• 한국산학기술학회논문지
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• 제11권9호
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• pp.3284-3288
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• 2010

이 연구는 이(耳)봉요법이 청소년기의 뇌기능변화에 어떤 영향을 주는지 분석하고자 하였다. 이를 위해 경기도 남부지역에 있는 청소년 41명을 대상으로 실험군 21명, 비교군 20명으로 분류하여 2009년 11월7일부터 12월14일까지 실험을 실시하였으며 이봉요법의 사전사후 측정 결과를 대응표본 t-검정으로 통계처리 하였다. 그 결과, 정신적 이완과 관련하여 산만도지수에서 유의미한 결과가 나타났다. 이로써, 이(耳)봉요법이 청소년기의 뇌기능변화 가운데 정신적 이완에 효과가 있음을 확인하였다.

• 한국산학기술학회논문지
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• 제14권12호
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• pp.6309-6316
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• 2013

최근 청소년기의 이환율과 사망률, 정신건강과 문제행동의 위험 수준이 심각하나 적절한 중재가 없는 실정이다. 이에 본 유사실험 연구는 뉴로피드백 훈련이 고등학생의 일반적 건강수준, 정신건강과 문제행동 및 뇌기능 지수에 미치는 영향을 확인하였다. 뉴로피드백 훈련은 2012년 9월부터 12월, 주 2회(총 20회)에 걸쳐 방과 후 교내 컴퓨터실에서 훈련된 연구자 1인에 의해 진행되었으며 구조화된 설문지와 뇌기능 프로그램을 이용하여 자료수집하였다. 대상자는 S시 I고등학교에 재학 중인 고등학생으로, 대조군 6명과 실험군 5명이 최종 분석되었다. 자료는 SPSS 20.0을 이용하여 정규성 검정 후 paired t-test와 Wilcoxon signed rank test로 효과 검증하였다. 뉴로피드백 훈련 결과, 일반적 건강수준, 정신건강과 문제행동은 유의미한 차이는 없었으나 통계적으로 향상되었고, 뇌기능 지수 가운데 정서지수와 좌 우 육체적, 정신적 스트레스 저항지수가 두 군 간에 통계적으로 유의미한 차이가 있는 것으로 나타났다.

• 감성과학
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• 제20권4호
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• pp.41-54
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• 2017

신체활동은 노화로 의한 인지기능 저하에 긍정적 영향을 미친다. 하지만 신체활동 참여가 정서인지기능에 미치는 영향을 과학적으로 밝혀 낸 연구는 드물다. 따라서 본 연구의 목적은 청년기와 노년기 성인의 정서인지 기능에 신체활동 참여가 어떠한 영향을 미치는지를 뇌 과학적으로 연구하는 것이다. 연구의 피험자는 D 광역시 성인 남성 60명으로 선정하였으며, 청년 운동 집단(25~35살), 청년 비 운동 집단(26~35살), 노년 운동 집단(60~70살), 노년 비 운동집단(60~70살) 4개의 집단으로 구성하였다. 실험도구는 EEG 측정 장비와 국제정서사진체계(International Affective Picture System: IAPS)를 사용하였다. 본 연구의 실험과제는 사진으로 제시하는 세 가지 정서자극(긍정적, 중립, 부정적)에 적합한 버튼을 눌러 정서적인지 검사를 실시하였다. EEG 측정은 8개(Fp1, Fp2, Fz, C3, C4, Cz, T3, T4)의 영역을 측정하였다. 통계처리는 4(집단)${\times}$3(자극)${\times}$8(영역)에 대한 삼원분산분석을 실시하였다. 결과: 본 연구 결과, 반응시간과 반응정확률 그리고 P3 잠재기는 집단간 주효과가 나타났다. 그리고 P3 진폭은 집단과 자극간 상호작용이 나타났다. 결론: 신체활동은 청년층과 노년층의 정서적 인지기능에 긍정적인 영향을 미치는 것으로 나타났다.

• Neonatal Medicine
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• 제25권1호
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• pp.7-15
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• 2018

We need to understand the outcomes into adulthood for survivors born either extremely low birthweight (ELBW; <1,000 g) or extremely preterm (EP; <28 weeks' gestational age), particularly their blood pressure and cardiovascular metabolic status,respiratory function, growth, psychological and mental health performance, and functional outcomes. Blood pressure is higher in late adolescence and early adulthood in ELBW/EP survivors compared with controls. In some studies, expreterm survivors have higher insulin and blood lipid concentrations than controls, which may also increase their risk for later cardiovascular disease. ELBW/EP survivors have more expiratory airflow obstruction than do controls. Those who had bronchopulmonary dysplasia (BPD) in the newborn period have even worse lung function than those who did not have BPD. As a group, they are unlikely to achieve their full lung growth potential, which means that more of them are likely to develop chronic obstructive airway disease in later life. Although they are smaller than term born controls, their weight gradually rises and ultimately reaches a mean z-score close to zero in late adolescence, and they ultimately attain a height z-score close to their mid-parental height z-score. On average, ex-preterm survivors have intelligence quotient (IQ) scores and performance on tests of academic achievement approximately 2/3 SD lower than do controls, and they also perform less well on tests of attention and executive function. They have similar high rates of anxiety and depression symptoms in late adolescence as do controls. They are, however, over-represented in population registries for rarer disorders such as schizophrenia and Autism Spectrum Disorder. In cohort studies, ex-preterm survivors mostly report good quality of life and participation in daily activities, and they report good levels of self-esteem. In population studies, they require higher levels of economic assistance, such as disability pensions, they do not achieve education levels as high as controls, fewer are married, and their rates of reproduction are lower, at least in early adulthood. Survivors born ELBW/EP will present more and more to health carers in adulthood, as they survive in larger numbers.

• Journal of Korean Biological Nursing Science
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• 제18권4호
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• pp.274-279
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• 2016

Purpose: Adolescents who experienced the alcohol consumption have gradually increased. Adolescence is a critical period of the neural plasticity in the brain. Neural plasticity is mediated by neurotrophins and has an impact on cognitive function. Environmental enrichment ameliorates the cognitive function and increases neurotrophins. Thus, we investigated the neuroprotective effect of environmental enrichment on ethanol induced cognitive impairment in adolescent rats. Methods: The ethanol groups and the controls groups were injected with ethanol (0.5g/kg) and phosphate buffered saline, respectively, through intraperitoneal from 28th day of birth for 11 days. The environmental enrichment groups were provided larger cages containing toys than the standard cage. Passive avoidance test and Y-maze test were performed to evaluate the spatial memory. Results: Environmental enrichment+ethanol group showed higher alterations than the standard environment+ethanol group in Y-maze test (p<.05). In hippocampus, The environmental enrichment+ethanol group showed significantly higher level of the number of c-fos positive celsl and density of tropomyosin receptors kinase B receptor than the standard environment+ethanol group (p<.05). Conclusion: So, we suggested that the environmental enrichment played a role as a prophylaxis for prevention of memory impairment induced by ethanol exposure in adolescence.

• Clinical and Experimental Pediatrics
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• 제50권8호
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• pp.711-717
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• 2007

Sleep is a vital, highly organized process regulated by complex systems of neuronal networks and neurotransmitters. Normal sleep comprises non-rapid eye movement (NREM) and REM periods that alternate through the night. Sleep usually begins in NREM and progresses through deeper NREM stages (2, 3, and 4 stages), but newborns enter REM sleep (active sleep) first before NREM (quiet sleep). A period of NREM and REM sleep cycle is approximately 90 minutes, but newborn have a shorter sleep cycle (50 minutes). As children mature, sleep changes as an adult pattern: shorter sleep duration, longer sleep cycles and less daytime sleep. REM sleep is approximately 50% of total sleep in newborn and dramatically decreases over the first 2 years into adulthood (20% to 25%). An initial predominant of slow wave sleep (stage 3 and 4) that peaks in early childhood, drops off abruptly after adolescence by 40% from preteen years, and then declines over the life span. The hypothalamus is recognized as a key area of brain involved in regulation of sleep and wakefulness. The basic function of sleep largely remains elusive, but it is clear that sleep plays an important role in the regulation of CNS and body physiologic processes. Understanding of the architecture of sleep and basic mechanisms that regulate sleep and wake cycle are essential to evaluate normal or abnormal development of sleep pattern changes with age. Reduction or disruption of sleep can have a significant impact on daytime functioning and development, including learning, growth, behavior, and emotional regulation.