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Interactions between subjective memory complaint and objective cognitive deficit on memory performances.

Soowon Park1, Ji-Hye Lee2, Jiyeon Lee3

  • 1Department of Education, Sejong University, Seoul, 05006, Republic of Korea.

BMC Geriatrics
|November 1, 2019
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Summary

Subjective memory complaints (SMCs) in older adults interact with objective cognitive status. SMCs significantly impact memory performance in normal cognition but not in mild cognitive impairment.

Keywords:
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Area of Science:

  • Gerontology
  • Cognitive Neuroscience
  • Psychology

Background:

  • Subjective memory complaints (SMCs) are prevalent in older adults.
  • The relationship between subjective memory and objective cognitive function requires investigation.
  • Understanding this interaction is crucial for assessing cognitive health in aging populations.

Purpose of the Study:

  • To examine the interaction between subjective memory complaints (SMCs) and objective cognitive status.
  • To investigate how this interaction affects cognitive functions in older adults.
  • To determine if SMCs differentially impact memory performance based on cognitive status.

Main Methods:

  • A cohort of 219 individuals, including normal controls (NC) and mild cognitive impairment (MCI) patients, was studied.
  • Standardized clinical evaluations and neuropsychological assessments were performed.
  • The Subjective Memory Complaints Questionnaire and five cognitive tasks assessed memory, attention, fluency, and language.

Main Results:

  • Significant interactions were found between SMCs and cognitive status (NC, MCI) on memory performance.
  • Normal controls with SMCs exhibited lower verbal and visuospatial memory compared to NCs without SMCs.
  • No significant effect of SMCs on memory performance was observed in the MCI group.

Conclusions:

  • Subjective memory complaints interact with objective cognitive status in older adults.
  • The impact of SMCs on memory performance is dependent on an individual's objective cognitive state.
  • Interpreting SMCs requires consideration of the individual's overall cognitive function.