• Transactions of the Korean Society of Mechanical Engineers B
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• v.35 no.11
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• pp.1185-1190
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• 2011

The lower limb somatosensory deficit observed among peripheral neuropathy patients is partially related to the decline in their balance ability. In general, balance ability has been examined by measuring the postural response (i.e., action). However, body motion is induced by integrated multisensory cues (i.e., motion perception). In this study, we hypothesized that the reduced lower limb somatosensation might also lower motion perception. We induced lower limb sensory deficits through ischemia and then measured the cutaneous sensory sensitivity and directional motion perception. The sensory deficit was successfully induced, and it also lowered the motion perception. However, the center of pressure (COP) variation did not significantly change under the sensory deficit. This result implies that measuring motion perception could enable the detection of precursors of sensory deficits.

• The Journal of the Convergence on Culture Technology
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• v.6 no.4
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• pp.677-684
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• 2020

Our country is already in the aging corner and fall down is the elderly personal, social and economic problems are causing. therefore, executed this study for inquiring into an athletic effect for the balance ability increase that was a main variable of an fall down. The purpose of this study, to find the effect of balance training using visual feedback and somatosensory. Experimental group divided the three groups, objects measured balance ability of each experimental groups before experiment, the balance exercise group used visual feedback by Nintendo Wii(company - model), the balance exercise group used visual and TOGU, the balance exercise group used blind and TOGU. 4 experimental of each groups measured MFT and EMG value after training. having rest time, 4 experimental of each groups measured MFT and EMG value after training used balance pad. MFT - visual feedback with somatosensory training is most efficient but, indifferent both balance training with visual feedback and balance training with somatosensory. EMG - training with somatosensory is more efficient than training with visual feedback. Conclusion : in the process of improving equilibrium ability of patient who is lack of balance ability, somatosensory training is effective to correct different of left, right and frequency of left, right. visual feedback is the most effective way to improve dynamic balance sensory, so parallel of these two practice is thought to be the most effective.

• The Journal of Korean Academy of Sensory Integration
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• v.20 no.3
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• pp.1-13
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• 2022

Objective : The purpose of this study was to investigate changes in somato-sensory and occupational performance of individually tailored sensory integration interventions for school-age children with somatodyspraxia. Methods : A single subject study with an AB design was conducted the total sessions were 11 sessions, consisting of 3 baseline sessions and 8 intervention sessions. To compare the effects before and after the intervention, the intervention was measured by dividing it into Performance Area (PA) and Performance Factor (PF), and after each intervention session, the Goal Attainment Scale (GAS) was implemented. Results : The children participating in this study showed overall improvement in PA and PF after the intervention, and after each session, it was confirmed that the GAS increased when measuring the target activities (Supine Flexion Posture; SFP, Walking by Arms; WA, Stand on Balance Ball; SBB). Conclusion : This study provided evidence that sensory integration has a positive effect on performing target activities (SFP, WA, SBB) and improving relationships with peers in children with somatodyspraxia.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.12
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• pp.645-651
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• 2019

This study examined the correlation between the forward head posture (FHP), temporomandibular joint disorder (TMD), and temporomandibular joint quantitative somatosensory sensation. This study examined the correlation between the temporomandibular joint function and somatosensory sensation according to the change in FHP after the intervention on the head posture in 62 subjects (22.15 ± 2.56 years) Biofeedback training was administered to the FHP, which was performed 12 times for a total of four weeks. To assess the FHP, the craneovertebral angle (CVA) was examined. The temporomandibular joint (TMJ) function was measured by the Therapeutic Range of Motion Scale and the left and right lateral deviation, and the sensation of vibration threshold was measured to confirm the change in somatic sensation. Multiple regression analysis was performed to confirm the influence of each variable and Pearson's correlation analysis was performed to assess the correlation. Changes in the temporal joint function (p<.001) and somatic sensation (p<.001) were correlated significantly with the changes in CVA. These results show that there is a significant correlation between the frontal head position, TMJ function, and somatosensory sensation. These results provide a new paradigm for the treatment of jaw joints for patients suffering from TMD and provide a basis for the future treatment of the temporomandibular joint.

• Journal of Korea Entertainment Industry Association
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• v.14 no.6
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• pp.269-277
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• 2020

The purpose of this study is to investigate the recovery of sensation and the restoration of upper limb function according to transcranial direct current stimulation over the primary somatosensory cortex in patients with chronic stroke with sensory deficit. 20 patients with chronic stroke divided into 10 experimental groups and 10 control groups. Patients received transcranial direct current stimulations over the primary somatosensory cortex on the side of the stroke lesion, and The control group applied sham tDCS to the same location. Intervention was conducted 5 times a week, 20 minutes per session for a total of 2 weeks. Assessment was performed using the Erasmus MC modifications to the Nottingham Sensory Assessment(EmNSA), Semmes-Weinstein monofilament examination(SWME) for somatosensory, and Fugle-Meyer Assessment(FMA), Motor Activity Log(MAL), and accelerometer for upper extremity function. Assessment was conducted before and after the intervention. As a result of the study, the experimental group showed a significant improvement in the overall tactile sense, proprioception, cortical sense, and perception sensitivity than the control group, and showed a statistically significant difference in the usage amount of the upper limb. Based on the results of this study, it is thought that the possibility of effective clinical application of transcranial direct current stimulation for recovery of somatosensory and upper extremity function is thought to be increased.

• Therapeutic Science for Rehabilitation
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• v.1 no.2
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• pp.5-13
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• 2012

The purpose of the research study is to confirm in effectiveness of somatosensory stimulation and to propose ideal training strategy for functional recovery of stroke patients. Through the previous literatures, our study investigated to the advantages and disadvantages in electrical somatosensory stimulation for stroke patients. Also, our study suggested to applicable strategies and confirmed to growth direction about new somatosensory stimulation therapy for functional recovery in stroke patients. Result of research study, although many study demonstrated to the effectiveness about somatosensory stimulation therapy for stroke patients, many therapists have experienced many difficulties in somatosensory stimulation application for stroke patients in rehabilitation environments. Thus, few have the therapeutic tools for somatosensory or specific sensory input. However, apparently the previous literatures showed that effectiveness of somatosensory stimulation on functional recovery of patients with brain damage. In conclusion, we can be confirmed that an ideal somatosensory stimulation program is very effective in promoting recovery and the integrity of the somatosensory pathway of stroke patients. Furthermore, we anticipate that using the customized mechanical interface provides to positive effects in rehabilitation of patients with brain damage.

• Journal of the korean academy of Pediatric Dentistry
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• v.23 no.3
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• pp.582-592
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• 1996

본 실험은 삼차신경 자극으로 발생되는 체성 감각 유발 전위에 대한 국소마취제의 효과를 관찰하였다. 나트륨 통로차단을 통하여 약리작용을 나타내는 것으로 알려져 있는 리도카인를 뇌 피질에 국소 투여한 후 삼차신경의 체성 감각유발 전위의 강도및 지연시간을 측정하였다. 케타민으로 마취된 흰쥐의 대측성 구레나룻 자극후 뇌의 체성 감각영역으로부터 기록되는 유발전위를 분석한 결과, 리도카인을 뇌 피질에 국소 투여시 유발전위의 강도 및 지연시간의 감소가 나타났으며, 필드 전위의 형태는 이상성 (양극성 및 음극성) 혹은 삼상성 (양극성, 음극성 및 양극성) 의 파형으로 나타났다. 필드 전위의 발생 부위는 뇌 피질의 중대뇌동맥의 상행지 상방영역이었다. 본 실험에서 나타난 초기 전위변동은 피질판 상층에 존재하는 신경세포의 탈분극 과청에 의하여 생성되고 후기의 전위 변동은 동일 영역의 하층 신경세포에서 과분극 혹은 재분극이 발생한 결과라고 유추된다. 따라서 삼차신경계의 체성 감각 영역에서는 피질 상층및 하층의 과립성 피라미드 세포의 순차적인 활성화에 의하여 기본적인 신경 회로망이 형성되어 있으며 생리적 자극으로 유발되는 필드 전위는 이러한 신경망를 통하여 발생될 것으로 사료된다.

• Journal of Biomedical Engineering Research
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• v.15 no.4
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• pp.481-488
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• 1994

In this paper a study of neuro-pathway estimation based on visual and somatosensory evoked potential is given. The evoked potentials which are caused by visual and somatosensory stimulation are detected by an average method. The forward problem that is estimating a scalp potential from a given electrical source in the brain is solved by using a triple concentric spherical shell model of the head and a single current dipole model of the neuron activity. The inverse problem which calculates a source position is solved by a least square fit between the model predicted potential and a given evoked potential measurement. The similarities between estimated sensory neuro-pathways and physiological brain function regions are verified.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2001.05a
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• pp.239-243
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• 2001

최근 각종 질병과 사고로 평형감각에 이상이 있는 환자가 증가하고 있다. 이들의 빠른 사회로의 환원을 위해서는 평형감각을 회복시킬 수 있는 효율적인 재활훈련이 필요하다. 하지만 기존 장비들은 근력을 길러주거나 특정감각기관만을 훈련시켜주는 정도의 재활만이 가능하다. 따라서 본 연구에서는 가상현실기술과 자전거를 이용하여 평형감각 실조환자의 진단 및 시각, 전정감각, 체성감각 등을 효율적으로 진단하고 자극, 훈련시킬 수 있는 bike simulator system을 개발하였다. 그리고 본 시스템이 재활훈련에 유용한지 실험 검토하였다. 실험결과 본 시스템을 통한 반복실험결과 COP의 값을 통하여 평형감각의 정량적 측정, 분석이 가능하였고, 훈련시 COP를 실시간으로 visual feedback함으로서 평형감각의 조절과 balance의 유지기능이 향상함을 확인하였고 본 시스템이 통합평형감각 측정 및 훈련용 재활장비로 유용함을 알 수 있었다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.05a
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• pp.293-293
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• 2004

최근 교통사고의 증가와 평균수명의 연장으로 인한 노인 인구의 급증으로 중추신경계의 기능에 손상을 초래하는 각종 질환들 즉 뇌졸중, 외상성 뇌손상, 뇌성마비 및 퇴행성 뇌질환 등이 더욱 많아지고 있다. 이러한 질환들은 뇌기능 장애로 인한 운동, 감각 및 인지능력 저하를 일으켜 보행과 일상생활 동작수행에 큰 장해를 초래하게 된다. 특히 보행능력의 장해는 일상생활 및 사회생활에 필요한 기동력을 제한하므로 결국 타인에 의존적이 되고 사회로부터 고립되는 심각한 기능장애를 일으키게 된다.(중략)