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Updated: Jun 4, 2026

Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder
04:33

Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder

Published on: April 26, 2024

The complex relationship between depression and dementia.

Krishna Prasad Muliyala1, Mathew Varghese

  • 1Geriatric Clinic and Services, National Institute of Mental Health and Neurosciences, Bangalore, India.

Annals of Indian Academy of Neurology
|March 4, 2011
PubMed
Summary
This summary is machine-generated.

Late-onset depression and dementia are common in the elderly, with depression potentially being a risk factor or early sign of dementia. The complex relationship between these conditions requires further investigation.

Keywords:
Alzheimer’s diseasedementiadepressiongeriatricvascular dementia

Related Experiment Videos

Last Updated: Jun 4, 2026

Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder
04:33

Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder

Published on: April 26, 2024

Area of Science:

  • Neuroscience
  • Geriatrics
  • Psychiatry

Background:

  • Dementia and depression are prevalent in elderly neuropsychiatric patients.
  • Late-onset depression frequently co-occurs with cognitive impairment.
  • The prevalence of depression in dementia ranges widely (9-68%).

Purpose of the Study:

  • To review the complex relationship between dementia and depression.
  • To cover definitions, epidemiology, and treatment of these conditions.
  • To highlight emerging biomarkers and underlying mechanisms.

Main Methods:

  • Selective literature review.
  • Analysis of epidemiological data.
  • Discussion of methodological issues.

Main Results:

  • Depression is proposed as both a risk factor and prodrome for dementia.
  • Significant overlap exists between cognitive impairment and depression in the elderly.
  • The relationship's underlying mechanisms and methodological challenges are complex.

Conclusions:

  • The relationship between dementia and depression is not fully understood.
  • Further research is needed to clarify the causal links and therapeutic targets.
  • Emerging biomarkers may offer new insights into the dementia-depression connection.