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KMID : 1100220110100040125
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Dementia and Neurocognitive Disorders
2011 Volume.10 No. 4 p.125 ~ p.136
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Characteristics of Memory Complaints, Cognitive Function, and Emotion in Subjective Memory Impairment
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Song Min-Ji
Kang Yeon-Wook
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Abstract
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Background: The aim of present study was to investigate the characteristics of memory complaints, objective cognitive function, and emotion in the elderly diagnosed with Subjective Memory Impairment (SMI).
Methods: Thirty-one healthy elderly and 31 SMI participated in this study. Memory Functioning Questionnaire (MFQ) was given to examine the characteristics of memory complaints in SMI group. The Seoul Neuropsychological Screening Battery and other frontal lobe function tests were administered to evaluate the objective cognitive functions. The Short form of Geriatric Depression Scale and the Y form of State-Trait Anxiety Inventory were also given to explore the emotional characteristics.
Results: The SMI reported that their present memory is poorer than their past remote memory and they have more troubles in remembering the old events than the recent ones. It was found that the SMI use memory strategies less frequently compared to the control group, although they experience severe memory problems more frequently than the healthy elderly. Both the healthy control and SMI groups showed the normal range performance in objective cognitive tests, the SMI showed significantly lower performance in frontal lobe tests than the normal control. The SMI were found to have higher levels of depression but not anxiety. They were divided into two subgroups based on the levels of depression, the depressive SMI and non-depressive SMI groups. The depressive SMI showed lower performance in the objective cognitive tests measuring frontal lobe function than the non-depressive SMI.
Conclusions: The results provided rich information about the behavioral, cognitive, and emotional characteristics of SMI. They suggest that the clinical evaluation of SMI should include the assessments of emotional aspects and comprehensive cognitive functions, especially frontal lobe function, as well as the evaluation of memory.
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KEYWORD
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Subjective memory impairment, Memory complaints, Frontal lobe function, Depression, Memory strategy
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