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Related Concept Videos

Dementia01:30

Dementia

Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual.
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Self-Discrepancy Theory02:45

Self-Discrepancy Theory

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Self-Discrepancy and Its Effects

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Related Experiment Video

Updated: May 13, 2026

Using Retinal Imaging to Study Dementia
09:17

Using Retinal Imaging to Study Dementia

Published on: November 6, 2017

Does self-rated health predict dementia?

Philip St John1, Patrick Montgomery

  • 1Section of Geriatrics, University of Manitoba, Winnipeg, Manitoba, Canada. pstjohn@hsc.mb.ca

Journal of Geriatric Psychiatry and Neurology
|March 5, 2013
PubMed
Summary
This summary is machine-generated.

Self-rated health predicts dementia in cognitively intact older adults but not in those with cognitive impairment. This study highlights the prognostic value of perceived health in aging populations.

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The 4 Mountains Test: A Short Test of Spatial Memory with High Sensitivity for the Diagnosis of Pre-dementia Alzheimer's Disease
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Last Updated: May 13, 2026

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The 4 Mountains Test: A Short Test of Spatial Memory with High Sensitivity for the Diagnosis of Pre-dementia Alzheimer's Disease

Published on: October 13, 2016

Area of Science:

  • Gerontology
  • Neurology
  • Public Health

Background:

  • Self-rated health (SRH) is a subjective measure of an individual's overall health perception.
  • Cognitive impairment, no dementia (CIND) represents a transitional stage between normal aging and dementia.
  • Predictive markers for cognitive decline are crucial for early intervention strategies in older adults.

Purpose of the Study:

  • To investigate the predictive power of SRH for dementia development over five years in cognitively intact older adults and those with CIND.
  • To compare the predictive accuracy of age-referenced (AR) versus unreferenced SRH measures.
  • To explore the association between SRH and adverse health outcomes, including dementia and mortality.

Main Methods:

  • A prospective cohort study followed 1468 cognitively intact adults and 94 older adults with CIND (aged 65+).
  • Data collected included demographics, cognitive status, functional status, depressive symptoms, and SRH (both referenced and unreferenced).
  • Dementia diagnosis was based on clinical examination; CIND was diagnosed for individuals with abnormal cognition not meeting dementia criteria.

Main Results:

  • In cognitively intact individuals, poor SRH was associated with significantly higher rates of dementia and death compared to good SRH (p<0.001).
  • Multinomial regression confirmed SRH as a predictor of dementia and mortality in the cognitively intact group.
  • In contrast, SRH did not significantly predict dementia or death in the CIND group (p=0.30).
  • Analyses using age-referenced SRH yielded similar findings.

Conclusions:

  • Self-rated health serves as a significant predictor of dementia incidence in older adults who are cognitively intact.
  • The predictive value of SRH for dementia is not evident in older adults already diagnosed with Cognitive Impairment, No Dementia (CIND).
  • These findings underscore the importance of perceived health status as a prognostic indicator in aging populations, particularly in the absence of pre-existing cognitive impairment.