Yu-Jin G. Lee

Learn More
BACKGROUND Bipolar depression is one of the most serious psychiatric conditions. In addition, sleep disturbance in bipolar disorder is common, and therapeutic agents restoring sleep disturbances in bipolar disorder patients will be clinically beneficial. In the current study, we compared the effect of quetiapine XR with lithium on depressive symptoms and(More)
OBJECTIVE Defense mechanism may contribute to psychiatric symptoms. Refugees are vulnerable to various psychiatric symptoms, such as depression, anxiety, somatization, and those associated with post-traumatic stress disorder (PTSD), due to their traumatic or stressful experiences. We aimed to investigate the mediating role of each defense mechanism in the(More)
OBJECTIVE We investigated the prevalence of insomnia and its clinical characteristics in North Korean refugees. METHODS North Korean refugees living in South Korea (48 males, 129 females; mean age 38.22±12.24 years) and South Koreans (112 males, 203 females; mean age 39.48±10.32 years) completed the following questionnaires: the Self-reported(More)
We established and tested an unconstrained sleep apnea monitoring method using a polyvinylidene (PVDF) film-based sensor for continuous and accurate monitoring of apneic events occurred during sleep. Twenty-six sleep apnea patients and six normal subjects participated in this study. Subjects' respiratory signals were measured using the PVDF-based sensor(More)
Our goal was to examine the relationship between attention and suicidal ideation in a school-based adolescent population. This cross-sectional study involved 2,462 students from eight high schools in South Korea (1,021 males and 1,441 females, mean age 17.3 ± 0.6 years). The participants completed the Beck Scale for Suicide Ideation (SSI) and the Beck(More)
OBJECTIVE The effect of transdermal nicotine patch on sleep physiology is not well established. The current study aimed to examine the influence of nicotine patch on homeostatic sleep propensity and autonomic nervous system. METHODS We studied 16 non-smoking young healthy volunteers with nocturnal polysomnography in a double blind crossover design between(More)
STUDY OBJECTIVES To examine the resting-state functional connectivity (FC) between subcortical regions in relation to whole-brain activity in patients with psychophysiological insomnia (PI) and changes following cognitive-behavioral therapy for insomnia (CBTi). METHODS The FC between subcortical seed regions (caudate, putamen, pallidum, amygdala,(More)
BACKGROUND Obstructive sleep apnea syndrome (OSAS) and poor sleep quality both increase blood pressure (BP). This study aimed to find the sex effects and the role of poor sleep quality on systolic BP (SBP) and diastolic BP (DBP) in OSAS patients. METHODS Polysomnographic findings, morning BP values, and clinical data of 460 subjects (348 men; 112 women)(More)
OBJECTIVE In the present study, it was hypothesized that the sleep electroencephalogram (EEG) characteristics of young (<30 yrs) and elderly (>55 yrs) OSAS patients would differ. METHODS We analyzed 76 sleep EEG recordings from OSAS patients (young group: n=40, mean age: 24.3±4.9 yrs; elderly group: n=36, mean age: 59.1±4.9 yrs), which were obtained(More)
OBJECTIVE To evaluate the effect of obesity on obstructive sleep apnea syndrome (OSAS) by age in relation to anthropometric measurements. METHODS The medical records of 1,110 participants diagnosed with OSAS were analyzed according to age. All participants underwent nocturnal polysomnography and had their body mass index, waist circumference, neck(More)
  • 1