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박태진,이관용 전남대학교 사회과학연구소 1990 현대사회과학연구 Vol.1 No.1
Memory measures are classified into two kinds of tasks : Explicit memory tests are those whose instructions make explicit reference to an prior learning episode and require conscious recollection of that experience, but implicit memory tests are those where instructions make no explicit reference to an learning episode and require no conscious recollection. Based on task comparison methodology examining interrelationships among different memory measures, a number of striking dissociations and similarities between implicit and explicit memory measures have been found and several theoretical accounts have been advanced to explain these phenomena. This article presents a historical survey and related areas concerning implicit memory, reviews the empirical findings of recent experimental researches, outlines several major theoretical views of implicit memory, and evaluates those theoretical positions.
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LPS로 자극된 RAW 264.7 세포에 대한 제주산 복분자 딸기 추출물의 항염증 효과
박태진,양경월,장성찬,김승영 한국생물공학회 2019 KSBB Journal Vol.34 No.3
Rubus coreabus Miquel are found in the southernpart of Korea and their fruits are known to have anticancer,antioxidant and anti-inflammatory properties. However, thesuppressive effect of Rubus coreanus Miquel stem and leafextract (RSL) on the expression of lipopolysaccharide (LPS) -induced inflammatory cytokines and mediators has not beenyet examined. So, we evaluated the anti-inflammatory effectof Rubus coreabus stem and leaf extract in LPS-stimulatedRAW264.7 cell. In this study, RSL inhibited the generation proinflammatorycytokines such as of nitric oxide (NO), prostaglandinE2 (PGE2), cyclooxygenase-2 (COX-2), inducibleNO synthase (iNOS) in a concentration dependent mannerwithout no observable toxicity in RAW 264.7 cells. Our resultsindicate that RSL could be a new source for the ingredients ofcosmetics and pharmaceuticals.
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박태진 한국인지및생물심리학회 2008 한국심리학회지 인지 및 생물 Vol.20 No.1
간격을 두고 반복(간격반복)되는 항목이 간격 없이 반복(집중반복)되는 항목보다 기억 수행이 우수한 간격효과 기저의 부호화 기전을 ERP 연구를 통해 밝히기 위해, 단어의 의도학습을 요구한 부호화단계에서 간격반복, 집중반복, 한번만 제시되는 비반복의 세 조건을 조작하고, 인출단계에서 재인-확신도 평정검사를 실시하였다. 재인-확신도 평정반응의 분석 결과, 확신-적중 반응에 있어 간격반복, 집중반복, 비반복 조건의 순으로 확신-적중율이 높았다. 부호화 도중 측정한 ERP의 시간창별 평균진폭을 분석한 결과, 집중반복 항목은 간격반복 항목과 비반복 항목에 비해 자극제시 후 초기(230-330ms)에는 평균진폭이 더 높았고 그 이후(330-540ms)에는 평균진폭이 더 낮았다. P300 정점의 진폭과 잠재기를 분석한 결과 집중반복 항목은 간격반복 항목과 비반복 항목에 비해 진폭이 더 낮았고 잠재기가 더 짧았다. 간격반복 항목은 자극 제시 후 230ms부터는 평균진폭, 전위 두피분포, P300 진폭과 잠재기에 있어 비반복 항목과 차이가 없었다. 이러한 결과는 간격효과가 부호화 도중 학습항목에 배당되는 주의량의 차이에 기인한다는 것을 보여주는데, 집중반복 항목이 새로운 항목이나 간격반복 항목에 비해 더 적은 양의 주의를 배당받기 때문에 결핍된 처리가 일어나서 간격반복 항목보다 기억 수행이 더 저조하다는 것을 시사한다. Memory for repeated items improves when presentations are spaced during study (spacing effect). To examine the neural mechanisms underlying the spacing effect, event-related potentials (ERPs) were recorded during intentional study phase of a recognition memory paradigm. During study, words were presented once (no repetition) or repeated immediately (massed repetition) or repeated after 6 intervening items (spaced repetition). Participants were then asked to do old/new and confident/no confident judgments. Confident-hit recognition was better for repeated items with delay than immediately repeated items. Mean amplitudes at 230-330ms interval were more positive for massed repetition compared to spaced and no repetition conditions, but mean amplitudes at 330-540ms interval were more positive for spaced and no repetition compared to massed repetition condition. P300 peak amplitudes were more positive for spaced and no repetition compared to massed repetition condition and P300 latencies were shorter for massed repetition compared to spaced and no repetition conditions. In terms of mean amplitudes of time intervals after 230ms, P300 peak amplitudes/latencies, and scalp distributions of potentials, no difference was found between spaced vs. no repetition conditions. These results show that smaller amount of attention is allocated to immediately repeated items than to repeated items with delay. Spacing effect could be explained by deficient processing of immediately repeated items.
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박태진,이우균,우수영,유성진,곽두안,Boutheina Stiti,Abdelhamid Khaldi,Xu Zhen,권태협 한국산림과학회 2011 Forest Science And Technology Vol.7 No.2
Understanding the patterns of land-cover change for biodiversity and ecology system function has been important in landscape ecology. The objective of this study was to analyze land-cover change in the Ain Snoussi area of northern Tunisia. Landsat MSS/4 and SPOT HRV/3 images were used for the analysis. To classify land-cover type into forest and non-forest area, pixel-based classification and maximum likelihood algorithm were applied to two imageries using supervised classification algorithm. After classification of images, each changed area was calculated. Thereby, analysis of distance roads and topographic factors such as elevation, slope, aspect, and Topographic Wetness Index (TWI) were performed. The results showed that the area changed into non-forest was slightly larger than that into forest. Moreover, most of the changed areas, approximately half of the total changed area, were distributed near the roads. In addition, the change from forest to non-forest area tends to have a negative and positive relationship respectively with elevation and slope. On the other hand, the change from non-forest to forest area showed the tendency to be negative in elevation, slope, and TWI. However, the slope aspect of study area did not have any particular relationship with change tendency. In conclusion, spatial pattern of land-cover change was influenced by the distance from roads and topographic characteristics of target area.
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Health & Beauty - 고달픈 직장인의 애환, 증후군으로 나타난다?
박태진,Park, Tae-Jin 한국건강관리협회 2015 건강소식 Vol.39 No.9
통계청이 발표한 2015년 4월 고용동향에 따르면 3월 기준 우리나라 청년 실업률은 10.2%로 외환 위기 이후 최고 수준을 기록했다. 하지만 취업에 성공한 직장인들이라도 마음 편하게 일하지는 못한다. 언제 떨어져 나갈지 모르는 심한 경쟁으로 인해 만성피로, 두통, 소화불량을 겪기도 하고 모든 것을 손에서 놓아 버리는 번아웃 증후군에 시달리기도 한다.
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