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Related Concept Videos

Longitudinal Research02:20

Longitudinal Research

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Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
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Alzheimer's Disease: Overview01:26

Alzheimer's Disease: Overview

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Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
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Aging01:26

Aging

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Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
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Alzheimer's Disease: Treatment01:22

Alzheimer's Disease: Treatment

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Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
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Longitudinal Studies01:26

Longitudinal Studies

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Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
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Dementia01:30

Dementia

96
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

Updated: Jun 5, 2025

Methodology for Establishing a Community-Wide Life Laboratory for Capturing Unobtrusive and Continuous Remote Activity and Health Data
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The African American Dementia and Aging Project: an Oregon-based longitudinal study.

Allison Lindauer1,2, Raina Croff1,2, Kevin Duff1,2

  • 1Department of Neurology, Oregon Health and Science University, Portland, OR, United States.

Frontiers in Dementia
|December 4, 2024
PubMed
Summary

The African American Dementia and Aging Project (AADAPt) studied aging and cognition in African American older adults. Findings reveal both dementia risk factors and protective social engagement in this underrepresented group.

Keywords:
African Americandementialongitudinalobservational studyrisk factors

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Area of Science:

  • Gerontology
  • Neuroscience
  • Public Health

Background:

  • Most aging, cognition, and dementia research excludes minority populations.
  • There is a critical need to understand the unique experiences of African American older adults in aging and cognitive health.

Purpose of the Study:

  • To describe the design and baseline characteristics of the African American Dementia and Aging Project (AADAPt).
  • To explore aging and cognition in African American older adults in Oregon.

Main Methods:

  • Longitudinal study design involving 177 African American older adults.
  • Annual data collection on cognitive, physical, and social functioning since 2000.

Main Results:

  • Participants exhibited dementia risk factors like hypertension and hyperlipidemia.
  • High levels of social engagement were reported as a protective factor.

Conclusions:

  • The AADAPt study provides crucial insights into the aging and cognitive health of African Americans.
  • Findings underscore the importance of including underrepresented groups in aging research for greater inclusivity.