• Sleep Medicine and Psychophysiology
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• v.11 no.1
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• pp.44-49
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• 2004

Objectives: The purpose of this study was to investigate whether longitudinal changes in positive and negative symptoms affect cognitive functioning in chronic schizophrenia. Methods: Sixty-eight patients diagnosed with DSM-IV schizophrenia were examined on two occasions over 6 months for symptoms and cognitive changes. Symptoms were measured by PANSS. Cognitive functions were examined for sustained attention, executive function, concentration and attention, and verbal memory and learning using Degraded Stimulus Continuous Performance Test, Wisconsin Card Sorting Test, Digit Span, and Rey Auditory Verbal Learning Test, respectively. Twenty control subjects were assessed to compare the cognitive scores of remitted schizophrenic patients. Results: Patients showed significant improvement in symptoms and all cognitive tests after 6 months treatments. Significant improvements in positive and negative symptoms did not predict improvements in any aspect of cognitive functioning measured. Normal controls performed significantly better than remitted schizophrenic patients on all cognitive tests. The results show no relationship between change in symptoms and change in cognition in chronic schizophrenia. Conclusion: We suggest that symptomatic and cognitive impairment may be a distinct construct. These findings highlight the importance of treating cognitive impairment in addition to the clinical symptoms of schizophrenia.

• Journal of Advanced Technology Convergence
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• v.1 no.2
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• pp.69-73
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• 2022

The purpose of this study was to identify the influencing factors of subjective health status among the subjects of the 7th year 3 (2018) National Health and Nutrition Examination Survey, and to help provide programs for improving subjective health status in the future. Data from the 7th Korea National Health and Nutrition Examination Survey(2018) were used. Variables were age, gender, age, subjective health status, subjective body shape recognition, weight change over the past year, usual stress level, walking days per week, and strength training days per week. The higher the number of walking days per week, the lower the usual stress perception level. As the number of strength training days per week increased, the level of stress perception was lower (p<.001). The subjects' subjective health status was found to have a negative effect on their usual stress perception (β=-.759), subjective body shape (β=.111), age (β=.421), and number of days walking per week. (β=.968). Based on this study, it is intended to provide basic data for preparing programs to help improve stress perception and subjective health status in the future.

• Journal of the Korean Society for Library and Information Science
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• v.32 no.2
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• pp.77-96
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• 1998

Attitude of librarian's Job satisfaction was shown differently by individual characteristic, personality, and cognitive structure in the same circumstance. This means that it is related to the personal psychological difference and subjective thinking. The purpose of this study is to analyze the psychological difference of libraians, especially their Cognitive style and to know what acts the difference and effect in Job satisfaction. The methodology of the study is a suvey of 160 librarians in 11 academic libraries at Pusan. The results are as fellows. In General, they were satisfied with ph than the normal level ane the most dissatisfied with promotion. They had no difference of Cognitive style with a demographic characteristics, had a similar difference with job satisfation, and the older and the higher position peoples were satisfied with thou ph. Cognitive style firly effect at the ph satisfation. Field dependence librarians are more satisfied with their job than field independence librarians. Field independence librarians are oppropriate to technical Services and field dependence librarians are more oppropriate for public services. In conclusion, they demonstrated that it Is very important to consider each psychological difference with cognitive style.

• 한국노년학
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• v.36 no.3
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• pp.633-648
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• 2016

This study focuses on the sleep pattern of the elderly people living in the community and its relationship to the occurrences of the depression and deterioration of the cognitive function. Our primary data is the raw data gathered by the Korean Ministry of Health and Welfare in 2008 in the National Senior Living Conditions and Well-being Needs Assessment Survey. The survey contained data from 12,087 people over 65 years of age living in the community. We have used the secondary data analysis method on this raw data to see if there exists correlation between age, gender, soundness of the sleep, total sleep time and the depression and the cognitive difficulties. Our study finds that the older a person is, the more trouble she has in sleeping. It also shows that too much sleep (in excess of 9 hours) and too little sleep (less than 6 hours) can both be linked to more occurrence of depression. Lack of restful sleep could also be linked to more frequent occurrence of depression and cognitive difficulties. Changes in the sleep pattern is not always pathological in elderly people. However, our study shows that it is important the primary health-care givers understand the role of sleep in elderly person's daily life. They should examine the elderly person's sleep pattern focusing on the quantity and the quality of sleep and develop programs suited for individuals to prevent and intervene sleep disorder.

• Korean Journal of Child Studies
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• v.25 no.5
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• pp.193-208
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• 2004

This study purported to empirically examine joy expression and its cognitive and social contexts in children's play. The following question was asked: 1) What kind(s) of emotional expression(s) can be considered as a defining feature of play? 2) What cognitive/social play contexts are associated with joy expression. 30 children aged 3, 4, and 5 years were observed in terms of the length of each emotional expression at play/nonplay, and at cognitive/social play categories. The findings of this study showed that regardless of children's age and gender only joy expression could be considered as a defining feature of play, and that R&T play and chase games, or associative and cooperative social play were strongly related to joy expression. The findings were discussed in reference with existing assertions and perspectives, emphasizing the importance of joy expression in defining children's play despite of the predominance of interest expression in play. The findings were also discussed in reference with metacommunication functions and social construction of joy, considering cognitive/social contexts of joy. Implications for play researchers and practitioners were described in terms of developing playful learning strategies for childhood. Limitations of this study, and suggestions for further research were also provided.

• Journal of the Korean Applied Science and Technology
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• v.40 no.4
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• pp.660-673
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• 2023

The purpose of this study was to understand the degree of early recognition of myocardial infarction in adult smokers and to analyze factors related to cognition. In a descriptive survey using raw data from the 2021 Community Health Survey, 210,899 out of 229,942 people who completed the survey, excluding 18,343 subjects with insufficient responses, were selected as study subjects. Age, marital status, education level, smoking cessation plan, health examination_cancer examination, diabetes diagnosis, subjective health level, and social physical environment were significantly related to early symptoms of myocardial infarction. Based on the results of the study, active promotion and education for high-risk groups with a high risk of developing myocardial infarction are needed.

• Korean Journal of Cognitive Science
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• v.29 no.1
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• pp.1-16
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• 2018

In this study, we investigated age differences of preference and trust ratings when the appearance of an artificial intelligent speaker resembles a human face. The appearance of the artificial intelligent speaker was presented in seven levels from robot face to human face. In addition, face stimuli were divided into gender (male and female) and age (20s / 60s). Participants evaluated the reliability and likability of each face stimulus on a 7-point scale. The results show that younger adults tend to prefer the face that was halfway between the robot and the human face, while older adults evaluated that the perceived reliability and likability were higher when the stimuli resembled the human face. When asked to choose the most preferred of the four face categories, all participants chose a younger face. However, with additional conditions including emoticon face and empty condition, older adults still preferred human face, while younger adults preferred emoticon face and empty condition. Taken together, older adults are more receptive to human faces than robotic faces in the context of artificial intelligence speakers. Because artificial intelligent speakers can play an important role in the elderly living alone, the present study will be a good reference in the design and development of artificial intelligent speakers for the elderly users.

• Journal of The Korean Association of Information Education
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• v.18 no.4
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• pp.559-566
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• 2014

This is to understand the neurological dynamic cognitive processes of math learning based on the abstract mappings( level A2), abstract systems(level A3), and single principles(level A4), which are principles of Fischer's cognitive development theory. Math learning requires flexibility to adapt existing brain function in selecting new neurophysiological activities to learn desired knowledge. This study suggests a general statistical framework for the identification of neurological patterns in different abstract learning change with optimal support. We expected that functional brain networks derived from a simple math learning would change dynamically during the supportive learning associated with different abstract levels. Task based patterns of the brain structure and function on representations of underlying connectivity suggests the possible prediction for the success of the supportive learning.

• Proceedings of the Korean Society for Cognitive Science Conference
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• 2002.05a
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• pp.211-215
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• 2002

본 실험은 종합적 인지과정을 추론할 수 있는 결합 문제(binding problem)를 언어적인지 과정을 통해 알아 본 실험으로, 총 10 명(남:61여:4, 평균나이:24.40 $\pm$ 1.35)의 정상군을 대상으로, 4개의 음소로 이루어진 단음절 명사를 목표 자극(target stimulus)으로 하고, 4개 음소의 임의적인 조합으로서 글자를 이루지 못하는 비목표 자극(non-target stimulus)을, 각각 200 회와 800 회씩 시각적으로 0.5초씩 무작위로 제시하여 128 채널 고밀도 사건관련전위(ERP)를 측정하였다. 이번 실험 결과의 주요 특징은 글자가 아닌 비목표 자극보다 글자인 목표 자극에서 두드러지게 나타난 두정엽 부근의 P500 과 N900 이라고 할 수 있다. 자극 제시 비율의 차이에서 오는 oddball 효과로 인한 기존 P300 의 인지적 의미를 이번 결과의 P500 이 함축한다고 볼 수 있으며, 단음절 단어를 인지할 때, 글자임을 인식하는 순간은 의미적인지 과정이 진행되었다기보다 그 글자의 형태만으로 낯익은 글자인지를 분간하는 것으로 보인다 따라서, 이 경우 기존 언어 실험에 자주 등장하던 의미론적 peak 인 N400 은 보이지 않고, 곧바로 형태적이고, 통사적(syntactic)인 인지 처리 과정인 P500이 나타났다고 해석할 수 있다. 하지만, 이번 실험에서는 N400 대신에 N900 이 나타났다. 이 결과는 이번 ERP 실험과 병행된 프로토콜 분석을 통해, 피험자가 자극 제시 후, 약 900ms 정도에, 이미 제시되고 사라진 글자 자극을 다시 한번 떠올리는 인지 과정이 일어난다는 점과 관련 지어 해석하면, 기존에 의미적(semantic) 인지 과정으로만 해석했던 negative-peak 를 생각(thinking)과 같은 내재적인지 과정(internal cognitive process)으로 확장하여 일반화하는 추론도 생각해 볼 수 있다. 요컨대, 언어인지를 통한 이번 실험을 통해, 뇌파에서 검출되는 negative-peak 은 internal cognitive process로 추측되고, positive-peak 는 external cognitive process 라고 생각된다. 덧붙여, 유의해서 볼 점은 각 peak-topology 에서 Cz 의 진폭이 Fz 보다 크게 나온 점과, 일반적으로 언어 기능을 담당한다는 좌측 측두엽(T7)이 우측(T8)보다 통계적으로 더 유의미한 차이를 보였다는 점등이다.

• Proceedings of the KAIS Fall Conference
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• 2010.05b
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• pp.749-754
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• 2010

본 연구는 환자들의 진단용 방사선피폭 인식에 대한 관련 요인을 분석하여, 환자들의 방사선 피폭에 대한 인식의 변화를 위한 교육 자료를 만드는데 기초자료로 제공하기 위함이다. 1. 방사선에 대한 인지도에 영향을 미치는 요인으로는 방사선 유해성 인지도, 방사선 피폭방지 인지도, 학력, 방사선검사 경험, 방사선 피폭에 대한 설명을 들은 경험, 방사선 지식도로 나타났다. 2. 방사선의 유해성에 대한 인지도에 영상을 미치는 요인으로는 방사선의 인지도, 성별, 직업, 방사선 검사 경험, 방사선 검사의 종류, 방사선 피폭의 두려움 정도와 방사선 검사 후 향후 이상의 걱정으로 나타났다. 3. 방사선의 필요성에 대한 인지도에 영향을 미치는 요인으로는 방사선 유해성 인지도, 방사선 피폭방지 인지도, 성별, 직업, 가구 월 소득, 방사선 검사의 종류, 방사선 피폭에 대한 설명을 들은 경험, 방사선 지식도, 방사선 검사 후 향후 이상의 걱정으로 나타났다. 4. 방사선 피폭방지에 대한 인지도에 영향을 미치는 요인으로는 방사선 인지도, 방사선의 필요성 인지도, 성별, 나이, 직업, 가구 월 소득, 방사선 검사의 종류, 방사선 피폭에 대한 설명을 들은 경험, 방사선 지식도로 나타났다. 본 연구를 통하여 본 결과 환자들은 방사선 피폭에 대해서 너무 민감하게 반응하고 있으며 그 원인이 방사선에 대한 무지에 있음이 드러났다. 그러므로 환자들로 하여금 진단용 방사선 피폭에 대하여 올바르게 인식을 할 수 있도록 돕는 교육 프로그램의 개발이 시급하며, 방사선사들에게는 환자의 피폭선량 경감을 위한 세심한 배려가 필요하다고 하겠다. 환자들 또한 진단용 방사선에 대하여 올바로 인식하는 것이 촬영 시 정신적인 피해를 줄일 수 있으며, 방사선 피폭을 줄일 수 있을 것이다.