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Dark Adaptation in Neurotic Patients

Published online by Cambridge University Press:  08 February 2018

G. W. Granger
G. W. Granger*
Affiliation:
Psychological Department, Institute of Psychiatry Maudsley Hospital, London, S.E.5
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Extract

Several studies have been undertaken in which the “dark vision” of normal and neurotic groups has been compared (see (5) for references). As a result of these researches it appears that neurotic patients tend to have inferior performances to normal subjects on tests of “dark vision”. The term “dark vision” is, however, a very general one, covering all aspects of visual functioning at brightness levels below about 0 · 01 candle per square foot (13). Clearly we need to know more precisely which aspects of dark vision are impaired in neurotics, the extent of the impairment, the conditions under which it occurs, etc., if we are to go beyond fairly crude descriptive statements about differences between normal and neurotic groups to an understanding of the processes involved.

Type
Original Articles
Information
Journal of Mental Science , Volume 101 , Issue 423 , April 1955 , pp. 354 - 362
Copyright
Copyright © Royal College of Psychiatrists, 1955 

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References

1. Craik, K. J., and Vernon, M. D., “The nature of dark adaptation”, Brit. J. Psychol., 1941, 32, 62–81.Google Scholar
2. Idem , “Perception during dark adaptation”, Brit. J. Psychol., 1942, 32, 206–230.Google Scholar
3. Fisher, R. A., Statistical Methods for Research Workers, 1936. London, Oliver & Boyd.Google Scholar
4. Godding, E. W., “An instrument for testing dark adaptation”, Proc. roy. Soc. Med., 1945, 38, (4), 155–167.CrossRefGoogle Scholar
5. Granger, G. W., “Personality and visual perception: a review”, J. ment. Sci., 1953, 99, 8–43.Google Scholar
6. Idem , “The night visual ability of psychiatric patients”, Brit. J. physiol. Opt., 1954, 11, 238–244.Google Scholar
7. Gravely, A. M., Ph.D. Thesis, 1950. Univ. London.Google Scholar
8. Hecht, S., and Mandelbaum, J., “The relation between vitamin A and dark adaptation”, J. Amer. med. Assn., 1939, 112, 1910–1916.Google Scholar
9. Hildebrand, H. P., Ph.D. Thesis, 1954. Univ. London.Google Scholar
10. Livingston, P. C., and Bolton, B., “Night visual capacity in psychological cases”, Lancet, 1943, 1, 263.CrossRefGoogle Scholar
11. Rees, W. L. L., “Night visual capacity of neurotic soldiers”, J. Neurol. Neuros. Psychiat., 1945, 8, 34–39.Google Scholar
12. Robertson, G. W., and Yudkin, J., “Studies of dark adaptation as a means of detecting vitamin A deficiency”, Brit. J. Ophthal., 1944, 28, 556.Google Scholar
13. Wright, W. D., “Night Vision”. In Modern Trends in Ophthalmology. (Ed.: Sorsby, A.,) 1948. London, Butterworth.Google Scholar
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