Yoko Komada

Summary

Affiliation: Tokyo Medical University
Country: Japan

Publications

  1. doi request reprint 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
  2. ncbi request reprint 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
  3. ncbi request reprint 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
  4. ncbi request reprint 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
  5. doi request reprint 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 population
    Akiko Ozaki
    School of Nursing, Faculty of Nursing, Toho University, Tokyo, Japan
    Sleep Med 13:200-6. 2012
  6. doi request reprint 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
  7. doi request reprint 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
  8. pmc Is nocturnal panic a distinct disease category? Comparison of clinical characteristics among patients with primary nocturnal panic, daytime panic, and coexistence of nocturnal and daytime panic
    Masaki Nakamura
    Japan Somnology Center, Neuropsychiatric Research Institute, Shibuya ku, Tokyo, Japan
    J Clin Sleep Med 9:461-7. 2013
  9. doi request reprint 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
  10. doi request reprint 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

Collaborators

Detail Information

Publications32

  1. doi request reprint 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...
  2. ncbi request reprint 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...
  3. ncbi request reprint 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...
  4. ncbi request reprint 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...
  5. doi request reprint 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 population
    Akiko Ozaki
    School of Nursing, Faculty of Nursing, Toho University, Tokyo, Japan
    Sleep Med 13:200-6. 2012
    ....
  6. doi request reprint 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...
  7. doi request reprint 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...
  8. pmc Is nocturnal panic a distinct disease category? Comparison of clinical characteristics among patients with primary nocturnal panic, daytime panic, and coexistence of nocturnal and daytime panic
    Masaki Nakamura
    Japan Somnology Center, Neuropsychiatric Research Institute, Shibuya ku, Tokyo, Japan
    J Clin Sleep Med 9:461-7. 2013
    ....
  9. doi request reprint 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...
  10. doi request reprint 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...
  11. doi request reprint 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...
  12. doi request reprint The factors associated with preferences for napping and drinking coffee as countermeasures for sleepiness at the wheel among Japanese drivers
    Shoichi Asaoka
    Department of Somnology, Tokyo Medical University, 6 7 1 Nishishinjyuku, Shinjuku ku, Tokyo 160 0023, Japan
    Sleep Med 13:354-61. 2012
    ..We explored differences between professional and non-professional drivers in terms of the factors associated with preferences for generally accepted, effective countermeasures for sleepiness at the wheel--i.e., napping and drinking coffee...
  13. doi request reprint Prevalence and clinical characteristics of restless legs syndrome in chronic kidney disease patients
    Sayaka Aritake-Okada
    Department of Somnology, Tokyo Medical University, Tokyo 160 0023, Japan
    Sleep Med 12:1031-3. 2011
    ....
  14. doi request reprint 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)...
  15. ncbi request reprint Clinical significance and correlates of behaviorally induced insufficient sleep syndrome
    Yoko 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...
  16. doi request reprint Factors associated with shift work disorder in nurses working with rapid-rotation schedules in Japan: the nurses' sleep health project
    Shoichi Asaoka
    Department of Somnology, Tokyo Medical University, Tokyo, Japan
    Chronobiol Int 30:628-36. 2013
    ....
  17. doi request reprint Change in frequency of periodic limb movements during sleep with usage of continuous positive airway pressure in obstructive sleep apnea syndrome
    Sayaka Aritake-Okada
    Department of Somnology, Tokyo Medical University, Tokyo 160 0023, Japan
    J Neurol Sci 317:13-6. 2012
    ..The results suggest that elderly patients with higher AHI at BPSG may present with CPAP-emergent PLMS...
  18. doi request reprint 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
    ....
  19. doi request reprint 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...
  20. doi request reprint 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...
  21. doi request reprint 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...
  22. doi request reprint Impact of frequency of nightmares comorbid with insomnia on depression in Japanese rural community residents: a cross-sectional study
    Shun Nakajima
    Department of Somnology, Tokyo Medical University, Tokyo, Japan Japan Somnology Center, Neuropsychiatric Research Institute, Tokyo, Japan Yoyogi Sleep Disorder Center, Tokyo, Japan
    Sleep Med 15:371-4. 2014
    ..Nightmares and insomnia are known to be associated with the development and aggravation of depression. Our community-based study was conducted to clarify the relation between the impacts of nightmares and insomnia on depression...
  23. ncbi request reprint Possible mechanism of secondary narcolepsy with a long sleep time following surgery for craniopharyngioma
    Keisuke Sakuta
    Department of Psychiatry, Tokyo Medical University, Japan
    Intern Med 51:413-7. 2012
    ..SPECT using (123)I-IMP showed frontal hypoperfusion. These connection damages could have been responsible for the occurrence of narcolepsy-like symptoms and long daytime sleep episodes in this case...
  24. pmc Health-related quality of life among drug-naïve patients with narcolepsy with cataplexy, narcolepsy without cataplexy, and idiopathic hypersomnia without long sleep time
    Akiko 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...
  25. doi request reprint 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...
  26. doi request reprint 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...
  27. ncbi request reprint [Associated factors for drowsy driving among licensed drivers]
    Yoko Komada
    Department of Somnology, Tokyo Medical University
    Nihon Koshu Eisei Zasshi 57:1066-74. 2010
    ..The aim of this study is to reveal factors associated with both dozing off at the wheel and motor vehicle accidents (MVAs) with sleep apnea syndrome (SAS) as well as other descriptive variables for driving set as independent factors...
  28. ncbi request reprint A pilot study of the relationship between bowel habits and sleep health by actigraphy measurement and fecal flora analysis
    Shigeyuki Ono
    Beauty Care Research Laboratories, Beauty Research Center, Kao Corporation, Tokyo, Japan
    J Physiol Anthropol 27:145-51. 2008
    ..There may be a relationship between bowel habits and sleep health. Bowel habits such as FC might be a risk factor for sleep disorders...
  29. doi request reprint Melatonin profile and its relation to circadian rhythm sleep disorders in Angelman syndrome patients
    Yoshikazu Takaesu
    Department of Psychiatry, Tokyo Medical University, Japan
    Sleep Med 13:1164-70. 2012
    ..However, the circadian aspect of sleep disorders in AS and an effective treatment for the disorder have yet to be established...
  30. doi request reprint Daytime dysfunction in children with restless legs syndrome
    Naomichi Furudate
    Department of Somnology, Tokyo Medical University, Tokyo, Japan Department of Psychiatry, Tokyo Medical University, Tokyo, Japan
    J Neurol Sci 336:232-6. 2014
    ..Sixteen out of twenty-three cases were successfully treated primarily with iron supplement. Some children with RLS have daytime dysfunction; however, this can be treated with iron supplements...
  31. ncbi request reprint [Sleep related eating disorder]
    Yuichi Inoue
    Department of Somnology, Tokyo Medical University
    Seishin Shinkeigaku Zasshi 112:912-20. 2010
    ..Cognitive-behavioral therapy is ineffective, but pharmacotherapy is very effective in controlling SRED. Especially, studies have shown that the anti-seizure medication topiramate may be an effective treatment for SRED...
  32. ncbi request reprint Effects of acute simulated microgravity on nocturnal sleep, daytime vigilance, and psychomotor performance: comparison of horizontal and 6 degrees head-down bed rest
    Yoko Komada
    Japan Somnology Center, Neuropsychiatric Research Institute, Geriatric Mental Health, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
    Percept Mot Skills 103:307-17. 2006
    ..These results suggest that nocturnal sleep, daytime vigilance, and psychophysiological functions were not disturbed in head-down sleep conditions, although there was a mild deterioration of higher attentional function in the morning...