• Therapeutic Science for Rehabilitation
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• v.9 no.4
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• pp.95-106
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• 2020

Objective : The purpose of this study was to systematically review sex differences in episodic memory. Methods : We searched previous studies published in all electronic databases between 2010 and 2019. The key terms used in the search were 'sex differences' or 'gender differences' and 'episodic memory' or 'autobiographical memory'. 8 studies were finally extracted for analysis. Results : The 8 studies had evidence levels of II (67.5%) and III (37.5%), which are quite high. Healthy younger adults or healthy adults were recruited to examine sex differences in episodic memory. Assessment methods for episodic memory were mainly divided into cognitive tasks or standardized tests using visual or auditory stimuli. Subjects were instructed to memorize the stimuli and asked to recall them after some time. Overall females outperformed male. In particular, there were significant sex differences in verbal episodic memory. In contrast, there was no significant sex difference in visual episodic memory. Conclusion : To identify sex differences in episodic memory, a variety of test methods were used in various ways. Overall, females showed higher episodic memory than males. These findings suggest a need for cognitive intervention considering sex differences in the clinic. In the future, episodic memory tests with high ecological validity should be conducted to investigate sex differences in episodic memory.

• Journal of the Korean Dietetic Association
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• v.17 no.1
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• pp.1-17
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• 2011

The purpose of this study is to assess dietary habits of the hazardous drinkers and the heavy episodic drinkers in Korean adults. The respondents consisted of 814 adults (415 male and 399 female) who are 20~69 years of age by random selection in partial area of Gyeonggi. A self-report questionnaire was used to cover questions regarding dietary habits, drinking behavior and physical activity. Total dietary habit scores in hazardous drinker group (63.25) was significantly lower than normal drinker group (68.61) in male respondents (P<0.001). Male hazardous drinker group less eat fruit (P<0.01), eat more processed food (P<0.01) than male normal drinker group. Female hazardous drinker group doesn't eat 3 meals a day than female normal drinker group. Total dietary habit scores in heavy episodic drinker group [occasional heavy episodic drinker (62.76), frequent heavy episodic drinker (63.77)] were significantly lower than abstainer group (69.16) in male respondents (P<0.001). Male heavy episodic drinker group less eat fruit (P<0.01), eats more processed food (P<0.01), salty food (P<0.001), sugary food (P<0.05), animal fat (P<0.01) and eats out often (P<0.01) than male abstainer group. Male heavy episodic drinker group significantly less apply nutrition knowledge to their life (P<0.05) and less exercise everyday-more than 1 hour (P<0.01) than male abstainer group. In drinking behavior index, AUDIT (alcohol use disorder identification test) score was negatively correlated with age (P<0.01). There was a positive correlation between dietary habits and physical activity (P<0.01) but there was negative correlation between dietary habits and AUDIT score (P<0.01). This study highlights that AUDIT score was negatively influenced dietary habits.

• The Journal of the Society of Korean Medicine Diagnostics
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• v.16 no.1
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• pp.35-44
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• 2012

Objectives The purpose of this study is to report the effect of oriental demonstration treatment for episodic vertigo of Meniere's disease. Meniere's Disease characterized by recurrent prostrating episodic vertigo, nausea, vomiting, sensory hearing loss, tinnitus, and a feeling of fullness in the ear associated with generalized dilation of the membranous labyrinth (endolymphatic hydrops). The cause of Meniere's disease is unknown, and the pathophysiology is poorly understood. Methods We experienced one case of Meniere's disease treated with Asian medical treatment, acupuncture and herbal medication. 64-year-old female patient was diagnosed with Meniere's disease by western medical doctor. Methods: Saam acupuncture Sojangjungkyuk applied to the patient. Results After treatment her episodic vertigo, nausea, vomiting and endolymphatic hydrops were decreased but the level of tinnitus it was not improved as much as other symptoms. Conclusions Saam Acupuncture of Asian medical treatment could be safe and effective.

• The Journal of Industrial Distribution & Business
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• v.12 no.5
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• pp.47-58
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• 2021

Purpose - Current research aimed at exploring the effect differences between the two types of processing product information such as the imagining and the considering on psychological product ownership which could influence the intent to purchase or use the product, and focused on identifying the interaction effects of activated memory information type and advertising information type on each of the information processing types. Research design, data, and methodology - This study divided the information processing types into imagining and considering, and the consumer's memories were divided into autobiographical or episodic and semantic memory. The advertising information was approached in each of event information being together with the product and product feature information. At empirical study, 2(two types of memory activation: episodic and semantic memory activation) ∗ 2(two types of advertising information: event-focused and product feature-focused advertising information) between-subjects design was used to make four types of questionnaire according to the type of experimental groups. Through the survey platform, 'questionnaire stars' of 'WeChat' in China, 219 questionnaire data were collected for empirical study. The structural equation model in AMOS 26 and Anova were used to verify hypotheses. Results - First, the ownership affected the usage intent positively. Second, the imagining did not affect the psychological ownership but did directly affect the usage intention, and the considering affected the ownership positively. Third, the episodic memory activation positively influenced the imagining and negatively affected the considering, whereas the semantic memory activation positively influenced the considering and negatively affected the imagining. Fourth, event-advertising information increased the effects of the activated episodic memory on the imagining, and feature-advertising information increased the effects of the activated semantic memory on the considering. Conclusions - marketers should develop and advertise their product-related event message to trigger the imaging that directly increase the intent to purchase or use their product, when consumers are under the activation of their episodic memory. And marketers should advertise their product feature-related message to trigger the considering that could induce consumers' ownership for their product to increase the intent to purchase or use their product, when they are under the activation of their semantic memory.

• Korean Journal of Cognitive Science
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• v.20 no.1
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• pp.79-107
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• 2009

Episodic memory, i.e. memorization of information within a spatiotemporal environment, is affected Alzheimer's disease(AD), but its impairment may also be occurred in the normal aging process. The purpose of this study is to analyze and evaluate memory in with Dementia of Alzheimer Type by examining their cognitive skills in episodic memory using the technique. This new method involves assessing the mental images the subject's own past in the mind like projected and movies. Three patients in the early stage of Dementia of Alzheimer Type, one with mild depression, and 2 healthy controls for comparison were asked to retrieve their episodic memory of the previous day, week, month, and a day testing day. The answers were then analyzed with regards to their specific features as emotional state, color, and time order. In the following day, the subjects were tasked to recall again the images they reproduced in the day's test order to observe of memory. Results showed that all 3 patients failed to arrange the retrieved images in time order and their images of the previous day were unclear in color and were stationary like photographs, even when they reproduced the mental images at much quantity as controls. patients could not remember particular events of yesterday, and only recalled the general occurrences of every day life. These results suggest that in the early stage of Dementia of Alzheimer Type, difficulties in the retrieval of recent episodic memory begin to primarily occur, and qualitative impairment happens earlier than quantitative.

• Therapeutic Science for Rehabilitation
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• v.10 no.1
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• pp.105-114
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• 2021

Objective : The purpose of this study was to identify and compare the sex differences in episodic memory and spatial cognition in healthy young adults. Methods : Forty-eight undergraduates (male=24, female=24) were assessed for sex differences using the visual stimuli episodic memory task and the virtual reality-based spatial cognition task. The accuracy rates (%) for the What, Where, and When conditions of the episodic memory task and the average distance error (cm) for 10 trials of the spatial cognition task were analyzed. Results : There were no significant sex differences between the three conditions. The male participants showed a significantly higher performance on the spatial cognition task than the female participants Conclusion : The results of this study indicated that the sex differences in episodic memory could be altered by the test methods. Although episodic memory and spatial cognition mainly depend on the hippocampus, the sex-related differences between the two functions were inconsistent, suggesting that these two functions are independent.

• Publications of The Korean Astronomical Society
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• v.27 no.4
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• pp.177-179
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• 2012

We present Spitzer IRS spectroscopy of $CO_2$ ice toward 19 young stellar objects (YSOs) with luminosity lower than $1L_{\odot}$. Pure $CO_2$ ice forms only at elevated temperatures, T > 20 K, and thus at higher luminosities. Current internal luminosities of YSOs with L < $1L_{\odot}$ do not provide such conditions out to radii of typical envelopes. Significant amounts of pure $CO_2$ ice would signify a higher past luminosity. We analyze $15.2{\mu}m$ $CO_2$ ice bending mode absorption lines in comparison to the laboratory data. We decompose pure $CO_2$ ice from 12 out of 19 young low luminosity sources. The presence of the pure $CO_2$ ice component indicates high dust temperature and hence high luminosity in the past. The sum of all the ice components (total $CO_2$ ice amount) can be explained by a long period of low luminosity stage between episodic accretion bursts as predicted in an episodic accretion scenario. Chemical modeling shows that the episodic accretion scenario explains the observed total $CO_2$ ice amount best.

• Asia Marketing Journal
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• v.22 no.4
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• pp.27-45
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• 2021

This study examines the effects of celebrity endorsed advertising from a new perspective of the prior research that emphasizes the matchup between the brand and the celebrity. Due to the recent sharing experiences of the celebrity and their fans on SNS, it is hypothesized that the shared stories would impact viewers' responses that are often expressed in their likes, dislikes, shares and comments on SNS. In this study, the episodic type of advertising is hypothesized to have more favorable and active responses from viewers than the typical celebrity image-focused ads would have. By crawling and analyzing viewers' responses on YouTube toward 12 BTS endorsed ads, the hypotheses are confirmed as higher ratio of likes, lower ratio of dislikes and significantly higher ratio of comments over both total views and total likes were found. For the rationale behind, total 1800 comments were categorized into 4 major content types such as attached, experiential, empathic and self-related ones that are all considered as important factors influencing the strong ad effect. The results showed that the episodic ads have marginally more emotional comments than the celeb image ads. The difference was only found in experiential and empathic responses but not in self-related responses. Contrary to the hypothesis, the comments expressing attachment were found more for the celebrity image-focused ads than the episodic ones. It does not seem to suggest that the celebrity image focused ads are better to capture viewers' attachment towards the celebrity and the ad endorsed, but that the episodic ads draw viewers into relatively deeper level of attachment such as empathy by perceiving the authenticity of the celebrity and the brand. In conclusion, the shared stories on SNS can be a factor in the match-up theory on celebrity endorsed ad effects.

• Dementia and Neurocognitive Disorders
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• v.22 no.4
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• pp.148-157
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• 2023

Background and Purpose: Episodic memory is a system that receives and stores information about temporally dated episodes and their interrelations. Our study aimed to investigate the relevance of episodic memory to time perception, with a specific focus on simultaneity/order judgment. Methods: Experiment 1 employed the simultaneity judgment task to discern differences in time perception between patients with mild cognitive impairment or dementia, and age-matched normals. A mathematical analysis capable of estimating subjects' time processing was utilized to identify the sensory and decisional components of temporal order and simultaneity judgment. Experiment 2 examined how differences in temporal perception relate to performance in temporal order memory, in which time delays play a critical role. Results: The temporal decision windows for both temporal order and simultaneity judgments exhibited marginal differences between patients with episodic memory impairment, and their healthy counterparts (p = 0.15, t(22) = 1.34). These temporal decision windows may be linked to the temporal separation of events in episodic memory (Pearson's ρ = -0.53, p = 0.05). Conclusions: Based on our findings, the frequency of visual events accumulated and encoded in the working memory system in the patients' and normal group appears to be approximately (5.7 and 11.2) Hz, respectively. According to the internal clock model, a lower frequency of event pulses tends to result in underestimation of event duration, which phenomenon might be linked to the observed time distortions in patients with dementia.

• The Bulletin of The Korean Astronomical Society
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• v.35 no.2
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• pp.67.1-67.1
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• 2010

최근 Spitzer에 의해 발견된 광도가 매우 낮은 원시성들(VeLLOs)은 일정 비율로 accretion이 일어난다는 가정을 바탕으로 하는 기존의 별생성 이론으로는 설명이 불가능하다. 이런 VeLLOs 뿐만 아니라, Spitzer Legacy Program인 c2d 팀에 의해 연구된 원시성들의 광도분포는 일정한 accretion rate을 가정하는 이론보다는 episodic accretion을 가정하는 모델에 의해 더 잘 설명되어질 수 있음이 보여졌다 (Dunham et al. 2010). Episodic accretion 모델은 아주 뜨거운 열적 상태를 포함하여 분자운내의 화학적 상태에 영향을 미치기 때문에, 얼음상태로 있는 분자들의 분포나 함량에 변화를 가져오리라 예상된다. 따라서 본 연구는 광도가 낮은 원시성들에 대해 AKARI 우주망원경을 이용하여 2.5-5 마이크론에서 나타나는 ice feature를 관측하고 분석함으로서 episodic accretion의 흔적을 찾고자 하였다.