[Screening for Alzheimer's disease by assessing memory impairment]

Area of Science:

• Gerontology
• Neurology
• Cognitive Science

Background:

• Memory complaints are a frequent concern in aging populations.
• Differentiating between subjective memory complaints and objective memory pathology is clinically significant.
• Alzheimer's disease is currently diagnosed at the dementia stage, often years after initial pathological changes.

Purpose of the Study:

• To highlight the importance of identifying the pre-dementia phase of Alzheimer's disease.
• To underscore the clinical challenge in distinguishing normal age-related memory decline from early pathological processes.
• To emphasize the growing interest in early detection for potential therapeutic interventions.

Main Methods:

• This study is a review and conceptual analysis of existing literature.
• It synthesizes information on age-related memory changes and Alzheimer's disease progression.
• It discusses the diagnostic criteria and challenges in the pre-dementia phase.

Main Results:

• Subjective memory complaints are common but do not always indicate underlying pathology.
• A significant gap exists between the onset of Alzheimer's disease pathology and clinical diagnosis of dementia.
• The pre-dementia phase offers a critical window for early intervention.

Conclusions:

• Distinguishing memory complaints from pathology is essential for accurate diagnosis and management.
• Focusing on the pre-dementia phase of Alzheimer's disease is crucial for advancing treatment strategies.
• Early detection of cognitive decline holds promise for mitigating the impact of dementia.