• 한국멀티미디어학회논문지
• /
• 제24권10호
• /
• pp.1336-1345
• /
• 2021

Attention Deficit Hyperactivity Disorder (ADHD) is one of the most common neurological disorders in children. The diagnosis of ADHD in children is based on the interviews and observation reports of parents or teachers who have stayed with them. Since this approach cannot avoid long observation time and the bias of observers, another approach based on Electroencephalography(EEG) is emerging. The goal of this study is to develop an assistive tool for diagnosing ADHD by EEG classification. This study explores the frequency bands of EEG and extracts the implied features in them by using the proposed CNN. The CNN architecture has three Convolution-MaxPooling blocks and two fully connected layers. As a result of the experiment, the 30-60 Hz gamma band showed dominant characteristics in identifying EEG, and when other frequency bands were added to the gamma band, the EEG classification performance was improved. They also show that the proposed CNN is effective in detecting ADHD in children.

• 대한수의학회지
• /
• 제41권4호
• /
• pp.591-596
• /
• 2001

The chicks from 6 field broiler farms revealed peripheral neuropathy including leg weakness, curled toes and drooped wings. Grossly distinctive enlargements of sciatic nerve, branchial nerve and lumbar nerve were observed in the chicks. Histologically nerve lesions consisted of demyelination of myelin sheaths, Schwann cell proliferation and swelling, and interstitial edema in the peripheral nerves of all birds examined. Axonal swelling and infiltration of small lymphocytes were observed, but not a primary lesion. After treatment of riboflavin, neurological disorder was markedly recovered. From these results, it is suggested that the peripheral nerve lesions in these cases were caused by dietary riboflavin deficiency.

• 수면정신생리
• /
• 제9권1호
• /
• pp.14-17
• /
• 2002

Epilepsy is a paroxysmal disorder caused by abnormal electrical discharges of the brain. As it is characterized by episodic seizures with intervening normal neurological states, some temporal patterns of seizure attacks can be traced. Sleep and wakefulness patterns are one of several factors influencing seizure occurrence. In this article, physiological and pathological influences of sleep on the seizure phenomenon were reviewed. Understanding this relationship between sleep and epilepsy might lead to better understanding of sleep and epilepsy themselves, thus leading to better diagnosis and treatment of each disease.

• Investigative Magnetic Resonance Imaging
• /
• 제20권1호
• /
• pp.71-74
• /
• 2016

Wernicke's encephalopathy (WE) is an acute neurological disorder resulting from thiamine deficiency. Early diagnosis and treatment of WE is important to avoid persistent brain damage. Although histopathologic examination usually demonstrates pin-point hemorrhages in affected brain parenchyma, secondary hemorrhage is a rare but serious complication of WE. We experienced a rare case of intracranial hemorrhage related to WE in a 56-year-old male patient with malnourishment.

• 대한감각통합치료학회지
• /
• 제14권1호
• /
• pp.50-59
• /
• 2016

목적 : 본 연구에서는 감정조절에 대한 신경학적 메커니즘을 이해하고, 감정조절과 감각처리의 연관성에 대해 알아보고자 한다. 본론 : 신경학적으로 감정조절은 주로 둘레계의 구조물에 의해 처리되고 특히, 편도의 바닥-바깥쪽 그룹이 주요한 역할을 한다. 바닥-바깥쪽 그룹은 감각의 중계소인 시상과 직 간접적으로 연결되어 감각 정보에 대한 처리를 함께 한다. 이 감각 정보는 눈-안쪽 앞 이마엽과 연결되어 감각처리 및 감정과 관련된 복잡한 행동을 하게 한다. 시상, 편도, 눈-안쪽 앞 이마엽의 연결 회로로 인해 부적절한 감각처리는 감정조절과 행동에 어려움을 발생시킬 수 있다. 자폐스펙트럼장애와 주의력결핍과잉행동장애 아동에서 편도 및 앞 이마엽의 비정상적인 처리에 대한 신경학적 연구가 보고되고 있다. 결론 : 자폐스펙트럼장애와 주의력결핍과잉행동장애 아동은 신경계의 상태가 다르고 이는 감각처리와 감정조절, 행동에서 다양한 양상을 나타낸다. 치료사는 아동의 행동에 영향을 미치는 감각처리와 감정조절에 대한 신경학적 메커니즘을 이해하고, 치료적 적용을 할 필요가 있다.

• 재활치료과학
• /
• 제1권1호
• /
• pp.5-16
• /
• 2012

감각통합은 이론에서 출발하여 현재 치료사들이 아동의 문제를 찾고 중재하는데 유용한 틀을 제공한다. 이전까지 대부분의 감각통합 연구들은 감각처리 장애아동들이 나타내는 행동을 측정하는 경험적 증거들을 보고하였다. 최근에 감각처리 장애 진단에 대한 객관적 증거 마련을 위해서 신경생리학적 연구 결과가 축적되기 시작하였다. 감각처리 장애에 대한 신경생리학적 근거를 찾는 연구들은 전기피부 활동, 미주신경 톤, 뇌파를 사용하여 감각처리 장애아동과 전형적으로 발달하는 또래 아동들 간 신경생리학적 반응이 다르다는 결과를 보고하였을 뿐만 아니라 감각처리 어려움과 관련한 행동 특징이 신경생리학적 지표에서도 반영됨을 발견하였다. 앞으로 연구에서는 감각통합 치료 효과를 지지하는 신경생리학적 증거도 얻을 수 있을 것이라 기대해 본다.

• The Journal of Korean Physical Therapy
• /
• 제29권6호
• /
• pp.316-323
• /
• 2017

Effort to improve balance ability in the field of rehabilitation has been constantly issued and developed up to now. A variety of subcomponent of postural control including function and cognition should be needed in many body systems and be complicatedly linked to each system. In South Korea, although decreased postural dysfunction due to neurological or musculoskeletal disorders has been well documented, we do not have many experience and knowledge of vestibular rehabilitation for maintain and improve balance function. In the United States, vestibular physical therapy is already acknowledged as clinical subspecialty by American Physical Therapy Association. However, there is no curriculum subject related to vestibular rehabilitation in standard education of physical therapy and no specialist who has clinical experience and knowledge of this realm. Therefore, we reviewed general information and basic knowledge of vestibular rehabilitation such as current state of vestibular disorder in South Korea, pathology, major causes of vestibular dysfunction including peripheral vestibular disorders, vestibular neuritis, benign paroxysmal positional vertigo, and central disorder, evaluation of vestibular dysfunction, and treatment for vestibular dysfunction new approaches. We expect that physical therapist in South Korea recognize clinical significance of vestibular exercise and that clinical concern and research will be begun in near future.

• Genomics & Informatics
• /
• 제14권3호
• /
• pp.70-77
• /
• 2016

Transposable elements are one of major sources to cause genomic instability through various mechanisms including de novo insertion, insertion-mediated genomic deletion, and recombination-associated genomic deletion. Among them is Alu element which is the most abundant element, composing ~10% of the human genome. The element emerged in the primate genome 65 million years ago and has since propagated successfully in the human and non-human primate genomes. Alu element is a non-autonomous retrotransposon and therefore retrotransposed using L1-enzyme machinery. The 'master gene' model has been generally accepted to explain Alu element amplification in primate genomes. According to the model, different subfamilies of Alu elements are created by mutations on the master gene and most Alu elements are amplified from the hyperactive master genes. Alu element is frequently involved in genomic rearrangements in the human genome due to its abundance and sequence identity between them. The genomic rearrangements caused by Alu elements could lead to genetic disorders such as hereditary disease, blood disorder, and neurological disorder. In fact, Alu elements are associated with approximately 0.1% of human genetic disorders. The first part of this review discusses mechanisms of Alu amplification and diversity among different Alu subfamilies. The second part discusses the particular role of Alu elements in generating genomic rearrangements as well as human genetic disorders.

• 대한한방내과학회지
• /
• 제38권5호
• /
• pp.658-667
• /
• 2017

Objectives: This is a case report regarding the effect of Korean traditional medicine on vision disorder and quadriplegia in a patient with neuromyelitis optica. Methods: We treated a patient who was diagnosed with neuromyelitis optica with Korean traditional medicine, including acupuncture, moxibustion, and herbal medicine (Gigugyanghyeol-tang gamibang) for 106 days. We evaluated the patient with the International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI), Modified Barthel Index (MBI), Modified Ashworth Scale (MAS) Grade, and Numeric Rating Scale-11 (NRS-11). Results: After treatment, the patient's symptoms were improved. The ISNCSCI scores increased from 42 to 66 in motor score, from 152 to 196 in sensory score, and from A to D in the ASIA impairment scale; the MBI score increased from 9 to 33, while the score of the MAS Grade decreased from I+ to I, and the NRS-11 scores of vision disorder, spasticity, and tingling decreased from 10 to 7, 3, and 2-3, respectively. Conclusions: Korean traditional medicine may be effective for treatment of vision disorder and quadriplegia in patients with neuromyelitis optica.

• 수면정신생리
• /
• 제29권2호
• /
• pp.35-39
• /
• 2022

렘수면 행동장애는 렘수면에서 과도한 근전도 활동과 관련된 불쾌한 꿈과 격렬한 행동이 특징인 사건수면이다. 이는 특발성으로 나타날 수 있고, 다른 신경학적 또는 의학적 상태에 이차적으로 나타날 수 있는 등 여러 이질적인 기저 질환이 있을 수 있다. 특발성으로 나타나는 렘수면 행동장애는 대부분 시누클레인 병증으로 인한 신경퇴행성 질환이 나타날 가능성을 의미하므로, 정확한 진단이 예후를 예측하는데 중요하다. 렘수면 행동장애의 진단을 위해서는 수면다원검사에서 나타나는 무긴장증이 없는 렘수면이 필수적이다. 노인 환자에서 수면 중 꿈을 꾸면서 행동을 보이는 질환으로는 폐쇄성 수면 무호흡증, 외상 관련 수면 장애, 수면 중 격렬한 주기적인 다리 운동 등이 알려져 있다. 렘수면 행동장애를 모방할 수 있는 다른 수면장애가 동반되어 나타날 수 있음을 고려하여 신중한 병력 청취와 수면다원검사 등을 이용하여 수면장애의 감별 진단 및 치료가 중요하겠다.