• Journal of Digital Convergence
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• v.14 no.2
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• pp.415-426
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• 2016

The purpose of this study is to explore the effects of ACT on smartphone addiction level, self-control, and anxiety of college students with smartphone addiction. 320 college students who lived in Chonbuk completed SAPS-A. 42 students who gained more than 40 points score by SAPS-A completed SCRS, STAI, and AAQ-16 as pre-treatment. Final 18 participants were randomly assigned to 9 in the ACT group and 9 in control group. ACT program was administered for 8 sessions, follow-up study was conducted at the end of treatment and at 4 weeks follow-up periods. The results of this study were as follows: Smartphone addiction and anxiety levels of ACT group were significantly reduced and maintained until the follow-up. Self-control and Acceptance-action levels were significantly increased and maintained until the follow-up. It has been confirmed that ACT had an effect on smartphone addiction treatment, anxiety decrease and self-control ability improving, therefore, based on this result, further research will be needed to apply the ACT on smartphone addiction treatment in families, school, local community, etc.

• Journal of Digital Contents Society
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• v.16 no.3
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• pp.483-492
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• 2015

This thesis analysis the CARBO 3000 that is one of a $CO_2$ infuser and improve its effectiveness. The thesis designs H/W and S/W that controls the $CO_2$ infusing mass compared to the CARBO 3000. Specially the designed H/W has a newly CPU, LCD, a flow velocity controller, a solenoid valve and a flow sensor. Also the designed S/W is composed of GUI and the algorithm to control the $CO_2$ infusing mass. The designed and implemented the $CO_2$ Infuser in this thesis is tested for the performance. The commercial measuring sensor is used for the test. The testing results say that the designed and implemented the $CO_2$ Infuser in this thesis is much more accurate compared to the CARBO 3000 on $CO_2$ infusing.

• Journal of Digital Convergence
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• v.13 no.2
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• pp.381-391
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• 2015

The purpose of this study was to investigate the trends in research on the effects of virtual reality technology applied to rehabilitation for disabled. I have collected 60 papers published in Korea(2000-2014), and analyzed it by the P.I.C.O. method. As a result, adults and the elderly are most common subjects, and projection type has been used frequently in researches. It were included mostly balance, upper extremity function, and gait that the dependent variables represents the intervention effects. I interpreted it as the ICF factors. So, research topics were the most common mobility, in contrast to educational, vocational, recreational area as dealing with the participation area is very small. In the future, we should focused on social aspects for useful intervention in real life of people with disabilities based on virtual reality technology, and virtual reality technology should be easy to apply in terms of cost and accessibility.

• Journal of Digital Convergence
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• v.13 no.3
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• pp.295-304
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• 2015

We assessed reading-related skills in children with reading comprehension difficulties ("Poor comprehenders"), word decoding difficulties ("Poor decoders") and normal readers, matched for age and nonverbal IQ. The reading-related skill tests used in our study are phonological processing, visual processing test, and receptive vocabulary test. The authors argue that children who had difficulty in reading comprehension had lower scores only on the phonological short-term memory test compared with normal readers, although their performance on receptive vocabulary and visual processing tests are comparable to normal readers. The results of our study revealed that poor decoders had lower scores on the phonological processing, visual processing, and receptive vocabulary tests.

• Journal of Digital Convergence
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• v.14 no.3
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• pp.299-307
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• 2016

This Convergence study aimed to investigate the effects of changing brainwave neurofeedback training on life stress and depression in female college students. Twenty-six of the subjects were selected into the experimental group and the control group respectively intervention for 8 weeks, the following results were obtained. First, experimental group and control group presented statistical significant difference before and after intervention on life stress, and life stress in experimental group was statistical significantly decreased than control group. Second, experimental group and control group presented statistical significant difference before and after intervention on depression, and depression in experimental group was statistically significantly decreased than control group. The results obtained from this study expect us that applying the neurofeedback training for the decrease of life stress and depression, has a positive effect.

• Journal of Digital Convergence
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• v.14 no.6
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• pp.527-533
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• 2016

This study was conducted to investigate the apraxia affects activitys of daily living. 38 patients with stroke were participated and conducted to both Birminham Cognitive Screen(BCoS) apraxia test and K-MBI for ADL. Using a cutoff score of BCoS apraxia test, all patient was determine whether with apraxia or not and were distinguished by various types of apraxia. They were compared to the level of ADL using ANOVA. Apraxia patients 18, patients without apraxia is 20. The difference of ADL between the two groups was not. However, the result of classifying patients with apraxia subtypes, it showed a significant difference in grooming, eating, toileting, step, bowel control, and bladder control(F=4.431~9.193, p<0.05). As apraxia is cause of a negative effect on ADL, expert in the area to manage stroke patients should have to share information about whether apraxia is or not and make policy and treatment program considering the potential problem in ADL.

• Journal of Digital Convergence
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• v.14 no.11
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• pp.639-644
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• 2016

The purpose of this study is to determine the effect of the light-emitting-diode (LED) to investigate proliferation of human epidermal keratinocyte and collagen, procollagen expression. In order to determine whether LED irradiation can safely be applied to human skin, the proliferative effects of LED irradiation were determined by MTS assay in Human Epidermal Keratinocytes. Wavelength of 470nm LED irradiation increased mRNA expression of collagen, procollagen without cytotoxity. Our results suggest that 470nm LED irradiation may have a proliferative effects and collagen synthesis property. In order to determine whether LED irradiation can safely be applied to human skin, the cytotoxic effects of LED irradiation were determined by MTS assay in Human Dermal Fibroblasts (HDF). As far as we know, this is the first report demonstrating in vitro collagen synthesis activity of 470nm LED irradiation and being a scientific basis for the cosmetic.

• Journal of Digital Convergence
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• v.15 no.12
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• pp.661-667
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• 2017

The purpose of this study is to examine the effects of therapeutic horse riding on adult with intellectual disability in terms of adaptive behavior. The subjects were 16 adults with intellectual disability. They participated in a therapeutic horse riding program of 60 minutes long, Twice a week for 12 weeks. The participants' adaptive behavior level were measured before and after 12 weeks of program with Social Maturity Scale. The data was analyzed by paired t-test using the SPSS. After 12 weeks of therapeutic horse riding program, there was a significant improvements on self-help, task, self-regulation & socialization. However, locomotion, communication changes did not reach statistical significance. The result indicates that therapeutic horse riding has a positive effect on adults with intellectual disability in self-help, task, self-regulation & socialization. This study suggests that therapeutic horse riding could be considered an effective method on adults with intellectual disability to improve adaptive behavior.

• Journal of Digital Convergence
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• v.13 no.7
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• pp.293-304
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• 2015

Meta-analysis was conducted to examine effects of computer based virtual reality on clinical rehabilitation in Korea. The data were analyzed as the ICF categorizations. The papers used in this study were located through domestic data search engines. The fifteen studies were selected among the studies published between 1995 and 2014. The PEDro score was used for qualitative assessment. The sample size and the average and standard deviations of pre and post tests were analyzed through a meta-analysis. The PEDro scores of the selected studies were 6 points higher and 338 participants were involved. The effect size of combined data was 1.030, activities and participation 1.120, sensory function 1.199 as indicated by a "large effect size" and the effect size of mental function was 0.557 as indicated by a "medium effect size." As a result, virtual reality program as a adjunctive therapeutic methods has proven the effect. In particular, the effects were demonstrated in activities and participation, sensory function. However there was no evidence of the effectiveness of mental function.

• Journal of Digital Convergence
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• v.13 no.7
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• pp.437-444
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• 2015

The aim of this study is to investigate influential factors for depression with respect to mental health in the elderly and present the groups in order to develop intervention strategies with human for the prevention of depression and suicide. For this purpose, this study held interviews using a questionnaire targeting normal elderly above the age of 65 who did not use social welfare services living in Seoul, Gyonggi and Jeonnam. The data collected was analysed with the use of a frequency test, a descriptive statistical analysis, a correlation analysis and a multi-regression analysis. The results of the study show that the influence of psychological factors in the subjects on their depression was significant. That is, Depending on your type of psychological factors of family influences the sense of difference of melancholy. Second, the influence of material factors of the subjects on their depression was significant depending on their family type. That is, the influence of material factors in the elderly on their depression differed depending on family type.