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Experimental Studies of the Mental Speed of Schizophrenics

II. Effects of Practice

Published online by Cambridge University Press:  08 February 2018

Anne Broadhurst*
Affiliation:
Springfield Hospital, Upper Tooting

Extract

In this paper, a further examination is made of the finding that schizophrenics, given a problem-solving task to measure mental speed, showed marked improvements attributable to practice (4).

Preliminary investigation suggested the importance of the effects of both practice and drugs on speed of problem solving. The latter is reported elsewhere (4). There appears in the literature to be agreement that marked improvement is shown by schizophrenic patients after practice, but Huston and Shakow (11, 12) for example, give evidence that this improvement is even more marked for schizophrenics than it is for normals while Hunt and Cofer (9) report the contrary. Huston and Shakow also raise the question of whether or not it is possible, by very extended practice, to bring the performance of schizophrenics to the level of perfection reached by normal subjects after practice. Clarification of these points is necessary.

Type
Original Articles
Copyright
Copyright © Royal College of Psychiatrists, 1958 

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References

Babcock, Harriet, Dementia Precox. A Psychological Study, 1933. New York: Sci. Press Co.CrossRefGoogle Scholar
Boring, E. G., “Learning in dementia precox”, Psychol. Monogr., 1913, 15, No. 2 (Whole No. 63).CrossRefGoogle Scholar
Broadhurst, Anne, “Improvement in speed of mental functioning in schizophrenics”, Bull. Brit. Psychol. Soc., 1957, 32, (Inset p. 4). Abstract.Google Scholar
Broadhurst, Anne, “Experimental studies of the mental speed of schizophrenics. I. Effects of a stimulant and a depressant drug”, J. Ment. Sci., 1958, 104, 1123.CrossRefGoogle Scholar
Eysenck, H. J., Differential cognitive tests, 1953. Office of Naval Research Report. Contract No. N625585. Bur. Med. Surg., U.S. Navy, London Branch.Google Scholar
Furneaux, W. D., “Some speed, error and difficulty relationships within a problem-solving situation”, Nature, 1952, 170, 3738.CrossRefGoogle Scholar
Idem , “A note on the Nufferno tests of inductive reasoning abilities, including summaries of such norms as have so far been established”, Parts 1–5. Nuffield Research Unit (Selection of Students) Internal Report No. F.I. April, 1953. Revised August, 1954. Unpublished.Google Scholar
Gatewood, L. C., “An experimental study of dementia praecox”, Psychol. Monogr., 1909, 11, No. 2 (Whole No. 45).CrossRefGoogle Scholar
Hunt, J. McV., and Cofer, C. N., “Psychological deficit”, in Hunt, J. McV. (Ed.) Personality and the behavior disorders, 1944, Vol. II, pp. 9711032. New York: Ronald Press.Google Scholar
Huston, P. E., “The reflex time of the patellar tendon reflex in normal and schizophrenic subjects”, J. gen. Psychol., 1935, 13, 341.CrossRefGoogle Scholar
Idem and Shakow, D., “Learning in schizophrenia. I. Pursuit learning”, J. Pers., 1948, 17, 5274.Google Scholar
Iidem , “Learning capacity in schizophrenia with special reference to the concept of deterioration”, Amer. J. Psychiat., 1949, 105, 881888.CrossRefGoogle Scholar
Kent, Grace H., “Experiments on habit formation in dementia praecox”, Psychol. Rev., 1911, 18, 375410.CrossRefGoogle Scholar
Kessell, Rose, “An investigation into some of the factors affecting speed of response in psychiatric patients with special reference to distraction”, Unpublished Ph.D. Thesis, University of London, 1955.Google Scholar
King, H. E., Psychomotor aspects of mental disease. An experimental study, 1954. Cambridge, Mass.: Harvard University Press.CrossRefGoogle Scholar
Nelson, Elizabeth H., “An experimental investigation of intellectual speed and power in mental disorders”, Unpublished Ph.D. Thesis, University of London, 1953.Google Scholar
Ogilvie, B. C., “A study of intellectual slowness in schizophrenia”, Unpublished Ph.D. Thesis, University of London, 1954.Google Scholar
Shakow, D., “The nature of schizophrenic deterioration”, Nerv. ment. Dis. Monogr., 1946, No. 70.Google Scholar
Venables, P. H., and Tizard, J., “Performance of functional psychotics on a repetitive task”, J. abnorm. soc. Psychol., 1956, 53, 2326.CrossRefGoogle Scholar
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