• Title/Summary/Keyword: Brain training

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Evaluation of Upper-Limb Motor Recovery after Brain Injury: The Clinical Assessment and Electromyographic Analysis (뇌손상 후 상지 운동기능 회복 평가: 임상적 평가 및 운동반응 근전도 분석)

  • Kim, Young-Ho;Tae, Ki-Sik;Song, Sung-Jae
    • Physical Therapy Korea
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    • v.12 no.1
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    • pp.91-99
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    • 2005
  • We assessed whether the use of a symmetrical upper limb motion trainer in daily repetitive training for a 6-week period reduced spasticity and improved motor function in three chronic hemiparetic patients. Upper limb motor impairment and disability were measured by the Fugl-Meyer Assessment (FMA), Modified Ashworth Scale (MAS) and Manual Muscle Test (MMT), respectively. The electromyography (EMG) of the affected hand was recorded during isometric wrist flexion and extension. In all patients, FMA and MMT scores were significantly improved after the 6-week training. However, MAS scores of the affected wrist spasticity did not change considerably. Onset and Offset delays in muscle contraction significantly decreased in the affected wrist. The co-contraction ratio of flexor and extensor muscles significantly increased after the 6-week training. Onset and offset delays of the muscle contraction and co-contraction ratio correlated significantly with the patients' FMA. This study showed that repetitive, symmetric movement training can improve upper limb motor functions and abilities in chronic hemiparetic patients. Also, the EMG assessment of motor response is likely to provide insights into mechanisms and treatment strategies for motor recovery in chronic hemiparetic patients.

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Effects of Virtual Reality Program on Standing Balance in Chronic Stroke Patients (가상현실 프로그램이 만성 뇌졸중 환자의 선자세 균형에 미치는 영향)

  • Kim, Joong-Hwi;Kim, Chung-Sun
    • The Journal of Korean Physical Therapy
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    • v.17 no.3
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    • pp.351-367
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    • 2005
  • The purpose of this study was to identity effects of virtual reality(VR) program related to standing postural control on balance, gait and brain activation patterns in chronic hemiplegic stroke patients. Subjects were assigned randomly to either VR group (n=12) or the control group (n=12) when the study began. Both groups received conventional physical therapy for 2 to 3 times per week. In addition to conventional physical therapies, VR group trained 3 types of virtual reality programs using IREX for standing postural control during 4 weeks (4 times/week, 30 minutes/time). Subjects were assessed for static and dynamic balance parameters using BPM, functional balance using Berg Balance Scale related to movement of paretic lower limb before and after 4 weeks of virtual reality training. The results of this study were as follows. 1. Following VR training, VR group demonstrated the marked improvement on dynamic mean balance, anteroposterior limits of stability (AP angle) and mediolateral limits of stability (ML angle). 2. Following VR training, both groups scored higher on Berg Balance Scale. However, a comparison of mean change revealed differences between groups. In conclusion, these data suggest that the postural control training using VR programs improve dynamic and functional balance performance in chronic hemiplegic stroke patients.

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Development of Contents for Improve the Concentration based on Neurofeedback (뉴로피드백 기반의 집중력 향상 콘텐츠 개발)

  • Park, Tae-Woo;Park, Jun-Mo;Jeong, Do-Un
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2016.05a
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    • pp.284-285
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    • 2016
  • In this paper, reflecting the index of concentration and real-time EEG measurement, implementation of the game-type content that can be centralized power of training. Implemented content, for more effective training, based on the brain wave difference in each user, by reflecting an indication of concentration, it is possible by level training. In order to evaluate the usefulness of the implemented content, to target the five subjects, is underway to improve training of concentration, through a comparative analysis of the changes in the index of ability to concentrate, to confirm the improvement of the concentration of the user it could be.

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The effects of a concentration, an auditory reaction time and a muscle power on an agility (집중력, 청각반응속도, 순발력이 민첩성에 미치는 영향)

  • Kim, Mi-Kyoung;Nam, Ji-Yoon;Noh, Su-Yeong;Han, Dong-Wook
    • Journal of Korean Physical Therapy Science
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    • v.19 no.3
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    • pp.17-22
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    • 2012
  • Background : The purpose of this study was to investigate the relationship between an agility and a concentration, an auditory reaction time and a muscle power. Methods : Twenty one healthy female college students who were 20-21 years participated in the experiment; after being introduced to the methods, they voluntarily signed a consent form. And they received several test related with this study; side step test for an agility, Harris & Harris test for a concentration, brain auditory evoked potential test for an auditory reaction time and vertical jump test for a muscle power. Result : There was no relationship between the agility and the concentration and the auditory reaction time. However, the muscle power related with the agility significantly. Conclusion : In conclusion, these findings suggest that a muscle power training is a good way to promote an agility. So, we can find out that, in an player who requires an agility, a muscle power training is the most important way for promoting an agility than a concentration training or an auditory reaction time training.

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Effects of Swallowing Training Program for Nursing Home Residents with Stroke (요양시설 거주 뇌졸중 노인을 위한 연하 훈련 프로그램의 효과)

  • Kim, Haesook;Lim, Kyung-Choon
    • Journal of muscle and joint health
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    • v.30 no.3
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    • pp.230-241
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    • 2023
  • Purpose: This study aimed to verify the effects of a swallowing training program on swallowing function and depression for nursing home residents with dysphagia after stroke. Methods: This is a quasi-experimental study with non-equivalent control group pre-post test design. The program (oro-facial muscle strengthening exercises, swallowing exercises, expiratory muscle strengthening exercises, and brain stimulation exercises) applied to the experimental group three times per week for eight weeks, 40-45 minutes for each intervention. The final data from 42 people (21 experimental and 21 control) were analyzed by SPSS/WIN 25.0 using descriptive statistics. 𝜒2 test, t-test, Wilcoxon rank sum test, and Friedman test. Results: The experimental group was significantly improved than control group in oro-facial muscle strength, swallowing symptoms (Z=-2.22, p=.026), and oral intake function level (Z=-2.00, p=.046). However, there was no significant difference between two groups in depression. Conclusion: This study is meaningful in that it reorganized and mediated a swallowing training program as a safe, non-invasive exercise that nurses can implement in a nursing facility with limited medical personnel and it could be easily followed by older adults.

Analysis and Study for Appropriate Deep Neural Network Structures and Self-Supervised Learning-based Brain Signal Data Representation Methods (딥 뉴럴 네트워크의 적절한 구조 및 자가-지도 학습 방법에 따른 뇌신호 데이터 표현 기술 분석 및 고찰)

  • Won-Jun Ko
    • The Journal of the Korea institute of electronic communication sciences
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    • v.19 no.1
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    • pp.137-142
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    • 2024
  • Recently, deep learning technology has become those methods as de facto standards in the area of medical data representation. But, deep learning inherently requires a large amount of training data, which poses a challenge for its direct application in the medical field where acquiring large-scale data is not straightforward. Additionally, brain signal modalities also suffer from these problems owing to the high variability. Research has focused on designing deep neural network structures capable of effectively extracting spectro-spatio-temporal characteristics of brain signals, or employing self-supervised learning methods to pre-learn the neurophysiological features of brain signals. This paper analyzes methodologies used to handle small-scale data in emerging fields such as brain-computer interfaces and brain signal-based state prediction, presenting future directions for these technologies. At first, this paper examines deep neural network structures for representing brain signals, then analyzes self-supervised learning methodologies aimed at efficiently learning the characteristics of brain signals. Finally, the paper discusses key insights and future directions for deep learning-based brain signal analysis.

A Study on the Difference of Computational Thinking and Attitude according to Left and Right Brain Preference (초등학교 로봇 활용 교육에서 좌우뇌선호에 따른 컴퓨팅사고력, 로봇에 대한 태도의 차이)

  • Noh, Jiyae
    • Journal of The Korean Association of Information Education
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    • v.24 no.4
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    • pp.327-335
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    • 2020
  • This study intends to examine the effects of education using robot on computational thinking and attitudes according to left and right brain preference. To execute the study, 17 elementary students at A youth training center in Seoul were selected to participate in the education. And the mean difference was analyzed using matched pair t-test and Mann-Whitey U test. As a result, after participating in the education, there was some statistical significance found in the scores to test student's computational thinking, but not statistical significance on the attitudes. Furthermore, there was no significance found in computational thinking or attitude according to the left and right brain preference. The purpose of this study can be found in that it expands the understanding of education using robot by verifying the efficacy and analyzing differences according to left and right brain preference.

A Meta-Analytic Review of Effects of Brain-Based Education (뇌기반 교육의 효과에 대한 메타분석)

  • Jang, Hwan Young;Jang, Bong Seok
    • Journal of Practical Engineering Education
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    • v.12 no.1
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    • pp.41-47
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    • 2020
  • This study aims to investigate effects of brain-based learning. 27 primary studies were selected through rigorous search process and analyzed through meta-analytic methods. Research findings are as follows. First, the total effect size was .67. Second, the effect of dependent variables was academic achievement, cognitive domain, and affective domain in order. Third, with respect to types of cognitive domain, the effect was self-regulation, creativity, competence, communication, and research ability in order. Fourth, the effect of affective domains was sociality, learning interest, and subject attitude in order. Fifth, regarding development of cognitive ability, the effect size was combined, brain training, learning environments, and right brain activities in order. Sixth, the effect of learning activities was memory improvement and attention enhancement in order.

The effects of early exercise in traumatic brain-injured rats with changes in motor ability, brain tissue, and biomarkers

  • Kim, Chung Kwon;Park, Jee Soo;Kim, Eunji;Oh, Min-Kyun;Lee, Yong-Taek;Yoon, Kyung Jae;Joo, Kyeung Min;Lee, Kyunghoon;Park, Young Sook
    • BMB Reports
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    • v.55 no.10
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    • pp.512-517
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    • 2022
  • Traumatic brain injury (TBI) is brain damage which is caused by the impact of external mechanical forces. TBI can lead to the temporary or permanent impairment of physical and cognitive abilities, resulting in abnormal behavior. We recently observed that a single session of early exercise in animals with TBI improved their behavioral performance in the absence of other cognitive abnormalities. In the present study, we investigated the therapeutic effects of continuous exercise during the early stages of TBI in rats. We found that continuous low-intensity exercise in early-stage improves the locomotion recovery in the TBI of animal models; however, it does not significantly enhance short-term memory capabilities. Moreover, continuous early exercise not only reduces the protein expression of cerebral damage-related markers, such as Glial Fibrillary Acid Protein (GFAP), Neuron-Specific Enolase (NSE), S100β, Protein Gene Products 9.5 (PGP9.5), and Heat Shock Protein 70 (HSP70), but it also decreases the expression of apoptosis-related protein BAX and cleaved caspase 3. Furthermore, exercise training in animals with TBI decreases the microglia activation and the expression of inflammatory cytokines in the serum, such as CCL20, IL-13, IL-1α, and IL-1β. These findings thus demonstrate that early exercise therapy for TBI may be an effective strategy in improving physiological function, and that serum protein levels are useful biomarkers for the predicition of the effectiveness of early exercise therapy.

Impaired Avoidance Learning and Increased hsp70 mRNA Expression in Pentylenetetrazol-treated Zebrafish

  • Kim, Yeon-Hwa;Lee, Yun-Kyoung;Lee, Han-Sol;Jung, Min-Whan;Lee, Chang-Joong
    • Animal cells and systems
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    • v.13 no.3
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    • pp.275-281
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    • 2009
  • The effects of pentylenetetrazol (PTZ), a GABA receptor antagonist, were studied on passive avoidance learning and expression of heat shock protein 70 (hsp70), neuroglobin, and fatty acid binding protein-7 (fabp-7) genes. Zebrafish were trained to stay in a dark compartment to avoid a weight dropping in an acryl shuttle box with a central sliding door. In two training sessions of 2 h interval, each consisting of 3 trials, the crossing time was significantly increased from $43.2{\pm}14.4s$ to $149.3{\pm}38.5s$ in the first training session and remained $116.1{\pm}36.0s$ s in the first trial of the second training session in the control. In zebrafish treated with PTZ before the first training session, the crossing time was significantly increased neither in the first nor in the second training session. However, the increased crossing time was maintained in the second training session when 10 mM PTZ was treated three times for 10 min at 30 min intervals between the first and second training session. Quantitative real-time PCR showed that expression level of hsp70 mRNA increased two to eight fold over that of control in the brain at 0-24 h after termination of PTZ treatment. No change in expression of neuroglobin and fabp-7 mRNA was shown in PTZ-treated zebrafish. Our studies suggest that PTZ impairs learning ability in avoidance response and also modifies expression of genes related to the neuroprotection.