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Related Concept Videos

Dementia l: Introduction01:22

Dementia l: Introduction

Dementia is an acquired, progressive syndrome characterized by a decline in multiple cognitive domains severe enough to impair daily functioning and reduce independence. Although memory loss is a central feature, the diagnosis requires additional deficits involving language, executive function, visuospatial skills, judgment, calculation, or abstract reasoning. These cognitive impairments reflect underlying neurodegenerative or vascular processes that gradually disrupt neuronal networks...
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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Related Experiment Video

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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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Predicting estimates of premorbid memory functioning: validation in a dementia sample.

Kevin Duff1, Gordon J Chelune, Kathryn Dennett

  • 1Center for Alzheimer's Care, Imaging and Research, Department of Neurology, University of Utah, Salt Lake City, 84108, USA. kevin.duff@hsc.utah.edu

Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists
|October 26, 2011
PubMed
Summary
This summary is machine-generated.

Estimating premorbid memory functioning using established formulae revealed significant memory decline in older adults attending a dementia clinic. These findings suggest the formulae can help clinicians track memory changes over time.

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Area of Science:

  • Gerontology
  • Neuropsychology
  • Cognitive Science

Background:

  • Formulae for estimating premorbid memory functioning were developed in cognitively intact older adults.
  • Previous validation included a small sample of patients with amnestic Mild Cognitive Impairment.
  • Further validation in diverse clinical populations is necessary.

Purpose of the Study:

  • To apply and validate existing formulae for estimating premorbid memory functioning.
  • To compare estimated premorbid memory with current memory abilities in a large dementia clinic sample.
  • To assess the clinical utility of these formulae for tracking memory decline in older patients.

Main Methods:

  • Utilized formulae designed to estimate premorbid memory functioning.
  • Applied these formulae to a sample of 1,059 patients referred to a dementia clinic.
  • Compared estimated premorbid memory scores with current memory performance.

Main Results:

  • Observed large and statistically significant differences between estimated premorbid and current memory scores.
  • Premorbid memory estimates consistently exceeded current memory abilities in the sample.
  • The findings indicate a notable decline in memory functioning within this clinical population.

Conclusions:

  • The formulae for estimating premorbid memory functioning show potential for clinical application in dementia clinics.
  • These estimates may assist clinicians in identifying and quantifying memory changes over time in older adults.
  • While requiring cautious clinical interpretation, the formulae offer a valuable tool for assessing longitudinal memory changes.