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Kim Harin,Park Kee Jeong,Shin Yong-Wook,Lee Jung Sun,Chung Seockhoon,Lee Taeyeop,Kim Min-Jae,Jung Jiwon,Lee Jina,Yum Mi-Sun,Lee Beom Hee,Koh Kyung-Nam,Ko Tae-Sung,Lim Eunyoung,Lee Jung Soo,Lee Jee Yeo 대한의학회 2020 Journal of Korean medical science Vol.35 No.28
Quarantine often provokes negative psychological consequences. Thus, we aimed to identify the psychological and behavioral responses and stressors of caregivers quarantined with young patients after a close contact to a coronavirus disease 2019 case at a children's hospital. More than 90% of the caregivers reported feelings of worry and nervousness, while some of them reported suicidal ideations (4.2%), and/or homicidal ideations (1.4%). Fear of infection of the patient (91.7%) and/or oneself (86.1%) were most frequently reported stressors. A multidisciplinary team including infection control team, pediatrician, psychiatrist, nursing staff and legal department provided supplies and services to reduce caregiver's psychological distress. Psychotropic medication was needed in five (6.9%), one of whom was admitted to the psychiatry department due to suicidality. Quarantine at a children's hospital makes notable psychological impacts on the caregivers and a multidisciplinary approach is required.
Lee Taeyeop,Lee Joohee,Kim Harin,Park C. Hyung Keun,Park Jangho,Kim Hyo-Won,Akça Ömer Faruk,Chung Seockhoon 대한의학회 2022 Journal of Korean medical science Vol.37 No.17
Background: The aim of this study is to explore whether high school students’ adherence to physical distancing was associated with health beliefs, social norms, and psychological factors during the coronavirus disease 2019 (COVID-19) pandemic. Methods: Overall, 300 high school students participated in this anonymous online survey conducted from October 18–24, 2021. The survey included rating scales such as attitude toward physical distancing during the pandemic, Stress and Anxiety to Viral Epidemics-6 items (SAVE-6), Patient Health Questionnaire-9 items, Satisfaction with Life Scale, and Connor Davidson Resilience Scale 2-items. Results: The results revealed that perceived susceptibility or severity (β = −0.13, P = 0.038), perceived benefit (β = 0.32, P < 0.001), descriptive social norms (β = 0.10, P = 0.041), social injunctive norms (β = 0.19, P < 0.001), and SAVE-6 (β = 0.24, P < 0.001) predicted students’ adherence to physical distancing (adjusted R2 = 0.42, F = 19.2, P < 0.001). Social injunctive norms and personal injunctive norms directly influenced adherence to physical distancing. Viral anxiety, measured by SAVE-6, mediated the association between social injunctive norms and adherence to physical distancing, and perceived benefits mediated the relationship between personal injunctive norms and adherence to physical distancing. The influence of perceived susceptibility or severity on adherence to physical distancing was entirely mediated by perceived benefits or viral anxiety. Conclusion: Explaining the rationale or benefits of physical distancing may be important in increasing adherence to physical distancing among high school students.
Taeyeop Lee,Seonok Kim,Jichul Kim,Kee Jeong Park,Hyo-Won Kim 대한신경정신의학회 2022 PSYCHIATRY INVESTIGATION Vol.19 No.12
Objective Mobile-based cognitive training programs can be a viable alternative to in-person interventions, but their efficacies have not been established yet. In this study, we examined the efficacy of DoBrain, a mobile-based cognitive training program designed for children with developmental disabilities (DDs), in comparison with general educational apps named Junior Naver and Kakao Kids. Methods Children aged 34 to 77 months were recruited and randomized at a 1:1 ratio to use DoBrain or general educational apps. Each group used the assigned app on a daily basis at home for 30 minutes for 24 weeks. Parents were instructed to help the children with the app usage. A total of 166 children completed the post-test visit (DoBrain group, n=85, 55.4±8.7 months old; general educational app group, n=81, 53.7±9.9 months old). The primary outcome was cognitive development measured by Psychoeducational Profile-Revised (PEP-R), administered at baseline and at post-test. Results DoBrain had no superior effect over general educational apps on the PEP-R Developmental Quotient. When the changes before and after app usage were compared, the DoBrain group and the general educational app group both showed declines in imitation (adjusted p=0.049 and 0.022), perception (adjusted p=0.004 and <0.001), and gross motor (adjusted p=0.003 and 0.002) domains of the PEP-R. Among the DoBrain group, children with DD showed a significantly greater gain in the eye-hand coordination domain of PEP-R compared with those without DD (adjusted p=0.047). Conclusion DoBrain did not show a superior effect over general educational apps on overall cognitive development in preschool children, regardless of the presence of DD. Careful monitoring of the negative effect of mobile-based cognitive training programs is necessary
Predictors of Developmental Outcome in 4- to 6-Year-Olds With Developmental Disability
Lee Taeyeop,Park Kee Jeong,Shon Seung-Hyun,Kim Seonok,Kim Hyo-Won 대한신경정신의학회 2022 PSYCHIATRY INVESTIGATION Vol.19 No.7
Objective Studies on the early trajectories of developmental disability (DD) are limited. This study aimed to evaluate the diagnostic stability and developmental trajectories of autism spectrum disorder (ASD) and intellectual disability (ID), and to determine baseline clinical characteristics that affect future diagnosis.Methods We analyzed 192 children who were referred for possible DD through retrospective chart review. Clinical diagnosis was assessed once at baseline, aged 2–4, and at follow-up, aged 4–6. The participants’ developmental profiles were measured by Psychoeducational Profile-Revised (PEP-R), Vineland Social Maturity Scale (VSMS), Beery-Buktenica Developmental Test of Visual Motor Integration (VMI), and Childhood Autism Rating Scale (CARS).Results On comparing the diagnostic change, 5% of children were no longer diagnosed as ASD, and 13% of children were no longer diagnosed as ID at follow-up. Trajectories of developmental profiles were compared between children with and without ID at follow-up, and significant time-by-group interaction were observed in PEP-R (p<0.001), VSMS (p<0.001), and VMI (p=0.003) scores, indicating that children without ID at follow-up showed significant improvement over time compared to children with ID. ASD diagnosis (p<0.001) and CARS score (p=0.007) at baseline were significantly associated with ASD at follow-up, while VSMS score (p=0.004) and VMI score (p=0.019) at baseline were significantly associated with ID at follow-up.Conclusion A subset of children lost their diagnosis at follow-up, and such diagnostic change was significantly more common in ID compared to ASD. Baseline autism symptomatology was related to ASD at follow-up, and baseline adaptive and visuo-motor function was related to ID at follow-up.
Sangbong Lee,Donggeon Lee,Myungjun Kim,Taeyeop Kang,이수용,Jungsun Park 한국항공우주학회 2018 International Journal of Aeronautical and Space Sc Vol.19 No.4
Many materials used for industrial, architectural or logistics systems are exposed to various environmental factors such as temperature, humidity and solar radiation. In particular, solar radiation is a primary concern regardless of weather or season. It causes changes in mechanical properties, the generation of cracks in concrete, color fading in clothing and plastic, and so on. This paper demonstrates some of these effects. To do this, the authors used an artificial solar radiation test apparatus to examine epoxy polymer specimens. The apparatus included a number of metal halide and infrared lamps, which simulated natural solar radiation as per US military testing standards (MIL-STD-810G). 18 specimens were manufactured based on the ASTM-D638 testing method. They were then divided into three groups with six specimens each. Each group was exposed to artificial solar radiation for 28 days, 56 days and 84 days, respectively. To identify the color shift in each specimen, digital images for each specimen group before and after the solar radiation test were obtained prior to the tensile test. The R, G and B values were subsequently extracted from these digital images using MATLAB and used to calculate the total color shift between the two specimen states (before and after the solar radiation test) following linear and non-linear formulas. Finally, the authors proposed a method of predicting the extent of the decline in maximum tensile strength. This method employed four mathematical correlation relationships between the maximum tensile strength and the total color shift.