Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-31T14:51:18.306Z Has data issue: false hasContentIssue false
  • English
  • Français

Estimation of Premorbid Intelligence in Organic Conditions

Published online by Cambridge University Press:  02 January 2018

J. R. Crawford ,
D. M. Parker  and
J. A. O. Besson
J. R. Crawford*
Affiliation:
Department of Psychology
D. M. Parker
Affiliation:
Department of Psychology
J. A. O. Besson
Affiliation:
Department of Mental Health, University of Aberdeen, Aberdeen
*
∗Department of Psychology, University of Aberdeen, Aberdeen, UK
Get access Rights & Permissions [Opens in a new window]

Abstract

The validity of premorbid IQ estimates provided by the National Adult Reading Test (NART) and Vocabulary sub-test of the Wechsler Adult Intelligence Scale were evaluated, by comparison with matched, healthy control subjects, in Korsakoff psychosis, alcoholic dementia, dementia Alzheimer type (DAT), multi-infarct dementia (MID), Huntington's disease, and closed head injury (CHI). There was no significant difference in NART performance between control subjects and the alcoholic dementia, DAT, MID, and CHI groups. Although there appeared to be a decline in NART performance in the Korsakoff and Huntington's groups, it did provide a significantly higher IQ estimate than the Vocabulary sub-test. All clinical groups, with the exception of the CHI group, performed at a significantly lower level than the control group on the Vocabulary sub-test.

Type
Research Article
Information
The British Journal of Psychiatry , Volume 153 , Issue 2 , August 1988 , pp. 178 - 181
Copyright
Copyright © Royal College of Psychiatrists, 1988 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

American Psychiatric Association (1980) Diagnostic and Statistical Manual of Mental Disorders (3rd cdn) (DSM–III). Washington, DC:APA.Google Scholar
Crawford, J. R., Besson, J. A. O., Parker, D.M., Sutherland, K. M. & Keen, P. L. (1987) Estimation of premorbid intellectual level in depression. British Journal of Clinical Psychology, 26, 313–314.Google Scholar
Glen, A. I. M. & Christie, J. E. (1979) Early diagnosis of Alzheimer's disease: working definitions for clinical and laboratory criteria. In Alzheimer's disease: Early Recognition of Potentially Reversible Deficits (eds Glen, A. I. M. & Whalley, L. J.). Edinburgh: Churchill Livingstone.Google Scholar
Hachinski, V. C., Lliff, L. D. & Zilhka, E. (1975) Cerebral blood flow in dementia. Archives of Neurology, 32, 632–637.Google Scholar
Hart, S., Smith, D. M. & Swash, M. (1986) Assessing intellectual deterioration. British Journal of Clinical Psychology, 25, 119–124.Google Scholar
Lezak, M. M. (1983) Neuropsychological Assessment (2nd edn). New York: Oxford University Press.Google Scholar
McManus, I. C. (1983) Review of The Alcoholic Brain by Maria, A. Ron. Psychological Medicine, 13, 923–924.Google Scholar
Nebes, R. D., Martin, D. C. & Horn, L. C. (1984) Sparing of semantic memory in Alzheimer's disease. Journal of Abnormal Psychology, 93, 321–330.Google Scholar
Nelson, H. E. (1982) National Adult Reading Test. Test Manual. Windsor:NFER-Nelson.Google Scholar
Nelson, H. E. & O'Connell, A. (1978) Dementia: the estimation of ∗premorbid intelligence levels using the new adult reading test. Cortex, 14, 234–244.Google Scholar
Nelson, H. E. & McKenna, P. (1975) The use of current reading ability in the assessment of dementia. British Journal of Social and Clinical Psychology, 14, 259–267.Google Scholar
Ron, M. A. (1983) The alcoholic brain: CT scan and psychological findings. Psychological Medicine, Monograph Supplement 3. Cambridge: Cambridge University Press.Google Scholar
Rosen, W. A., Terry, R. D., Fuld, P. A., Katzman, R. & Peck, A. (1980) Pathological verification of ischaemic score in differentiation of dementias. Annals of Neurology, 7, 486–488.Google Scholar
Sharp, P. F., Gemmell, H. G., Besson, J. A. O., Crawford, J. R., Cherryman, G. W., & Smith, F. W. (1986) The application of 123-I isopropyl amphetamine imaging to the study of dementia. Journal of Nuclear Medicine, 27, 761–768.Google Scholar
Wechsler, D. (1955) Manual for the Wechsler Adult Intelligence Scale. New York: Psychological Corporation.Google Scholar
Submit a response

eLetters

No eLetters have been published for this article.