|
KMID : 1151720180070020005
|
|
Journal of Korean Society of Cognitive Rehabilitation
2018 Volume.7 No. 2 p.5 ~ p.25
|
|
|
The Preliminary Study on Effects of Episodic Memory Training on Memory and Prefrontal Cortex Activation of the Elderly with Mild Dementia
|
|
Park Jin-Hyuck
Heo Seong-Joo
|
|
|
Abstract
|
|
|
Objective: The purpose of this study was to investigate effects of episodic memory training on memory and prefrontal cortex activation of the elderly with mild dementia.
Methods: One group pretest-posttest design was used to confirm the effects of episodic memory training. 16 older adults with mild dementia were trained using the task designed for episodic memory for about 1 hour per a session. A total of 16 sessions were conducted. The accuracy rate of episodic memory, the Seoul Verbal Learning Test-Elderly’s version (SVLT-E) scores, and the levels of oxy-hemoglobin in prefrontal cortex using functional near-infrared spectroscopy (fNIRS) were collected pre-and post-test. In addition, the subject’s accuracy rate of episodic memory during each session was recorded.
Result: As a result, there were statistically significant improvements in spatial memory and spatiotemporal memory but not in the rest of sub-elements of episodic memory. The SVLT-E scores were not significantly increased. The level of oxy-hemoglobin values were significantly increased only in the frontopolar cortex included in medial prefrontal cortex, but not in dorsolateral and ventrolateral prefrontal cortex included in lateral prefrontal cortex.
Conclusion: There were differences in the effects of episodic memory training depending on sub-elements of episodic memory. In addition, it was confirmed that verbal episodic memory test such as the SVLT-E had limitations in evaluating episodic memory of older adults with dementia. Interestingly, fNIRS only applied to prefrontal cortex was able to confirm the effects of episodic memory. The results of this study were significant in suggesting the alternative method and evidence for the assessment of training of episodic memory in the future.
|
|
|
KEYWORD
|
|
|
Dementia, Episodic memory, Near-infrared spectroscopy, Prefrontal cortex
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|