Use of IQ-Adjusted Norms to Predict Progressive Cognitive Decline in Highly Intelligent Older Individuals.
- 1 January 2004
- journal article
- research article
- Published by American Psychological Association (APA) in Neuropsychology
- Vol. 18 (1) , 38-49
- https://doi.org/10.1037/0894-4105.18.1.38
Abstract
Identifying high-functioning older individuals in preclinical phases of Alzheimer's disease (AD) may require more sensitive methods than the standard approach. The authors explored the utility of adjusting for premorbid intelligence to predict progressive cognitive decline or Mild Cognitive Impairment (MCI) in 42 highly intelligent older individuals. When scores were adjusted for baseline IQ, 9 participants had executive impairments, 11 had memory impairments, and 22 scored in the normal range. None were impaired according to standard age norms. Three and a half years later, 9 participants with IQ-adjusted memory impairment declined in naming, visuospatial functioning, and memory; 6 convened to MCI. Three participants with normal memory declined. Implications for using IQ-adjusted norms to predict preclinical AD are discussed.Keywords
This publication has 87 references indexed in Scilit:
- Education-Specific normative data on common neuropsy-chological indices for individuals older than 75 YearsThe Clinical Neuropsychologist, 1996
- Development and validation of a demographic correction system for neuropsychological measures used in the Canadian study of health and agingJournal of Clinical and Experimental Neuropsychology, 1996
- Neuropsychological tests' norms above age 55: COWAT, BNT, MAE token, WRAT-R reading, AMNART, STROOP, TMT, and JLOThe Clinical Neuropsychologist, 1996
- Predictors of cognitive and functional progression in patients with probable Alzheimer's diseaseNeurology, 1992
- A screening procedure for estimating premorbid intelligence in the elderlyThe Clinical Neuropsychologist, 1992
- Evaluation of intellectual and memory function among dementia patients who were intellectually superiorThe Clinical Neuropsychologist, 1990
- Object-memory evaluation for prospective detection of dementia in normal functioning elderly: Predictive and normative dataJournal of Clinical and Experimental Neuropsychology, 1990
- Criteria for diagnosing age‐associated memory impairment: Proposed improvements from the fieldDevelopmental Neuropsychology, 1989
- Age‐associated memory impairment: Proposed diagnostic criteria and measures of clinical change — report of a national institute of mental health work groupDevelopmental Neuropsychology, 1986
- Development and validation of a geriatric depression screening scale: A preliminary reportJournal of Psychiatric Research, 1982