image without the assistance of a repeated visualization.
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Thirteen out of 16 of these patients when blindfolded showed a severe distortion of their spatial image within an hour. This supports the above hypothesis.
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References
Bleuler E.: Textbook of Psychiatry. 1930, Macmillan, New York.
Bleuler, E.: Textbook of Psychiatry. 1936, Macmillan, New York, p. 279.
Cameron, D. E.: Certain aspects of defects of recent memory occurring in the psychoses of the senium. 1940, Arch. Neur. & Psychiat., 43, pp. 987–992.
Henderson, D. K., and Gillespie, R. D.: Textbook of Psychiatry. 1937, Oxford Med. Publications, fourth edition, p. 344.
Noyes, A. P.: Modern Clinical Psychiatry. 1939. W. N. Saunders Co., Philadelphia and London. p. 294.
Sadler, W. S.: Theory and Practice of Psychiatry. 1936, C. V. Mosby Co., p. 910.
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From the Department of neurology and psychiatry, Albany Medical College, Albany, N. Y.
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Cameron, D.E. Studies in senile nocturnal delirium. Psych Quar 15, 47–53 (1941). https://doi.org/10.1007/BF01613953
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DOI: https://doi.org/10.1007/BF01613953