• International Journal of Advanced Culture Technology
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• 제9권1호
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• pp.79-88
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• 2021

This study was a cross-sectional descriptive investigative study to analyze the effects of sub-factors of cognitive emotional control on life goals. The subjects of the study were 184 people in their 20s, and they were collected online from December 2020 to January 5, 2021 using structured cognitive control capabilities and life goal questionnaires. The collected data were performed using SPSS 18.0 for Frequency, Independent Sample t-test, Pearson correction analysis, Simple regression analysis, and Multiple regression analysis. According to the study, men had both life-oriented and achievement-oriented life goals higher than women. Among the sub-factors of cognitive emotional control (positive focus change, positive reassessment, expansion of view, re-accept plan, acceptance, rumination, self-criticism, others criticism, and destruction) were male and female were higher in self-criticism. Factors affecting life-oriented life goals have been shown to be expanding views, re-accepting plans, and criticizing others, while positive re-evaluation negatively affects achievement-oriented life goals. Based on these results, life-oriented life-goals tend to exhibit adaptive responses to expand views and revise plans and maladaptive responses to blame others, while achievement-oriented life-goals have the ability to positively reassess situations, modify plans and accept negative reactions.

• Human Ecology Research
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• 제56권2호
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• pp.133-144
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• 2018

The study examined the longitudinal relations of preschool children's peer interaction, linguistic and cognitive abilities, and self-control, while taking into account gender differences. The study was conducted with 671 preschoolers from the $5^{th}$, $6^{th}$, and $7^{th}$ wave of the Korean Children and Youth Panel Study (KCYPS). Data were analyzed by means of basic descriptive statistics, Pearson's correlations, and structural equation modeling analysis. Bootstrapping method was also used to determine the significance of indirect effects. The analysis were conducted to find the longitudinal effects of peer interaction at the age of 4 on their self-control at the age of 6, and the mediating effects of linguistics and cognitive abilities at the age of 5 on its associations. The results indicated gender differences among the variables. According to multi-group analysis, there was a significant influence of 4 years' peer interaction on subsequent 5 years' linguistic and cognitive abilities but also on 6 years' self-control across time for boys; however, no significant direct effect of peer interaction on self-control was found for girls. Based on the findings of this study, it can be implied that it is necessary to apply different methods for boys and girls to promote self-control from the influence of peer interaction and linguistic and cognitive abilities.

• 인지과학
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• 제28권4호
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• pp.245-265
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• 2017

최근 인지적 통제에 대한 연구들은 최적의 통제 수준이 보상과 비용에 의해 결정된다는 것을 밝혀냈다. 보상이 가지는 가치는 주관적이며 이에 따라 최적의 신호 강도도 달라진다. 우리는 인지적 통제에 대한 노화의 영향에 대한 연구 결과들이 비일관적인 이유가 노인이 탄력적으로 통제 신호를 조절한 결과일 수 있다고 보았다. 다시 말해, 노인은 최적의 통제 수준을 결정하는 능력을 잘 유지하고 있을 수 있는데, 이는 전대상회의 역할로 알려져 있다. 반면 인지적 통제에서 노화에 따른 기능의 감퇴는 주로 규칙 표상의 유지와 억제에서 나타나는데, 이는 주로 외측전전두피질이 담당하고 있다. 본 연구는 청년과 노인에게 보상의 유형을 조절한 Go-Nogo 과제를 수행하게 하여 각 보상 조건에서 행동결과와 ERN(Error-Related Negativity) 크기를 비교하였다. 두 집단 모두는 각 연령에게 가장 중요하다고 여겨지는 조건에서 가장 뛰어난 행동 수행과 가장 큰 ERN 크기를 나타내었다. 또한 노인은 d'과 정확률에서는 연령차를 나타내었으나 ERN의 크기에서는 연령차를 나타내지 않았다. 이와 같은 결과는 인지적 통제의 각 과정에 대한 노화의 영향이 상이할 수 있을 가능성을 보여준다.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2007년도 추계학술대회 및 정기총회
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• pp.464-468
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• 2007

In cognitive radio systems, secondary users, unlicensed users, can use primary users' spectrum to increase spectrum efficiency. At that time, the systems must satisfy primary users' QoS. When secondary users use cognitive radio systems, secondary users communication can be terminated, because of satisfying primary users' QoS. However, secondary users' communication terminating is not good for both secondary users and whole systems. So, cognitive radio systems need an efficient algorithm for secondary users of admission control and keeping connections. In this paper, we present an algorithm which consist of two part, admission control and connections control.

• Journal of information and communication convergence engineering
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• 제12권2호
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• pp.97-103
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• 2014

In spectrum sensing, there is a tradeoff between the probability of missed detection and the probability of a false alarm according to the value of the sensing threshold. Therefore, it is important to determine the sensing threshold suitable to the environment of cognitive radio networks. In this study, we consider a cognitive radio-based ad hoc network where secondary users directly communicate by using the same frequency band as the primary system and control their transmit power on the basis of the distance between them. First, we investigate a condition in which the primary and the secondary users can share the same frequency band without harmful interference from each other, and then, propose an algorithm that controls the sensing threshold dynamically on the basis of the transmit power of the secondary user. The analysis and simulation results show that the proposed sensing threshold control algorithm has low probabilities of both missed detection and a false alarm and thus, enables optimized spectrum sharing between the primary and the secondary systems.

• 성인간호학회지
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• 제28권6호
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• pp.691-700
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• 2016

Purpose: The aim of this study was to evaluate the effects of a computerized cognitive training on older adults affected by mild cognitive impairment (MCI) in terms of cognitive function, depression, self-esteem, and activities of daily living (ADL). Methods: This study used a non-equivalent control group non-synchronized design. A total of 53 older adults who reside in long-term care facilities were recruited, 26 subjects for an experimental group and 27 subjects for a control group. A computerized cognitive training was performed for 20~40 minutes/day, three days/week for ten weeks. Data were analyzed using SPSS/WIN 21.0 with $x^2$ test, Fisher's exact test, and t-test. Results: Scores of MMSE (t=3.30, p=.002), depression (t=-2.15, p=.036), and self-esteem (t=2.76, p=.008) were significantly better in the experimental group than the control group. However, the difference in ADL (t=-1.01, p=.316) was not significant between the two groups. Conclusion: These findings suggest that the computerized cognitive training can be used as an effective nursing intervention to improve cognitive function and self-esteem and lower depression among older adults with MCI.

• 한국치위생학회지
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• 제23권1호
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• pp.43-53
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• 2023

Objectives: We developed an integrated cognitive function improvement program comprising cognitive, emotional, and physical domains, and remotely applied it to middle-aged adults to investigate its effects on oral health, cognitive function, and mental health improvement. Methods: The experimental group underwent the program remotely, using the Zoom platform. A total of 24 participants were recruited and divided into 12 experimental and 12 control groups. The program comprised cognitive, emotional, and physical activities. The sessions lasted 90 min and were performed twice a week for 6 weeks from April to May 2022. Results: Cognitive function, arousal, physical, and mental stress were significantly improved in the experimental group after the intervention than at the baseline (p<0.05). Regarding oral health, tongue plaque decreased 1.34-fold (p<0.01) and saliva increased 1.04-fold (p<0.05) in the experimental group after the intervention than at the baseline. Moreover, the experimental group showed significant improvements in tongue plaque and saliva than the control group (p<0.05 for tongue plaque and p<0.01 for saliva). Regarding mental health, social support significantly increased 11.67-fold (p<0.05) in the experimental group than at the baseline. The experimental group also showed significantly improved social support than the control group (p<0.01). Conclusions: The non-face-to-face integrated cognitive function improvement program for middle-aged adults improved their cognitive function and oral and mental health. Based on these findings, this program may be a useful health program tool for middle-aged individuals.

• 한국엔터테인먼트산업학회논문지
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• 제15권1호
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• pp.229-236
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• 2021

본 연구의 목적은 작업기반 중재와 전산화인지치료의 결합 중재를 통해 뇌졸중 환자의 심리사회적 기능과 인지 기능 및 우울감에 어떠한 영향을 미치는지 알아보고자 하는 것이다. 뇌졸중 환자 23명을 실험집단 11명, 대조집단 12명으로 나누어 진행하였으며, 실험집단과 대조집단은 4주간, 30분씩의 CoTras를 받았으며, 실험집단의 추가적으로 CoTras 시작 이전에 30분간 작업기반 중재를 받았다. 총 4주간, 20회 진행되었다. 평가는 자기 효능감 척도, 스트레스 척도, 우울척도, 신경행동학적 인지 상태 검사를 사용하였다. 연구 결과, 실험집단은 자기 효능감과 스트레스, 우울의 개선에 대조집단보다 더 유의미한 개선을 나타냈으며, 인지 기능에서 실험집단은 대조집단과 작은 효과의 크기차이를 보였다. 본 연구를 근거로 뇌졸중 환자의 심리사회적 요인과 우울증, 인지 기능의 개선을 위해 CoTras와 함께 작업기반 중재가 동시에 수행되는 것을 활용할 수 있을 것이다.

• 근관절건강학회지
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• 제5권1호
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• pp.26-38
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• 1998

The effects of coping on physical and psychosocial adaptation in the 297 patients with rheumatoid arthritis were investigated. The coping methods were divided into compliance of medical regimens, self-control activities, and cognitive control. The effects of these coping methods was analyzed with stepwise regression. The physical adaptation is found to be significantly affected by cognitive control, self-control activities, and compliance of medical regimens in order Compliance of the medical regimens affects negatively the physical adaptation. And psychosocial adaptation is significantly affected by the cognitive control. The analysis of these results by illness duration showed the distinct differences. That is in the patients who experienced the disease less than 48 months, the physical and the psychosocial adaptation were significantly affected only by the cognitive control. But in the patients who experienced the disease more than 96 months, the physical and the psychosocial adaptation were significantly affected by self-control activities. Based upon these results, it is recommended that the nurses who care the newly diagnosed patients emphasize on the positive side of the state. And the patients who are diagnosed long ago need the nursing programs which teach and promote self-control activities. Also it is suggested that the results of compliance must be considered rather than as the result variable.

• 한국엔터테인먼트산업학회논문지
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• 제15권7호
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• pp.215-223
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• 2021

본 연구의 목적은 지역사회에 거주하고 있는 경도인지장애를 보이는 노인을 대상으로 한 컴퓨터 기반의 인지재활프로그램의 적용이 인지기능과 도구적 일상생활수행능력에 미치는 영향을 알아보고는 것이다. MCI 노인 22명을 실험군 11명, 대조군 11명으로 무작위 할당하여 진행하였으며, 총 10주간, 주 3회, 회기당 30분씩 실험군은 CoTras, 대조군은 전통적 인지 재활을 받았다. 중재 전후로 인지기능과 수단적 일상생활활동의 수행 능력애 대한 변화를 알아보기 위해 NCSE와 K-IADL을 사용하였다. 연구 결과, 실험군은 집중력과 기억력을 포함한 전반적인 인지기능과 수단적 일상생활활동의 수행능력의 향상을 보였다. 지역사회 경도인지장애 노인들을 대상으로 인지기능과 수단적 일상생활활동의 수행능력 증진을 위해 CoTras의 적용을 고려해 볼 수 있을 것이다.