Clinical significance and correlates of behaviorally induced insufficient sleep syndromeYoko Komada
Japan Somnology Center, Neuropsychiatric Research Institute, Shibuya, Tokyo, Japan
Sleep Med 9:851-6. 2008
..The aim of this study was to investigate the demographic variables and clinical characteristics of behaviorally induced insufficient sleep syndrome (BIISS) and to compare it with the other major hypersomnia disorders...
Quality of life in patients with narcolepsy with cataplexy, narcolepsy without cataplexy, and idiopathic hypersomnia without long sleep time: comparison between patients on psychostimulants, drug-naïve patients and the general Japanese populationAkiko Ozaki
School of Nursing, Faculty of Nursing, Toho University, Tokyo, Japan
Sleep Med 13:200-6. 2012
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- Correlations among insomnia symptoms, sleep medication use and depressive symptoms
Yoko Komada
Department of Somnology, Tokyo Medical University, Tokyo, Japan
Psychiatry Clin Neurosci 65:20-9. 2011
..To elucidate the factors associated with insomnia symptoms and the use of sleep medication, and the correlations among insomnia symptoms, sleep medication use and depressive symptoms in the general population...
- Short sleep duration and long spells of driving are associated with the occurrence of Japanese drivers' rear-end collisions and single-car accidents
Takashi Abe
Japan Somnology Center, Neuropsychiatric Research Institute, Tokyo, Japan
J Sleep Res 19:310-6. 2010
..To prevent such accidents, countermeasures must be considered in light of the characteristics of drivers involved in each type of accident described above...
- Differences in findings of nocturnal polysomnography and multiple sleep latency test between narcolepsy and idiopathic hypersomnia
Yoichiro Takei
Japan Somnology Center, Neuropsychiatric Research Institute, 1 24 10 Yoyogi, Shibuya ku, Tokyo, Japan
Clin Neurophysiol 123:137-41. 2012
..To compare differences in nocturnal and daytime polysomnographic findings between narcolepsy (NA) with and without cataplexy (CA) and idiopathic hypersomnia without long sleep time (IHS w/o LST)...
- Relation between morningness-eveningness score and depressive symptoms among patients with delayed sleep phase syndrome
Takashi Abe
Japan Somnology Center, Neuropsychiatric Research Institute, Tokyo, Japan
Sleep Med 12:680-4. 2011
..This study was undertaken to investigate the prevalence, characteristics, and factors associated with depressive symptoms among DSPS patients...
- Short sleep duration and irregular bedtime are associated with increased behavioral problems among Japanese preschool-age children
Yoko Komada
Department of Somnology, Tokyo Medical University, Tokyo, Japan
Tohoku J Exp Med 224:127-36. 2011
..In conclusion, appropriate management of children's sleep by their mothers is necessary for promoting sleep-related health of children...
- Insomnia as a risk for depression: a longitudinal epidemiologic study on a Japanese rural cohort
Isa Okajima
Japan Somnology Center, Neuropsychiatric Research Institute, Tokyo, Japan
J Clin Psychiatry 73:377-83. 2012
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- Relationship between napping pattern and nocturnal sleep among Japanese nursery school children
Yoko Komada
Department of Somnology, Tokyo Medical University, Shinjuku ku, Tokyo, Japan
Sleep Med 13:107-10. 2012
..The objectives of this study were to describe the daytime nap durations of Japanese nursery school children and to elucidate their relationship to nocturnal bedtimes...
- Detecting deteriorated vigilance using percentage of eyelid closure time during behavioral maintenance of wakefulness tests
Takashi Abe
Japan Somnology Center, Neuropsychiatric Research Institute, Tokyo, Japan
Int J Psychophysiol 82:269-74. 2011
..2±0.2/20 trial/min) when PERCLOS was less than 11.5% per minute. Results suggest that, among the ocular variables, PERCLOS can prevent error or accident caused by low vigilance most effectively...
Health-related quality of life among drug-naïve patients with narcolepsy with cataplexy, narcolepsy without cataplexy, and idiopathic hypersomnia without long sleep timeAkiko Ozaki
Department of Community Health Nursing, School of Nursing, Faculty of Medicine, Toho University, Tokyo, Japan
J Clin Sleep Med 4:572-8. 2008
..Factors associated with the occurrence of automobile accidents are also discussed...
- A two-year follow-up study on the symptoms of sleep disturbances/insomnia and their effects on daytime functioning
Yoko Komada
Department of Somnology, Tokyo Medical University, Japan
Sleep Med 13:1115-21. 2012
..This study attempts to identify changes in the symptoms of sleep disturbances/insomnia over a two-year course and their effects on daytime functioning...
- Effects of insomnia and sleep medication on health-related quality of life
Taeko Sasai
Japan Somnology Center, Neuropsychiatric Research Institute, Tokyo, Japan
Sleep Med 11:452-7. 2010
..Factors associated with deterioration of the mental component summary (MCS) score and physical component summary (PCS) score were investigated...
- Gender differences in the clinical characteristics among Japanese patients with obstructive sleep apnea syndrome
Kumiko Yukawa
Department of Otolaryngology, Tokyo Medical University, Tokyo, Japan
Chest 135:337-43. 2009
..The aim of the present study was to clarify the clinical patient characteristics of Japanese women and men with OSAS...
- Excessive daytime sleepiness among Japanese public transportation drivers engaged in shiftwork
Shoichi Asaoka
Department of Somnology, Tokyo Medical University, Tokyo, Japan
J Occup Environ Med 52:813-8. 2010
..To explore the actual condition of sleep disorders underlying subjective excessive daytime sleepiness (EDS) among train and bus drivers engaged in shiftwork...
- Effects of nasal continuous positive airway pressure on panic disorder comorbid with obstructive sleep apnea syndrome
Yoshikazu Takaesu
Department of Psychiatry, Tokyo Medical University, Tokyo, Japan
Sleep Med 13:156-60. 2012
..In this study, we examined the efficacy of CPAP on PD comorbid with OSAS by conducting a randomized crossover study using sham CPAP as control...
- Comparison of clinical characteristics among narcolepsy with and without cataplexy and idiopathic hypersomnia without long sleep time, focusing on HLA-DRB1( *)1501/DQB1( *)0602 finding
Taeko Sasai
Japan Somnology Center, Neuropsychiatric Research Institute, Tokyo, Japan
Sleep Med 10:961-6. 2009
..We investigated clinical features of NA w/o CA, particularly addressing HLA-DRB1( *)1501/DQB1( *)0602...
- Elevated risk of motor vehicle accident for male drivers with obstructive sleep apnea syndrome in the Tokyo metropolitan area
Yoko Komada
Department of Somnology, Tokyo Medical University, Tokyo, Japan
Tohoku J Exp Med 219:11-6. 2009
..In conclusion, early diagnosis and treatment of OSAS drivers especially with serious respiratory disorder should be made to prevent multiple MVAs...
- Short sleep duration, snoring and subjective sleep insufficiency are independent factors associated with both falling asleep and feeling sleepiness while driving
Takashi Abe
Japan Somnology Center, Neuropsychiatric Research Institute, Japan
Intern Med 51:3253-60. 2012
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- Irregular sleep habits of parents are associated with increased sleep problems and daytime sleepiness of children
Yoko Komada
Department of Somnology, Tokyo Medical University, Tokyo, Japan
Tohoku J Exp Med 219:85-9. 2009
..Mothers' sleep habits have a stronger influence on their children's sleep than fathers'. Our study indicates the importance of promoting sleep hygiene that encourages healthy sleep for all family members...
