• 융합정보논문지
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• 제11권9호
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• pp.157-164
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• 2021

본 연구는 간호대학생의 두뇌 우성 사고 유형과 공감 능력 간의 관계를 밝히고자 하였다. 연구대상은 간호학과에 재학 중인 3학년 학생 총 90명으로 이들에게 두뇌 우성 사고 유형 검사로 Herrmann의 BDI를 실시하였고, 공감 능력 검사는 박성희(2004)가 번안한 대인관계 반응지수(IRI)을 사용하였다. 자료 분석은 Pearson 상관분석과 다변량 분석을 실시하였으며 분석 결과, 간호대학생의 두뇌우성사고 유형은 C사분면이 가장 많았으며. 두뇌우성유형과 공감 능력간의 관계는 C사분면(r=.38)과 D사분면(r=.54)에서 통계적으로 유의한 정적관계가 있었다. 전체 공감 능력은 D사분면에서 가장 높은 것으로 나타났으며, 두뇌 우성 사고 유형에 따라 전체 공감 능력은 통계적으로 유의한 차이가 있었다(F=4.95, p<.01). 본 연구결과를 토대로 간호대학생의 공감 능력 향상을 위해 간호사 양성을 위한 이론 및 실습교육에 활용하고자 한다.

• 한국정밀공학회지
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• 제22권1호
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• pp.183-192
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• 2005

This study compared cerebral lateralization index based on the area of neural activation with that based on the intensity of neural activation. For this purpose, 8 right-handed male college students (the mean age - 23.5 years) and 10 right-handed male college students (the mean age - 25.1 years) participated respectively in researches on visuospatial and verbal task brain function. Functional brain images were taken from 3T MRI using the single-shot EPI method. The result of measuring cerebral lateralization index based on the area of neural activation suggested that the right hemisphere is dominant in visuospatial tasks and the left one is in verbal tasks. However, the dominance is not sufficient to locate the exact part of the brain for these tasks. When cerebral lateralization index was computed based on the intensity of neural activation, it was derived that the area of cerebral lateralization closely related to visuospatial tasks is the superior parietal lobe, and the area of cerebral lateralization closely related to verbal tasks is the inferior and middle frontal lobes. Thus, cerebral lateralization index by area based on the intensity of neural activation as proposed by this study can determine the dominance of the cerebrum by area, so is helpful for accurate and quantitative determination of cerebral lateralization.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 2001년도 춘계학술대회 논문집
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• pp.225-230
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• 2001

Intensity of background noise is a factor significantly affecting both subjective evaluation of experienced stress level and associated electroencephalographic (EEG) responses during mental load in noisy environments. In the study on 27 subjects we analyzed the influence of the background white noise (WN) intensity on psychophysiological responses during a word recognition test. Electrocortical activity were recorded during baseline resting state and 40 s long performance on 3 similar Korean word recognition tests with different intensities of background WN (55, 70 and 85 dB).. An important finding in terms of physiological reactivity was similarity of all physiological response profiles between 55 and 70dB WN, i.e., none of physiological variables differentiated the two conditions, while 85dB WN resulted in a significantly different profile of reactions (higher fast beta power in EEG spectra). This condition was characterized by highest subjective rating of experienced stress, had more fast beta activity and had tendency of right hemisphere dominance, emphasizing the role of brain lateralization in negative affect control.

• 한국과학교육학회지
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• 제24권5호
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• pp.805-813
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• 2004

현재의 교육과정은 좌반구 중심의 활동으로 주로 이루어지고 있어 우반구 중심으로 사고하는 학생들은 학습에 어려움을 많이 느끼고 있다. 따라서 우뇌 우세 학생 집단에서 학습부진아가 많이 나타난다. 특히, 과학은 좌반구 중심의 사고가 많이 요구되는 과목으로 우뇌 우세 학생들이 흥미를 잃기 쉽고 학업성취도도 낮다. 본 연구에서는 좌뇌 중심의 과학 학습에서 소외되기 쉬운 우뇌 우세 학생들의 학업성취도를 향상시킬 수 방법으로 좌 우뇌 요소를 고루 활용하는 마인드 맵을 적용하여 마인드 맵을 활용한 수업이 학생들의 과학 학업성취도 향상에 효과적인지 알아보았다. 그리고 뇌 기능 분화와 성별에 따라서 수업의 효과 차이가 있는지 분석하였다. 본 연구의 대상은 중학교 1학년 학생 158명으로, 통제반은 전통적인 수업을 하였고, 실험반은 마인드 맵을 활용한 수업을 실시하였다. 연구 단원은 "생물의 구성", "상태변화와 에너지", "소화와 순환", "호흡"단원으로 약 17주간 50차시에 걸쳐 수업 처치를 하였다. 학생들의 뇌 기능 분화는 SOLAT 검사지를 사용하였고, 연구 결과는 SPSS 10.0 통계패키지를 사용하여 $x^2$검정과 공분산분석(ANCOVA)으로 분석하였다. 중학생들의 뇌 기능 분화 양상을 분석해 본 결과, 좌뇌형이 21.6%, 우뇌형이 31.4% 그리고 양뇌형이 47.1%이었고 뇌 기능 분화의 분포는 성별에 따라 차이가 없었다(p>.05). 마인드 맵을 활용한 수업을 함으로써 우뇌 학생들의 학업성취도를 좌뇌 학생 이상으로 높힐 수 있었다. 사전검사에서는 우뇌형 학생의 성취도가 가장 낮았으나 사후검사때서는 우뇌형 학생들의 학업성취도가 가장 많이 향상되었다. 따라서, 마인드 맵을 활용한 수업은 우뇌형 학생들의 학업성취도 향상에 효과적이고 우뇌형 학생들에게 고무적인 교수학습방법이 될 수 있다고 본다. 그리고 마인드 맵을 활용한 수업은 전통적 수업에 비해 남학생들보다는 여학생에게 효과적이어서 여학생들에게 고무적인 여학생 친화적인 과학 학습전략이 될 수 있다고 생각된다.

• 국제물리치료학회지
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• 제10권1호
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• pp.1700-1705
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• 2019

Background: Mild cognitive impairment (MCI) is also called as aging related memory damage. Decreased cognitive function due to aging is known to be associated with the frontal lobe. Alpha wave is generated in the dominance in the frontal lobe or a wide range of regions in the brain, it should be doubted that the brain function might be degraded. Objective: To determine the effect of sensory stimulation type on learning and brain activity pattern of elderly persons with MCI. Design: Randomized Controlled Trial (single blind) Methods: Twenty elderly persons aged more than 65 with MCI were randonmized to simultaneous visual/auditory stimulation group (SVASG) and or auditory stimulation group (ASG). Ten peoples were assigned to each group and lectroencephalogram test was performed to individuals. In the electroencephalogram test, electroencephalography of prior to sensory stimulation, and during sensory stimulation were measured to compare brain activity pattern according to the study groups and measurement period. Results: The relative alpha power due to a sensory stimulation type showed that the SVASG significantly decreased in the left frontal lobe and the left parietal lobe statistically compared to those of the ASG while sensory stimulation was given (p<.05). The relative beta power due to a sensory stimulation type showed that the SVASG significantly increased in the left and right frontal lobes, the left and right parietal lobes, and the left temporal lobe statistically compared to those of the ASG while sensory stimulation was given (p<.05). Conclusions: Electroencephalographic analysis showed that the type of sensory stimulation can affect the brain activity pattern. However, the effects were not studied that which brain activity pattern help to improved cognitive function of elderly persons with mild cognitive impairment.

• Journal of Acupuncture Research
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• 제19권4호
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• pp.132-139
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• 2002

This study was carried to identify whether acupuncture at several meridian points can affect the human anesthesia or not using the EEG mapping. We observe the change in the brain wave patterns obtained by electroencephalogram after acupuncture. 1. It is concluded that the pattern of resting computerized EEG map in intact human is normal and acupunctuation at determined meridian points induced lesser narrow field of alpha activity, more extensive field of ${\delta}$, ${\theta}$ activity, father resulted in marked shift to cerebrofrontal dominance in field of ${\delta}$, ${\theta}$ activity by t-SPM. 2. It seems likely that acupunctuation at experimental meridian points acts on slight anesthesia or hypnosis.

• Journal of Korean Neurosurgical Society
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• 제45권6호
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• pp.329-335
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• 2009

Objective : Determining language lateralization is important for the presurgical evaluation of patients with medically intractable epilepsy. The Wada test has been the gold standard for lateralization of language dominance before epilepsy surgery. However, it is an invasive test with risk, and have some limitations. Methods : We compared the volumetric analysis with Wada test, and studied the clinical potential of volumetric analysis to assess language laterality in large surgical candidates with temporal lobe epilepsy (TLE). To examine the efficacy of volumetric analysis to determine language lateralization during presurgical evaluation, we compared the volumetric analysis of the bilateral planum temporale with the results of Wada test in 59 patients with chronic intractable TLE (rTLE, n=32; lTLE, n=27) who underwent epilepsy surgery. We measured the gray matter volumes of planum temporale (PT) of each patients using the VoxelPlus2 program (Mevisys, Daejeon, Korea). Results : Overall congruence of the volumetric analysis with the Wada test was 97.75% in rTLE patients and 81.5% in lTLE patients. There were more significant leftward asymmetry of the PT in rTLE patients than lTLE patients. In lTLE patients, relatively high proportion (37%) of the patients showed bilateral or right hemispheric language dominance. Conclusion : These results provide evidence that the volumetric analysis of the PT could be used as an alternatives in language lateralization. Also, the results of the Wada test suggested that there was considerable plasticity of language representation in the brains of patients with intractable TLE and it was associated with an earlier age of brain injury.

• Annals of Clinical Neurophysiology
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• 제8권2호
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• pp.163-170
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• 2006

Backgrounds: MEG can measure the task-specific neurophysiologic activity with good spatial and time resolution. Language lateralization using noninvasive method has been a subject of interest in resective brain surgery. We purposed to develop a paradigm for language lateralization using MEG and validate its feasibility. Methods: Magnetic fields were obtained in 12 neurosurgical candidates and one volunteer for language tasks, with a 306 channel whole head MEG. Language tasks were word listening, reading and picture naming. We tested two word listening paradigms: semantic decision of meaning of abstract nouns, and recognition of repeated words. The subjects were instructed to silently name or read, and respond with pushing button or not. We decided language dominance according to the number of acceptable equivalent current dipoles (ECD) modeled by sequential single dipole, and the mean magnetic field strength by root mean square value, in each hemisphere. We collected clinical data including Wada test. Results: Magnetic fields evoked by word listening were generally distributed in bilateral temporoparietal areas with variable hemispheric dominance. Language tasks using visual stimuli frequently evoked magnetic field in posterior midline area, which made laterality decision difficult. Response during task resulted in more artifacts and different results depending on responding hand. Laterality decision with mean magnetic field strength was more concordant with Wada than the method with ECD number of each hemisphere. Conclusions: Word listening task without hand response is the most feasible paradigm for language lateralization using MEG. Mean magnetic field strength in each hemisphere is a proper index for hemispheric dominance.

• Journal of Korean Neurosurgical Society
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• 제60권6호
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• pp.710-716
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• 2017

Objective : Among pediatric injury, brain injury is a leading cause of death and disability. To improve outcomes, many developed countries built neurotrauma databank (NTDB) system but there was not established nationwide coverage NTDB until 2009 and there have been few studies on pediatric traumatic head injury (THI) patients in Korea. Therefore, we analyzed epidemiology and outcome from the big data of pediatric THI. Methods : We collected data on pediatric patients from 23 university hospitals including 9 regional trauma centers from 2010 to 2014 and analyzed their clinical factors (sex, age, initial Glasgow coma scale, cause and mechanism of head injury, presence of surgery). Results : Among all the 2617 THI patients, total number of pediatric patients was 256. The average age of the subjects was 9.07 (standard deviation${\pm}6.3$) years old. The male-to female ratio was 1.87 to 1 and male dominance increases with age. The most common cause for trauma were falls and traffic accidents. Age (p=0.007), surgery (p<0.001), mechanism of trauma (p=0.016), subdural hemorrhage (SDH) (p<0.001), diffuse axonal injury (DAI) (p<0.001) were statistically significant associated with severe brain injury. Conclusion : Falls were the most common cause of trauma, and age, surgery, mechanism of trauma, SDH, DAI increased with injury severity. There is a critical need for effective fall and traffic accidents prevention strategies for children, and we should give attention to these predicting factors for more effective care.

• The Korean Journal of Physiology and Pharmacology
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• 제16권1호
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• pp.65-70
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• 2012

Synaptic long-term potentiation (LTP) and long-term depression (LTD) have been studied as mechanisms of ocular dominance plasticity in the rat visual cortex. Serotonin (5-hydroxytryptamine, 5-HT) inhibits the induction of LTP and LTD during the critical period of the rat visual cortex (postnatal 3~5 weeks). However, in adult rats, the increase in 5-HT level in the brain by the administration of the selective serotonin reuptake inhibitor (SSRI) fluoxetine reinstates ocular dominance plasticity and LTP in the visual cortex. Here, we investigated the effect of 5-HT on the induction of LTP in the visual cortex obtained from 3- to 10-week-old rats. Field potentials in layer 2/3, evoked by the stimulation of underlying layer 4, was potentiated by theta-burst stimulation (TBS) in 3- and 5-weekold rats, then declined to the baseline level with aging to 10 weeks. Whereas 5-HT inhibited the induction of LTP in 5-week-old rats, it reinstated the induction of N-methyl-D-aspartate receptor (NMDA)-dependent LTP in 8- and 10-week-old rats. Moreover, the selective SSRI citalopram reinstated LTP. The potentiating effect of 5-HT at 8 weeks of age was mediated by the activation of 5-$HT_2$ receptors, but not by the activation of either 5-$HT_{1A}$ or 5-$HT_3$ receptors. These results suggested that the effect of 5-HT on the induction of LTP switches from inhibitory in young rats to facilitatory in adult rats.