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Dried Blood Spot Collection of Health Biomarkers to Maximize Participation in Population Studies
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Raphael Gabiazon1, Jasmine Wright2, Samantha Marshall2

  • 1Schulich School of Medicine & Dentistry, London, ON, Canada.

Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 25, 2025
PubMed
Summary
This summary is machine-generated.

Metamemory influences recognition in older adults with mild cognitive impairment (MCI). Understanding memory beliefs may improve Alzheimer's disease (AD) risk assessment and management.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Gerontology

Background:

  • Mild cognitive impairment (MCI) in older adults is linked to accelerated memory decline and increased Alzheimer's disease (AD) susceptibility.
  • Associative memory deficits are prominent in MCI, potentially reflecting broader item-processing impairments.
  • Metamemory, or beliefs about one's own memory, may influence memory performance in MCI, but its specific role and neural underpinnings are not fully understood.

Purpose of the Study:

  • To investigate the impact of metamemory beliefs on item- and associative-level recognition in individuals with MCI.
  • To explore the neural correlates associated with metamemory's influence on memory recognition in MCI using functional magnetic resonance imaging (fMRI).

Main Methods:

  • A cross-sectional fMRI study involving 28 participants with MCI (aged 60-80).
  • Participants completed metamemory assessments using the Multifactorial Memory Questionnaire (MMQ).
  • An fMRI associative memory task assessed recognition of faces, places, and face-place pairs, measuring behavioral performance (d' and reaction time).

Main Results:

  • fMRI analysis revealed brain activation in the intracalcarine cortex, occipital pole, lingual gyrus, and lateral occipital cortex.
  • Higher recognition accuracy for places correlated with faster reaction times for faces, places, and face-place pairs.
  • Metamemory satisfaction positively correlated with self-appraised ability but negatively with reported strategies and occipital pole activation. Lower self-reported strategy use was paradoxically linked to better performance in MCI participants.

Conclusions:

  • Metamemory significantly affects recognition performance and neural activity in individuals with MCI, particularly impacting associative memory.
  • Findings suggest that metamemory assessments could enhance diagnostic accuracy and aid in managing AD risk.
  • The study highlights the complex interplay between memory beliefs, performance, and neural function in MCI.