• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.5
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• pp.3579-3586
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• 2015

In this study, EEG, HRV, and Vibra image were compared and analyzed in the environmental test room due to stimulation of aroma and color temperature. The condition of the environmental test room was in temperature $25[^{\circ}C]$, relative humidity 50[RH%], air current speed 0.02[m/s] and illuminance 1000[lux] with setting up different sensory stimulation condition which are before exposure, single-sensory stimulation of Jasmine scent, single-sensory stimulation of RED color lighting, and multi-sensory stimulation of Jasmine scent and RED color lighting. The result of this study, at multi-sensory stimulation of Jasmine scent and RED color lighting, relative $S{\alpha}$ wave, SEF50, $SMR/{\theta}$ and SDNN were revitalized, and both sides ${\alpha}$ wave asymmetry index, stress index, fatigue degree, and HRT were decreased. Also, Viba image of tension/anxiety and stress were declined. Therefore multi-sensory stimulation of Jasmine scent and RED color lighting effects to increase the Neuro-energy like amenity, productivity of work efficiency, and concentration.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.1
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• pp.615-621
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• 2018

To enhance the energy saving and comfort of indoors, this study performed a stimulation of sound fluctuation, color temperature, and aroma. The experiment with EEG, HRV, and Vibra images was conducted in an environmental test room with a temperature of $25[^{\circ}C]$, relative humidity of 50[RH%], air current speed of 0.002[m/s], and illuminance of 1000[lux]. The stimulation experiment set up different sensory stimulation conditions, such as before exposure, single-sensory stimulation of fluctuation a=1.106 jazz music, single-sensory stimulation of RED color lighting, single-sensory stimulation of scent aroma, and multi-sensory stimulation of fluctuation a=1.106 jazz music, RED color lighting, and scent aroma. After the multi-sensory stimulation of fluctuation a=1.106 jazz music, RED color lighting and scent aroma, the capacity for work and attention were increased, and the stress index and fatigue degree were decreased. In addition, multi-sensory stimulation of fluctuation a=1.106 jazz music, RED color lighting, and scent aroma were effective in maintaining a stable heart and health. In addition, the Vibra image appeared to decrease tension/anxiety and stress. The multi-sensory stimulation of fluctuation a=1.106 jazz music, RED color lighting, and scent aroma help increase the Neuro-energy more than that by no exposure and single-sensory stimulation.

• The Journal of Korean society of community based occupational therapy
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• v.6 no.2
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• pp.1-10
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• 2016

Objective : The purpose of this study was to examine the effect of multi-sensory stimulation training on cognitive function and balance skill of the community resident elderly. Methods : 10 participants who is over aged 65 years carry out multisensory stimulation training program for 12weeks, once a week for 60minutes. The multisensory stimulation training program is consisted of total 12 topic based on body schema, gross muscle and tactile stimulation. The result was measured using Mini-Mental State Examination-Korean and Berg Balance Scale to evaluate before and after of cognitive function and balance skill. And after intervention, the satisfaction of the program was investigated. Wilcoxon matched-pair signed rank test was used to compare pre- post difference of cognitive function and balance skill. Results : There was significant difference in cognitive function and balance skill(p<.05) and the satisfaction is positive at the end of the program. Conclusion : The multisensory stimulation training program has positive effects on cognitive function and balance skill for elderly. And the satisfaction is positive at the end of the program. The multisensory stimulation training program can enhance the satisfaction to elderly in the aging society. So, additional studies is needed for efficient use.

• The Journal of Korean Physical Therapy
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• v.6 no.1
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• pp.171-183
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• 1994

Purphose. This present study examines the effect of brief, intense transcutaneous electrical nerve stimulation(BTENS) on sensory nerve conduction, electrical pain threshold, and two-point discrimination measured at the superficial radial nevre distribution in 20 healthy subjects. Subjects. Twenty volunteercs, (10 females and 10 males(age range : 20-38 years : $mean{\pm}SD\;:\;27.00{\pm}5.12$), only subjects without prior traumatological and pathological were eligible to participated in this study. Methods. Nerve conduction were determined for the right superficial radial nerve. Electrical pain threshold were determined for the right wrist ipsilateral to the site of BTENS. Small disc electrodes were attached to the surface of the skin stradding the end of the radius. Square wave electrical pulses were delivered from an isolated stimulator through a constant current device at a frequency of 2 Hz(5 ms pulse width). Two-point discrimination, measured on the sensory distribution of superficial radial nerve. BTENS was delivered using a Max-SD( Medical design co.) portable battery powered stimulator. A cicular Ag/AgCl electrode in contact with hypertonic saline gel was attached to the lateral(radial side) surface of the forearm. Results. No significant effects were observed between stimulation methods in the prestimulation cycle(multi-way ANOVA repeated measures : distal latency ; F1.14=0.332. amplitude ; F 0.80=0.445, pain threshold ; F0.06=0.940.2 point discrimination ; F1.50=0.236). Highly significant effects were observed time with the pretreatment and 6 posttreatment cycles(p<0.01). Mighty significants differences in nerve conduction and pain threshold were found using un multi-way ANOVA repeated measures among stimulation methods for each cycles(p<0.01). Conclusion and Discussion The authors concludes that both nerve conduction and pain threshold changes are associated with therapy (stimulation) level of BTENS.

• The Journal of the Korea Contents Association
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• v.17 no.6
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• pp.540-550
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• 2017

To investigate a variety of nonpharmacologic interventions have confirmed what the symptoms and effects, mainly interventions by acting on behavioral and psychological symptoms of dementia was conducted a meta-analysis. Data were collected from online search engines using search words from domestic and foreign article database. The researcher independently and among the pre-post experimental studies published from January 2000 to June 2016, recalled applying for the elderly with dementia presents the effect of treatment group and the control group RCT in this study were included in the study. The results of this meta-analysis showed that, effect size of the nonpharmacologic interventions of total -0.33, occupational therapy - 0.26, multi-sensory stimulation intervention -0.65 was significant beneficial effects to elderly with dementia(p<.05). According to interventions as a major affected the symptoms associated with behavioral problems, mainly aggression, memory-related problem behavior in the home-based program. Also, reminiscence therapy and occupational therapy is generally apathy, multi-sensory stimulation and music therapy was confirmed that there was a major change in behavior anxiety or agitation. The results of this study confirmed that various nonpharmacologic interventions were effective on behavioral psychological symptoms of dementia patients and confirmed the main symptoms of intervention.

• Journal of the Korean Society for Precision Engineering
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• v.29 no.7
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• pp.711-716
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• 2012

The purpose of this study was to investigate how the modulation method affects the effectiveness of eliciting tactile sensations by electrical stimulation. Two methods were employed and the results were compared and analyzed; pulse amplitude modulation (PAM) and pulse width modulation (PWM). Thirty-five healthy subjects participated in the experiments to measure the stimulation intensity that began to elicit a tactile sensation - activation threshold (AT). Constant-current monophasic rectangular pulse trains were employed, and the stimulation intensity was varied from zero until the subject felt any uncomfortable sensation. The step size of the stimulation intensity was 100nC/pulse. After each experiment, the subject described the sensation both quantitatively and qualitatively. The two modulation methods did not make a significant difference as far as the AT values were concerned, but most of the subjects showed 'intra-individual' consistency. Also, it was confirmed that our range of the stimulation parameters enabled us to obtain three major tactile sensations; tickling, pressure and vibration. The results suggested that the stimulation parameters and the modulation type should be selected for each individual and that selective electrical stimulation of the mechanoreceptors needs more diversified researches on the electrode design, multi-channel stimulation protocol, waveforms of the pulse train, etc.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 1999.03a
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• pp.261-264
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• 1999

복합 감각 자극하의 감성정보를 도출하기 위한 기초연구로서 시각과 청각자극에 따른 주관적 평가 및 생리신호를 계측하였다. 심리적 평가와 생리신호 계측으로 단일 자극에 더하여 동적, 정적감성의 심화를 유도하는 결과를 보였고, 부가된 자극을 반영하는 생리신호로 HRV가 유용함을 발견하였다.

• Journal of the Korean housing association
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• v.19 no.4
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• pp.79-87
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• 2008

Snoezelen, multi-sensory stimulation, provides stimulation through the visual, aural, tactile, olfactory, gustatory and proprioceptive senses. Its aim is to be a relaxing, feeling of safety, novelty and stimulation with no expectations for performance. Agitated behavior of people with dementia causes significant problems and distress for cares. The objective of this research study was to test the effects of Snoezelen room on physical and verbal agitated behaviors of people with dementia. Four patients participated five sessions in Snoezelen room of 'F' dementia care facility in Sweden. Assessment instrument was basically used Cohen-Mansfield Agitation Inventory-Short Form to be rated by caregivers on a 5-point frequency scale. Pre-trial and post-trial assessments were carried out during $27^{th}$ Aug.-$27^{th}$ Sept. 2007. Result shows that Snoezelen room has some short-term positive effect on agitated behavior even though there was a considerable variation individuals responded. This result adds to the increasing evidence that Snoezelen could be a therapeutic environment for the elderly with dementia. Further research study, with larger number of participation, and a control group is required to establish more scientific evidence of Snoezelen effects on health outcome.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.701-702
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• 2021

The purpose of the study was to identify fiber changes induced by electrical stimulation of a certain neural substrate in the rat brain. In the stimulation group, the peripheral nerve was injured and the brain area associated to inhibit sensory information was electrically stimulated. There were sham and sham stimulation groups as controls. Then high-field diffusion tensor imaging (DTI) was acquired. 35 features were taken from the DTI measures from 7 different brain pathways. To compare the efficacy of the classification for 3 animal groups, the linear regression analysis (LDA) and the machine learning technique (MLP) were applied. It was found that the testing accuracy by MLP was about 77%, but that of accuracy by LDA was much higher than MLP. In conclusion, machine learning algorithm could be used to identify and predict the changes of the brain white matter in some situations. The limits of this study will be discussed.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2003.11a
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• pp.1361-1365
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• 2003

본 연구에서는 슈트용 직물의 촉각 자극 시 나타나는 감성 특성을 파악하고, 이를 바탕으로 직물의 스치는 소리가 공감각적 감성변화에 어떠한 영향을 미치는지를 분석하기 위해 물리적 평가 및 주관적 평가를 실시하였다. 피험자 20명을 대상으로 직물의 촉감을 평가하게 한 후, 그 직물의 스치는 소리를 제시하여 감각과 감성을 평가하도록 하였다. 복합자극으로는 직물별 tm치는 소리와 촉감을 동시에 제시하여 때 감성을 평가하였다. 실험결과 촉감에 대한 감성차원으로는 '심미성'과 '개성'의 두 가지 요인이 나타났고, 소리에 대한 감성차원으로는 '심미성'과 '고급감', '개성'의 세 가지 요인이 도출되었다. 심미성을 유발하는 촉각성 요인으로는 'pliable'과 'cool', 개성을 유발하는 촉감성 요인으로 'smooth'와 'cool'로 나타났다. 청각자극에 의한 감성은 'loudness'가 가장 큰 영향을 미쳤다. 촉감자극에 의한 직물 별 소리 자극을 부가하였을 경우 직물 소리의 물리량에 따라 심미성 요인에서 감성의 상승 및 하강 효과를 발견할 수 있었다.