DANIEL KRIPKE

Summary

Affiliation: University of California
Country: USA

Publications

  1. pmc Evaluation of two circadian rhythm questionnaires for screening for the delayed sleep phase disorder
    Min Kyu Rhee
    Department of Psychology, Gyeongsang National University, Jinju, Republic of Korea
    Psychiatry Investig 9:236-44. 2012
  2. pmc Does bright light have an anxiolytic effect? - an open trial
    Shawn D Youngstedt
    Department of Exercise Science, Norman J, Arnold School of Public Health University of South Carolina, Columbia, SC 29208 USA
    BMC Psychiatry 7:62. 2007
  3. pmc Bright green light treatment of depression for older adults [ISRCTN69400161]
    Richard T Loving
    Department of Psychiatry, University of California, San Diego, USA
    BMC Psychiatry 5:42. 2005
  4. pmc Measurement of illumination exposure in postpartum women
    Emily J Wang
    Department of Psychiatry, University of California, San Diego 92093 0667, USA
    BMC Psychiatry 3:5. 2003
  5. pmc Bright light treatment of depression for older adults [ISRCTN55452501]
    Richard T Loving
    Department of Psychiatry, University of California, San Diego, USA
    BMC Psychiatry 5:41. 2005
  6. ncbi request reprint Melatonin excretion with affect disorders over age 60
    Daniel F Kripke
    Department of Psychiatry, University of California, San Diego, La Jolla, CA 92093 0667, USA
    Psychiatry Res 118:47-54. 2003
  7. ncbi request reprint Actigraphy suggests age-related differences in napping and nocturnal sleep
    In Young Yoon
    Department of Psychiatry and Sam and Rose Stein, Institute for Research on Aging, University of California, San Diego, CA 92093 0667, USA
    J Sleep Res 12:87-93. 2003
  8. ncbi request reprint Circadian phase in adults of contrasting ages
    D F Kripke
    Department of Psychiatry, University of California, San Diego, La Jolla, CA 92093 0667, USA
    Chronobiol Int 22:695-709. 2005
  9. ncbi request reprint PRC bisection tests
    Daniel F Kripke
    Department of Psychiatry, University of California, San Diego, California 92093 0667, USA
    Chronobiol Int 20:1117-23. 2003
  10. pmc Ethnicity, sleep, mood, and illumination in postmenopausal women
    Daniel F Kripke
    Department of Psychiatry, University of California, San Diego, CA, USA
    BMC Psychiatry 4:8. 2004

Research Grants

  1. GENETIC VARIANTS IN CIRCADIAN RHYTHM SLEEP DISORDERS
    DANIEL KRIPKE; Fiscal Year: 2004
  2. Light Stimulation of Luteinizing Hormone
    DANIEL KRIPKE; Fiscal Year: 2004
  3. PHASE RESPONSE CURVES FOR EXERCISE AND BRIGHT LIGHT
    DANIEL KRIPKE; Fiscal Year: 1999
  4. Light Stimulation of Luteinizing Hormone
    DANIEL KRIPKE; Fiscal Year: 2005
  5. GENETIC VARIANTS IN CIRCADIAN RHYTHM SLEEP DISORDERS
    DANIEL KRIPKE; Fiscal Year: 2006
  6. Light Stimulation of Luteinizing Hormone
    DANIEL KRIPKE; Fiscal Year: 2006
  7. PHASE RESPONSE CURVES FOR EXERCISE AND BRIGHT LIGHT
    DANIEL KRIPKE; Fiscal Year: 2002
  8. VERIFICATION OF CIRCADIAN ABNORMALITIES IN AGING
    DANIEL KRIPKE; Fiscal Year: 2002
  9. ILLUMINATION IN HUMAN AGING: SLEEP AND MOOD EFFECTS
    DANIEL KRIPKE; Fiscal Year: 2003
  10. ILLUMINATION IN HUMAN AGING: SLEEP AND MOOD EFFECTS
    DANIEL KRIPKE; Fiscal Year: 2004

Detail Information

Publications63

  1. pmc Evaluation of two circadian rhythm questionnaires for screening for the delayed sleep phase disorder
    Min Kyu Rhee
    Department of Psychology, Gyeongsang National University, Jinju, Republic of Korea
    Psychiatry Investig 9:236-44. 2012
    ..This study was to evaluate these two chronotype questionnaires for screening of DSPD...
  2. pmc Does bright light have an anxiolytic effect? - an open trial
    Shawn D Youngstedt
    Department of Exercise Science, Norman J, Arnold School of Public Health University of South Carolina, Columbia, SC 29208 USA
    BMC Psychiatry 7:62. 2007
    ..The aim of this open trial was to examine the influence of acute bright light exposure on anxiety in older and young adults...
  3. pmc Bright green light treatment of depression for older adults [ISRCTN69400161]
    Richard T Loving
    Department of Psychiatry, University of California, San Diego, USA
    BMC Psychiatry 5:42. 2005
    ..Because spectral responsiveness may differ by age, we examined whether green light would provide efficient antidepressant treatment in an elder age group...
  4. pmc Measurement of illumination exposure in postpartum women
    Emily J Wang
    Department of Psychiatry, University of California, San Diego 92093 0667, USA
    BMC Psychiatry 3:5. 2003
    ..The goal of this study was to examine the levels of illumination experienced by postpartum mothers and to discover any relationship between light exposure and mood levels experienced during the postpartum period...
  5. pmc Bright light treatment of depression for older adults [ISRCTN55452501]
    Richard T Loving
    Department of Psychiatry, University of California, San Diego, USA
    BMC Psychiatry 5:41. 2005
    ..The incidence of insomnia and depression in the elder population is significant. It is hoped that use of light treatment for this group could provide safe, economic, and effective rapid recovery...
  6. ncbi request reprint Melatonin excretion with affect disorders over age 60
    Daniel F Kripke
    Department of Psychiatry, University of California, San Diego, La Jolla, CA 92093 0667, USA
    Psychiatry Res 118:47-54. 2003
    ..These results are only weakly consistent with a photoperiodic hypothesis of depression...
  7. ncbi request reprint Actigraphy suggests age-related differences in napping and nocturnal sleep
    In Young Yoon
    Department of Psychiatry and Sam and Rose Stein, Institute for Research on Aging, University of California, San Diego, CA 92093 0667, USA
    J Sleep Res 12:87-93. 2003
    ..Maintaining alertness during the evening (e.g. by bright light exposure or moderate exercise) would be a possible approach to delay wake-up times in older adults...
  8. ncbi request reprint Circadian phase in adults of contrasting ages
    D F Kripke
    Department of Psychiatry, University of California, San Diego, La Jolla, CA 92093 0667, USA
    Chronobiol Int 22:695-709. 2005
    ..In summary, there was no evidence for circadian desynchronization associated with aging, but there was evidence of some rearrangement of the internal phase-angles among the studied circadian rhythms...
  9. ncbi request reprint PRC bisection tests
    Daniel F Kripke
    Department of Psychiatry, University of California, San Diego, California 92093 0667, USA
    Chronobiol Int 20:1117-23. 2003
    ..Also, the bisection procedure yields an estimate of the inflection point of the phase response curve. A method is given to estimate the power of the PRC bisection test...
  10. pmc Ethnicity, sleep, mood, and illumination in postmenopausal women
    Daniel F Kripke
    Department of Psychiatry, University of California, San Diego, CA, USA
    BMC Psychiatry 4:8. 2004
    ..This study examined how ethnic differences in sleep and depression were related to environmental illumination and circadian rhythms...
  11. pmc Mortality related to actigraphic long and short sleep
    Daniel F Kripke
    Department of Psychiatry, University of California, San Diego, La Jolla, CA 92037, USA
    Sleep Med 12:28-33. 2011
    ..5 h or shorter than 6.5 h predicts increased mortality risk. This study examined if prospectively-determined objective sleep duration, as estimated by wrist actigraphy, was associated with mortality risks...
  12. doi request reprint Possibility that certain hypnotics might cause cancer in skin
    Daniel F Kripke
    Department of Psychiatry, University of California, San Diego and The Scripps Clinic Sleep Center, La Jolla, California 92093 0667, USA
    J Sleep Res 17:245-50. 2008
    ..Together with the epidemiologic data and laboratory studies, the available evidence signals that new hypnotics may increase cancer risk. Due to limitations in available data, confirmatory research is needed...
  13. ncbi request reprint Melatonin: marvel or marker?
    D F Kripke
    Department of Psychiatry and the Sam and Rose Stein Institute for Research on Aging, University of California, San Diego, La Jolla 92093 0667, USA
    Ann Med 30:81-7. 1998
    ..These data suggest that melatonin is a useful marker of circadian rhythm phase disorders, but suggest a need for more caution in melatonin administration...
  14. pmc Circadian polymorphisms associated with affective disorders
    Daniel F Kripke
    Department of Psychiatry 0939, University of California, San Diego, La Jolla, CA 92093 0939, USA
    J Circadian Rhythms 7:2. 2009
    ..Since genetic susceptibilities contribute a strong component to affective disorders, we explored whether circadian gene polymorphisms were associated with affective disorders in four complementary studies...
  15. ncbi request reprint Light treatment for nonseasonal depression: speed, efficacy, and combined treatment
    D F Kripke
    Department of Psychiatry, University of California, San Diego, La Jolla 92093 0667, USA
    J Affect Disord 49:109-17. 1998
    ..Using bright light for treating major depressive disorders which are not seasonal needs reassessment...
  16. ncbi request reprint Mortality associated with sleep duration and insomnia
    Daniel F Kripke
    Department of Psychiatry 0667, University of California, San Diego, 9500 Gilman Dr, La Jolla, CA 92093 0667, USA
    Arch Gen Psychiatry 59:131-6. 2002
    ..Treatment strategies may be guided by what sleep durations predict optimal survival and whether insomnia might signal mortality risks...
  17. pmc Weak evidence of bright light effects on human LH and FSH
    Daniel F Kripke
    Department of Psychiatry, University of California, San Diego, La Jolla, California 92093, USA
    J Circadian Rhythms 8:5. 2010
    ..There is some evidence that seasonal breeding in humans is regulated by similar mechanisms, and that light stimulates LH secretion, but primate responses seem complex...
  18. pmc Polymorphisms in melatonin synthesis pathways: possible influences on depression
    Daniel F Kripke
    Department of Psychiatry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA
    J Circadian Rhythms 9:8. 2011
    ..abstract:..
  19. pmc Circadian phase response curves to light in older and young women and men
    Daniel F Kripke
    Department of Psychiatry and Sam and Rose Stein Institute on Aging, University of California, San Diego 0667, La Jolla, California 92093 0667, USA
    J Circadian Rhythms 5:4. 2007
    ..This study tested the hypotheses that older adults have absent or weaker phase-shift responses to light (3000 lux), and that women's responses might differ from those of men...
  20. pmc Greater incidence of depression with hypnotic use than with placebo
    Daniel F Kripke
    The Scripps Clinic Sleep Center, 10666 North Torrey Pines Road, La Jolla, California 92037, USA
    BMC Psychiatry 7:42. 2007
    ..This study contrasted the incidence of depression among subjects receiving hypnotics in randomized controlled trials versus those receiving placebo...
  21. pmc Meta-analyses of hypnotics and infections: eszopiclone, ramelteon, zaleplon, and zolpidem
    Florendo L Joya
    Scripps Clinic Sleep Center, La Jolla, CA 92037, USA
    J Clin Sleep Med 5:377-83. 2009
    ..Recent meta-analyses raising concern about risks of hypnotics suggest a need for more clarification of these risks...
  22. ncbi request reprint No association of 6-sulfatoxymelatonin with in-bed 60-Hz magnetic field exposure or illumination level among older adults
    Shawn D Youngstedt
    Department of Psychiatry, University of California at San Diego, La Jolla, California, 92093, USA
    Environ Res 89:201-9. 2002
    ..Illumination acrophase and amplitude were significantly associated with aMT6s acrophase. These data suggest no influence of nocturnal environmental MF exposure on aMT6s excretion in older adults...
  23. ncbi request reprint Effect of laser trabeculoplasty on nocturnal intraocular pressure in medically treated glaucoma patients
    Alexander C Lee
    Hamilton Glaucoma Center and Department of Ophthalmology, University of California, San Diego, La Jolla, California 92093 0946, USA
    Ophthalmology 114:666-70. 2007
    ..To evaluate the effects of laser trabeculoplasty on 24-hour intraocular pressure (IOP) in a group of medically treated open-angle glaucoma patients...
  24. ncbi request reprint Twenty-four-hour intraocular pressure pattern associated with early glaucomatous changes
    John H K Liu
    Hamilton Glaucoma Center and Department of Ophthalmology, University of California, San Diego, La Jolla, California 92093, USA
    Invest Ophthalmol Vis Sci 44:1586-90. 2003
    ..To characterize the 24-hour pattern of intraocular pressure (IOP) in untreated patients with newly diagnosed early glaucomatous changes...
  25. ncbi request reprint Illumination of upper and middle visual fields produces equivalent suppression of melatonin in older volunteers
    Julian S Smith
    The Sam and Rose Stein Institute for Research on Aging, Department of Psychiatry, University of California, San Diego, La Jolla 92093 0667, USA
    Chronobiol Int 19:883-91. 2002
    ..Clinical comparative testing would be valuable. In addition, this study demonstrates that significant suppression of melatonin may be achieved through the use of bright light in healthy older volunteers...
  26. pmc Plasma melatonin circadian rhythm disturbances during pregnancy and postpartum in depressed women and women with personal or family histories of depression
    Barbara L Parry
    Department of Psychiatry, University of California, San Diego, 9500 Gilman Dr, La Jolla, CA 92093 0804, USA
    Am J Psychiatry 165:1551-8. 2008
    ..The purpose of this study was to test the hypothesis that disturbances in levels of plasma melatonin differentiate pregnant and postpartum women with major depression from matched pregnant and postpartum healthy comparison women...
  27. pmc Self-reported sleep complaints with long and short sleep: a nationally representative sample
    Michael A Grandner
    San Diego State University University of California, San Diego Joint Doctoral Program in Clinical Psychology, San Diego, California 92093 0667, USA
    Psychosom Med 66:239-41. 2004
    ..Recent evidence shows that habitual sleep duration greater than 7 hours is associated with increased rates of mortality. This study compared the rates of sleep problems in both long and short sleepers...
  28. ncbi request reprint Comparison of the nocturnal effects of once-daily timolol and latanoprost on intraocular pressure
    John H K Liu
    Hamilton Glaucoma Center and Department of Ophthalmology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093 0946, USA
    Am J Ophthalmol 138:389-95. 2004
    ..To compare the nocturnal effects of once-daily timolol and latanoprost on intraocular pressure (IOP) in patients with ocular hypertension or early glaucomatous changes...
  29. ncbi request reprint No association of sleep with total daily physical activity in normal sleepers
    Shawn D Youngstedt
    Department of Psychiatry, Sam and Rose Stein Institute for Research on Aging, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093 0667, USA
    Physiol Behav 78:395-401. 2003
    ..These results fail to support epidemiologic data on the value of exercise for sleep, but are consistent with experimental evidence showing only modest effects of exercise on sleep...
  30. pmc Effect of light treatment on sleep and circadian rhythms in demented nursing home patients
    Sonia Ancoli-Israel
    Department of Psychiatry, University of California San Diego, USA
    J Am Geriatr Soc 50:282-9. 2002
    ..To determine whether fragmented sleep in nursing home patients would improve with increased exposure to bright light...
  31. ncbi request reprint Bright light augments antidepressant effects of medication and wake therapy
    Richard T Loving
    Department of Psychiatry, University of California, San Diego, La Jolla, California 92093 0667, USA
    Depress Anxiety 16:1-3. 2002
    ..002). The group receiving placebo did not improve, except for one outlier. The benefit of bright light was significant compared to placebo with removal of the outlier (P<0.025)...
  32. ncbi request reprint Luteinizing hormone following light exposure in healthy young men
    In Young Yoon
    Department of Psychiatry and Sam and Rose Stein, Institute for Research on Aging, 0667, University of California, 9500 Gilman Drive, La Jolla, San Diego, CA 92093 0667, USA
    Neurosci Lett 341:25-8. 2003
    ..The acrophases and offsets of aMT6s were advanced, but the duration of aMT6s excretion was not changed after BL. Light stimulation of LH could have interesting applications in psychiatry and reproductive endocrinology...
  33. pmc Light exposure is related to social and emotional functioning and to quality of life in older women
    Michael A Grandner
    Joint Doctoral Program in Clinical Psychology, San Diego State University, and University of California, San Diego, La Jolla, CA, United States
    Psychiatry Res 143:35-42. 2006
    ..Increased light exposure is related to improved quality of life and social and emotional functioning...
  34. ncbi request reprint Circadian phase-delaying effects of bright light alone and combined with exercise in humans
    Shawn D Youngstedt
    Department of Psychiatry, University of California, San Diego, La Jolla, California 92093 0667, USA
    Am J Physiol Regul Integr Comp Physiol 282:R259-66. 2002
    ..Within the limited exercise and light parameters of this study, the results suggest that exercise does not reliably modulate phase-shifting effects of late night bright light in humans...
  35. ncbi request reprint Laboratory assessment of diurnal and nocturnal ocular perfusion pressures in humans
    John H K Liu
    Department of Opthalmology, University of California, San Diego, La Jolla, California 92093 0946, USA
    J Ocul Pharmacol Ther 19:291-7. 2003
    ..The diurnal-to-nocturnal increase of ocular perfusion pressure was larger in the older group than in the younger group...
  36. ncbi request reprint Nocturnal elevation of intraocular pressure is detectable in the sitting position
    John H K Liu
    Hamilton Glaucoma Center and Department of Ophthalmology, University of California, San Diego, La Jolla, California 92093, USA
    Invest Ophthalmol Vis Sci 44:4439-42. 2003
    ..This study was undertaken to investigate whether a similar elevation of IOP can be detected when experimental subjects are in the sitting position...
  37. ncbi request reprint Twenty-four-hour pattern of intraocular pressure in young adults with moderate to severe myopia
    John H K Liu
    Department of Ophthalmology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093 0946, USA
    Invest Ophthalmol Vis Sci 43:2351-5. 2002
    ..To characterize the 24-hour change of intraocular pressure (IOP) in young adults with moderate to severe myopia...
  38. ncbi request reprint Sustained effect of travoprost on diurnal and nocturnal intraocular pressure
    Arthur J Sit
    Hamilton Glaucoma Center and Department of Ophthalmology, University of California, San Diego, La Jolla, 92093, USA
    Am J Ophthalmol 141:1131-3. 2006
    ..To assess the diurnal and nocturnal persistency of intraocular pressure (IOP) reduction after omission of up to two doses of once-daily topical travoprost in patients with open-angle glaucoma or ocular hypertension...
  39. ncbi request reprint Depression and endogenous melatonin in postmenopausal women
    Arja Tuunainen
    Department of Psychiatry, University of California San Diego, 9500 Gilman Drive, Dept 0667, La Jolla, CA 92093 0667, USA
    J Affect Disord 69:149-58. 2002
    ..Previous reports on melatonin secretion in depression are numerous but conflicting. There are very few studies relating the duration of the nocturnal melatonin peak to depression, and the results of those studies have been equivocal...
  40. ncbi request reprint Naps and circadian rhythms in postmenopausal women
    In Young Yoon
    Department of Psychiatry, 0667, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093 0667, USA
    J Gerontol A Biol Sci Med Sci 59:844-8. 2004
    ..Napping patterns and relationships among naps, circadian rhythms, and nocturnal sleep were evaluated in postmenopausal women. Naps and nocturnal sleep were compared between depressed women and healthy volunteers...
  41. ncbi request reprint Menopause: neuroendocrine changes and hormone replacement therapy
    Barbara L Parry
    Department of Psychiatry, University of California, San Diego, USA
    J Am Med Womens Assoc 59:135-45. 2004
    ..We evaluated the effects of hormone replacement therapy (HRT) alone and in combination with a selective serotonin reuptake inhibitor on mood, cognition, and neuroendocrine parameters in peri- and postmenopausal women...
  42. doi request reprint Evaluation of immobility time for sleep latency in actigraphy
    Kyu Young Chae
    Scripps Clinic Sleep Center, W207, 10666 N Torrey Pines Road, La Jolla, CA 92037, USA
    Sleep Med 10:621-5. 2009
    ..In this study, we examined the accuracy of the Actiwatch-L instrument with Actiware((R)) software version 5.0 (Minimitter-Respironics, Bend, Oregon)...
  43. ncbi request reprint Long sleep and mortality: rationale for sleep restriction
    Shawn D Youngstedt
    Department of Psychiatry and Sam and Rose Stein Institute for Research on Aging, University of California, San Diego, Mail Code 0667, 9500 Gilman Dr, La Jolla, CA 92093, USA
    Sleep Med Rev 8:159-74. 2004
    ..Sleep restriction may be most beneficial for older adults, who tend to spend excessive time in bed and have more sleep fragmentation compared with young adults...
  44. ncbi request reprint Evening light exposure: implications for sleep and depression
    Geralyn M Wallace-Guy
    Department of Psychiatry and the Sam and Rose Stein Institute for Research on Aging, University of California San Diego, La Jolla, California 92093, USA
    J Am Geriatr Soc 50:738-9. 2002
    ..To examine whether dim illumination in the evening is a factor in sleep disturbances of aging, depression, and circadian phase advance...
  45. ncbi request reprint Examination of the clock gene Cryptochrome 1 in bipolar disorder: mutational analysis and absence of evidence for linkage or association
    Caroline M Nievergelt
    Department of Psychiatry, University of California, San Diego, La Jolla, CA 92093, USA
    Psychiatr Genet 15:45-52. 2005
    ..Additional, more powerful, studies involving Cry1 and other circadian clock genes need to be tested before an association of circadian abnormalities with bipolar disorder can be excluded...
  46. ncbi request reprint Efficacy of enhanced evening light for advanced sleep phase syndrome
    Christopher R Palmer
    Department of Psychiatry, Sam and Rose Stein Institute for Research on Aging, University of California, San Diego, La Jolla 92093 0667, USA
    Behav Sleep Med 1:213-26. 2003
    ..Although compliance was good and the new enhanced evening light therapy design was well tolerated, the benefits were statistically equivocal...
  47. ncbi request reprint Delayed and advanced sleep phase symptoms
    Katsuhisa Ando
    Department of Psychiatry, University of California, San Diego, California, USA
    Isr J Psychiatry Relat Sci 39:11-8. 2002
    ..Thus, complaints suggesting circadian rhythm advance or delay mismatches were common, but evidently such complaints do not usually correspond with objective abnormalities of observed sleep timing...
  48. pmc Suggestive evidence for association of the circadian genes PERIOD3 and ARNTL with bipolar disorder
    Caroline M Nievergelt
    Department of Psychiatry, University of California, San Diego, La Jolla, California 92093 0603, USA
    Am J Med Genet B Neuropsychiatr Genet 141:234-41. 2006
    ..However, the trends for ARNTL and PER3 are suggestive of their involvement in bipolar disorder and warrant further study in a larger sample...
  49. ncbi request reprint Long-term follow-up of periodic limb movements in sleep in older adults
    Philip Gehrman
    SDSU UCSD Joint Doctoral Program in Clinical Psychology, University of California, San Diego, USA
    Sleep 25:340-3. 2002
    ..The goal of this study was to examine the natural history of periodic limb movements in sleep (PLMS) in older adults...
  50. doi request reprint Circadian rhythm of CSF monoamines and hypocretin-1 in restless legs syndrome and Parkinson's disease
    J Steven Poceta
    Scripps Clinic Division of Neurology and Scripps Clinic Sleep Center, The Scripps Research Institute, Molecular and Integrative Neurosciences Department, La Jolla, CA, USA
    Sleep Med 10:129-33. 2009
    ..This circadian variation could underlie the symptoms of RLS and sleep-related variation in motor function in PD...
  51. ncbi request reprint Factor structure and measurement invariance of the Women's Health Initiative Insomnia Rating Scale
    Douglas W Levine
    Department of Public Health Sciences, Wake Forest University School of Medicine, Winston Salem, North Carolina 27157, USA
    Psychol Assess 15:123-36. 2003
    ..Structural equation modeling revealed no major differences in factor structure across age and race-ethnic groups. WHIIRS norms for race-ethnicity and age subgroups are detailed...
  52. ncbi request reprint Brightening depression
    Anna Wirz-Justice
    Science 303:467-9. 2004
  53. ncbi request reprint Age-related changes of circadian rhythms and sleep-wake cycles
    In Young Yoon
    Department of Psychiatry and Sam and Rose Stein Institute for Research on Aging, University of California at San Diego, La Jolla 92093, USA
    J Am Geriatr Soc 51:1085-91. 2003
    ..To compare relationships between the sleep-wake cycle and endogenous circadian rhythms in young and older adults and to examine correlates between evening naps and circadian rhythms in older adults...
  54. ncbi request reprint Bright-light mask treatment of delayed sleep phase syndrome
    Roger J Cole
    Synchrony Applied Health Sciences, Del Mar, CA 92014 3805, USA
    J Biol Rhythms 17:89-101. 2002
    ..04). We conclude that bright-light mask treatment advances circadian phase and provides clinical benefit in DSPS individuals whose initial circadian delay is relatively severe...
  55. pmc Self-reported sleep latency in postmenopausal women
    Doo Heum Park
    Department of Psychiatry, Konkuk University School of Medicine, Seoul, Korea
    J Korean Med Sci 22:1007-14. 2007
    ..Therapeutic approaches suggested for trouble falling asleep might include increased daylight exposure, improvements in general health, and modification of anti-hypertensive pharmacotherapy...
  56. ncbi request reprint More prominent reactivity in mood than activity and sleep induced by differential light exposure due to seasonal and local differences
    Doo Heum Park
    Department of Psychiatry, Konkuk University School of Medicine, Seoul, Korea
    Chronobiol Int 24:905-20. 2007
    ..Therefore, mood might be more reactive than activity and sleep in the seasonal variation induced by differential light exposure...
  57. ncbi request reprint Suicides in the midnight sun--a study of seasonality in suicides in West Greenland
    Karin Sparring Björkstén
    Department of Psychiatry, Nacka Hospital, 3 tr, SE 131 83 Nacka, Sweden
    Psychiatry Res 133:205-13. 2005
    ..Violent methods of suicide were used by 93%. Depression has been reported uncommonly. High alcohol intake and extended periods of light in the summer may contribute to impulsive-aggressive summer suicides...
  58. ncbi request reprint Benefits of light treatment for depression
    Daniel F Kripke
    Am J Psychiatry 163:162-3; author reply 163. 2006
  59. ncbi request reprint Reliability and validity of the Women's Health Initiative Insomnia Rating Scale
    Douglas W Levine
    Department of Public Health Sciences, Wake Forest University School of Medicine, Winston Salem, North Carolina 27157, USA
    Psychol Assess 15:137-48. 2003
    ..Results showed that differences in the objective indicators could be detected by the WHIIRS. Findings suggest that a between-group mean difference of approximately 0.50 of a standard deviation on the WHIIRS may be clinically meaningful...
  60. ncbi request reprint Ineffectiveness of intermittent zolpidem
    Daniel F Kripke
    Sleep Med Rev 7:193; author reply 195-6. 2003
  61. ncbi request reprint Polysomnographic sleep state from wrist activity
    Daniel F Kripke
    Sleep 26:13; author reply 13. 2003
  62. ncbi request reprint Do we sleep too much?
    Daniel F Kripke
    Sleep 27:13-4. 2004

Research Grants28

  1. GENETIC VARIANTS IN CIRCADIAN RHYTHM SLEEP DISORDERS
    DANIEL KRIPKE; Fiscal Year: 2004
    ..abstract_text> ..
  2. Light Stimulation of Luteinizing Hormone
    DANIEL KRIPKE; Fiscal Year: 2004
    ..abstract_text> ..
  3. PHASE RESPONSE CURVES FOR EXERCISE AND BRIGHT LIGHT
    DANIEL KRIPKE; Fiscal Year: 1999
    ..Resultant circadian phases will then be determined to compute the phase response curves, in order to examine interactions of stimulus (exercise vs. light), age, and gender on circadian responsiveness. ..
  4. Light Stimulation of Luteinizing Hormone
    DANIEL KRIPKE; Fiscal Year: 2005
    ..abstract_text> ..
  5. GENETIC VARIANTS IN CIRCADIAN RHYTHM SLEEP DISORDERS
    DANIEL KRIPKE; Fiscal Year: 2006
    ..abstract_text> ..
  6. Light Stimulation of Luteinizing Hormone
    DANIEL KRIPKE; Fiscal Year: 2006
    ..abstract_text> ..
  7. PHASE RESPONSE CURVES FOR EXERCISE AND BRIGHT LIGHT
    DANIEL KRIPKE; Fiscal Year: 2002
    ..Resultant circadian phases will then be determined to compute the phase response curves, in order to examine interactions of stimulus (exercise vs. light), age, and gender on circadian responsiveness. ..
  8. VERIFICATION OF CIRCADIAN ABNORMALITIES IN AGING
    DANIEL KRIPKE; Fiscal Year: 2002
    ....
  9. ILLUMINATION IN HUMAN AGING: SLEEP AND MOOD EFFECTS
    DANIEL KRIPKE; Fiscal Year: 2003
    ..The success of the treatment in lowering the GDS depression score and in reducing sleep complaints will be examined. ..
  10. ILLUMINATION IN HUMAN AGING: SLEEP AND MOOD EFFECTS
    DANIEL KRIPKE; Fiscal Year: 2004
    ..The success of the treatment in lowering the GDS depression score and in reducing sleep complaints will be examined. ..
  11. GENETIC VARIANTS IN CIRCADIAN RHYTHM SLEEP DISORDERS
    DANIEL KRIPKE; Fiscal Year: 2005
    ..abstract_text> ..
  12. ILLUMINATION IN HUMAN AGING: SLEEP AND MOOD EFFECTS
    DANIEL KRIPKE; Fiscal Year: 2002
    ..The success of the treatment in lowering the GDS depression score and in reducing sleep complaints will be examined. ..
  13. ILLUMINATION IN HUMAN AGING: SLEEP AND MOOD EFFECTS
    DANIEL KRIPKE; Fiscal Year: 2001
    ..The success of the treatment in lowering the GDS depression score and in reducing sleep complaints will be examined. ..
  14. ILLUMINATION IN HUMAN AGING: SLEEP AND MOOD EFFECTS
    DANIEL KRIPKE; Fiscal Year: 2000
    ..The success of the treatment in lowering the GDS depression score and in reducing sleep complaints will be examined. ..
  15. VERIFICATION OF CIRCADIAN ABNORMALITIES IN AGING
    DANIEL KRIPKE; Fiscal Year: 1999
    ....
  16. VERIFICATION OF CIRCADIAN ABNORMALITIES IN AGING
    DANIEL KRIPKE; Fiscal Year: 2000
    ....
  17. PHASE RESPONSE CURVES FOR EXERCISE AND BRIGHT LIGHT
    DANIEL KRIPKE; Fiscal Year: 2000
    ..Resultant circadian phases will then be determined to compute the phase response curves, in order to examine interactions of stimulus (exercise vs. light), age, and gender on circadian responsiveness. ..
  18. ILLUMINATION IN HUMAN AGING: SLEEP AND MOOD EFFECTS
    DANIEL KRIPKE; Fiscal Year: 2001
    ..The success of the treatment in lowering the GDS depression score and in reducing sleep complaints will be examined. ..
  19. VERIFICATION OF CIRCADIAN ABNORMALITIES IN AGING
    DANIEL KRIPKE; Fiscal Year: 2001
    ....
  20. PHASE RESPONSE CURVES FOR EXERCISE AND BRIGHT LIGHT
    DANIEL KRIPKE; Fiscal Year: 2001
    ..Resultant circadian phases will then be determined to compute the phase response curves, in order to examine interactions of stimulus (exercise vs. light), age, and gender on circadian responsiveness. ..