CHARMANE EASTMAN

Summary

Affiliation: Rush University Medical Center
Country: USA

Publications

  1. pmc Shift work: health, performance and safety problems, traditional countermeasures, and innovative management strategies to reduce circadian misalignment
    Mark R Smith
    Biological Rhythms Research Laboratory, Rush University Medical Center, Chicago, IL, USA
    Nat Sci Sleep 4:111-32. 2012
  2. pmc Blacks (African Americans) have shorter free-running circadian periods than whites (Caucasian Americans)
    Charmane I Eastman
    Biological Rhythms Research Laboratory, Behavioral Sciences Department, Rush University Medical Center, Chicago, IL 60612, USA
    Chronobiol Int 29:1072-7. 2012
  3. pmc Human phase response curve to intermittent blue light using a commercially available device
    Victoria L Revell
    University of Surrey, Guildford, Surrey GU2 7XH, UK
    J Physiol 590:4859-68. 2012
  4. pmc Phase delaying the human circadian clock with a single light pulse and moderate delay of the sleep/dark episode: no influence of iris color
    Jillian L Canton
    Biological Rhythms Research Laboratory, Department of Behavioral Sciences, Rush University Medical Center, Chicago, IL, USA
    J Circadian Rhythms 7:8. 2009
  5. ncbi request reprint Bright light treatment of winter depression: a placebo-controlled trial
    C I Eastman
    Department of Psychology, Rush Presbyterian St Luke s Medical Center, Chicago, Ill 60612, USA
    Arch Gen Psychiatry 55:883-9. 1998
  6. pmc Advancing circadian rhythms before eastward flight: a strategy to prevent or reduce jet lag
    Charmane I Eastman
    Biological Rhythms Research Laboratory, Psychology Department, Rush University Medical Center, Chicago, IL 60612, USA
    Sleep 28:33-44. 2005
  7. ncbi request reprint How to use light and dark to produce circadian adaptation to night shift work
    C I Eastman
    Psychology Department, Rush Presbyterian St Luke s Medical Center, Chicago, IL 60612, USA
    Ann Med 31:87-98. 1999
  8. ncbi request reprint Failure of extraocular light to facilitate circadian rhythm reentrainment in humans
    C I Eastman
    Biological Rhythms Research Laboratory, Rush Presbyterian St Luke s Medical Center, Chicago, Illinois 60612, USA
    Chronobiol Int 17:807-26. 2000
  9. ncbi request reprint A compromise phase position for permanent night shift workers: circadian phase after two night shifts with scheduled sleep and light/dark exposure
    Clara Lee
    Biological Rhythms Research Laboratory, Rush University Medical Center, Chicago, Illinois 60612, USA
    Chronobiol Int 23:859-75. 2006
  10. ncbi request reprint Morning melatonin has limited benefit as a soporific for daytime sleep after night work
    Mark R Smith
    Biological Rhythms Research Laboratory, Rush University Medical Center, Chicago, IL 60612, USA
    Chronobiol Int 22:873-88. 2005

Collaborators

Detail Information

Publications37

  1. pmc Shift work: health, performance and safety problems, traditional countermeasures, and innovative management strategies to reduce circadian misalignment
    Mark R Smith
    Biological Rhythms Research Laboratory, Rush University Medical Center, Chicago, IL, USA
    Nat Sci Sleep 4:111-32. 2012
    ..We present a diagram of a sleep-and-light schedule to reduce circadian misalignment in permanent night work, or a rotation between evenings and nights, and give practical advice on how to implement this type of plan...
  2. pmc Blacks (African Americans) have shorter free-running circadian periods than whites (Caucasian Americans)
    Charmane I Eastman
    Biological Rhythms Research Laboratory, Behavioral Sciences Department, Rush University Medical Center, Chicago, IL 60612, USA
    Chronobiol Int 29:1072-7. 2012
    ..On the other hand, Whites should be more likely to have trouble adapting to the early work and school schedules imposed by society. More research is needed to confirm these results and predictions...
  3. pmc Human phase response curve to intermittent blue light using a commercially available device
    Victoria L Revell
    University of Surrey, Guildford, Surrey GU2 7XH, UK
    J Physiol 590:4859-68. 2012
    ..The delay region started a few hours before bedtime and extended through the night. This is the first PRC to be constructed to blue light and to a stimulus that could be used in the real world...
  4. pmc Phase delaying the human circadian clock with a single light pulse and moderate delay of the sleep/dark episode: no influence of iris color
    Jillian L Canton
    Biological Rhythms Research Laboratory, Department of Behavioral Sciences, Rush University Medical Center, Chicago, IL, USA
    J Circadian Rhythms 7:8. 2009
    ....
  5. ncbi request reprint Bright light treatment of winter depression: a placebo-controlled trial
    C I Eastman
    Department of Psychology, Rush Presbyterian St Luke s Medical Center, Chicago, Ill 60612, USA
    Arch Gen Psychiatry 55:883-9. 1998
    ..However, the studies with the best placebo controls have not been able to demonstrate that light treatment has a benefit beyond its placebo effect...
  6. pmc Advancing circadian rhythms before eastward flight: a strategy to prevent or reduce jet lag
    Charmane I Eastman
    Biological Rhythms Research Laboratory, Psychology Department, Rush University Medical Center, Chicago, IL 60612, USA
    Sleep 28:33-44. 2005
    ..To develop a practical pre-eastward flight treatment to advance circadian rhythms as much as possible but not misalign them with sleep...
  7. ncbi request reprint How to use light and dark to produce circadian adaptation to night shift work
    C I Eastman
    Psychology Department, Rush Presbyterian St Luke s Medical Center, Chicago, IL 60612, USA
    Ann Med 31:87-98. 1999
    ..One specific schedule is presented as an example. Finally, we discuss phase-response curves to light and clarify common misconceptions about the production of circadian rhythm phase shifts...
  8. ncbi request reprint Failure of extraocular light to facilitate circadian rhythm reentrainment in humans
    C I Eastman
    Biological Rhythms Research Laboratory, Rush Presbyterian St Luke s Medical Center, Chicago, Illinois 60612, USA
    Chronobiol Int 17:807-26. 2000
    ..Further research is necessary to determine the conditions under which extraocular light might produce phase shifts in human circadian rhythms...
  9. ncbi request reprint A compromise phase position for permanent night shift workers: circadian phase after two night shifts with scheduled sleep and light/dark exposure
    Clara Lee
    Biological Rhythms Research Laboratory, Rush University Medical Center, Chicago, Illinois 60612, USA
    Chronobiol Int 23:859-75. 2006
    ....
  10. ncbi request reprint Morning melatonin has limited benefit as a soporific for daytime sleep after night work
    Mark R Smith
    Biological Rhythms Research Laboratory, Rush University Medical Center, Chicago, IL 60612, USA
    Chronobiol Int 22:873-88. 2005
    ..It was concluded that, the soporific effect of melatonin is small when administered prior to 7 h daytime sleep periods following night shift work...
  11. pmc Phase advancing the human circadian clock with blue-enriched polychromatic light
    Mark R Smith
    Biological Rhythms Research Laboratory, Rush University Medical Center, Suite 425, 1645 W Jackson Boulevard, Chicago, IL 60612, USA
    Sleep Med 10:287-94. 2009
    ..We assessed whether bright polychromatic lamps enriched in the short-wavelength portion of the visible light spectrum could produce larger phase advances than standard bright white lamps...
  12. pmc Phase delaying the human circadian clock with blue-enriched polychromatic light
    Mark R Smith
    Rush University Medical Center, Chicago, Illinois 60612, USA
    Chronobiol Int 26:709-25. 2009
    ....
  13. pmc How to trick mother nature into letting you fly around or stay up all night
    Victoria L Revell
    Biological Rhythms Research Laboratory, Rush University Medical Center, Chicago, IL 60612, USA
    J Biol Rhythms 20:353-65. 2005
    ..They demonstrate how jet lag could be prevented entirely if rhythms are shifted before the flight using their preflight plan and discuss the combination of interventions that they now recommend for night shift workers...
  14. doi request reprint Shaping the light/dark pattern for circadian adaptation to night shift work
    Mark R Smith
    Biological Rhythms Research Laboratory, Chicago, IL, USA
    Physiol Behav 95:449-56. 2008
    ..Subsequent studies will reveal whether the target phase is achieved and maintained through more alternations of night shifts and days off...
  15. ncbi request reprint Combinations of bright light, scheduled dark, sunglasses, and melatonin to facilitate circadian entrainment to night shift work
    Stephanie J Crowley
    Biological Rhythms Research Laboratory, Rush University Medical Center, Chicago, IL 60612, USA
    J Biol Rhythms 18:513-23. 2003
    ....
  16. pmc Racial differences in the human endogenous circadian period
    Mark R Smith
    Biological Rhythms Research Laboratory, Department of Behavioral Sciences, Rush University Medical Center, Chicago, IL, USA
    PLoS ONE 4:e6014. 2009
    ....
  17. pmc Melatonin phase shifts human circadian rhythms in a placebo-controlled simulated night-work study
    Katherine M Sharkey
    Biological Rhythms Research Laboratory, Rush Presbyterian St Luke s Medical Center, Chicago, Illinois 60612, USA
    Am J Physiol Regul Integr Comp Physiol 282:R454-63. 2002
    ..0 mg, 56% with 0.5 mg, and 0% with placebo). Melatonin could be used to promote adaptation to night work and jet travel...
  18. doi request reprint Practical interventions to promote circadian adaptation to permanent night shift work: study 4
    Mark R Smith
    Biological Rhythms Research Laboratory, Department of Behavioral Sciences and Graduate Division of Neuroscience, Rush University Medical Center, Chicago, IL 60612, USA
    J Biol Rhythms 24:161-72. 2009
    ....
  19. pmc Human phase response curves to three days of daily melatonin: 0.5 mg versus 3.0 mg
    Helen J Burgess
    Biological Rhythms Research Laboratory, Department of Behavioral Sciences, Rush University Medical Center, Chicago, IL 60612, USA
    J Clin Endocrinol Metab 95:3325-31. 2010
    ..Phase response curves (PRCs) to melatonin exist, but none compare different doses of melatonin using the same protocol...
  20. pmc A three pulse phase response curve to three milligrams of melatonin in humans
    Helen J Burgess
    Department of Behavioural Sciences, Rush University Medical Center, 1645 W Jackson Blvd, Suite 425, Chicago, IL 60612, USA
    J Physiol 586:639-47. 2008
    ..This new PRC will aid in determining the optimal time to administer exogenous melatonin to achieve desired phase shifts and demonstrates that using exogenous melatonin as a sleep aid at night has minimal phase shifting effects...
  21. pmc Advancing human circadian rhythms with afternoon melatonin and morning intermittent bright light
    Victoria L Revell
    Biological Rhythms Research Lab, Rush University Medical Center, Chicago, Illinois 60612, USA
    J Clin Endocrinol Metab 91:54-9. 2006
    ..Both light and melatonin can be used to phase shift the human circadian clock, but the phase-advancing effect of the combination has not been extensively investigated...
  22. pmc Short nights reduce light-induced circadian phase delays in humans
    Helen J Burgess
    Biological Rhythms Research Laboratory, Department of Behavioral Sciences, Rush University Medical Center, Chicago IL 60612, USA
    Sleep 29:25-30. 2006
    ..Short sleep episodes are common in modern society. We recently demonstrated that short nights reduce phase advances to light. Here we show that short nights also reduce phase delays to light...
  23. ncbi request reprint A late wake time phase delays the human dim light melatonin rhythm
    Helen J Burgess
    Biological Rhythms Research Laboratory, Department of Behavioral Sciences, Rush University Medical Center, 1645 W Jackson Blvd, Suite 425, Chicago, IL 60612, USA
    Neurosci Lett 395:191-5. 2006
    ..Furthermore, the results suggest that when people truncate their sleep by waking early their circadian clocks phase advance and when people wake late their circadian clocks phase delay...
  24. ncbi request reprint Complete or partial circadian re-entrainment improves performance, alertness, and mood during night-shift work
    Stephanie J Crowley
    Biological Rhythms Research Laboratory, Rush University Medical Center, Chicago, IL 60612, USA
    Sleep 27:1077-87. 2004
    ..To assess performance, alertness, and mood during the night shift and subsequent daytime sleep in relation to the degree of re-alignment (re-entrainment) of circadian rhythms with a night-work, day-sleep schedule...
  25. ncbi request reprint Early versus late bedtimes phase shift the human dim light melatonin rhythm despite a fixed morning lights on time
    Helen J Burgess
    Biological Rhythms Research Laboratory, Rush University Medical Center, Chicago, IL, USA
    Neurosci Lett 356:115-8. 2004
    ..These results suggest that when people truncate their sleep by delaying their bedtime they also significantly phase delay their circadian rhythms and/or when people advance their bedtime their circadian rhythms advance...
  26. pmc Short nights attenuate light-induced circadian phase advances in humans
    Helen J Burgess
    Biological Rhythms Research Laboratory, Rush University Medical Center, 1645 West Jackson Boulevard, Suite 425, Chicago, Illinois 60612, USA
    J Clin Endocrinol Metab 90:4437-40. 2005
    ..Although it is recognized that there is an increasing trend in modern society toward shorter sleep time, it is not known how short nights (long photoperiods) affect the human circadian system...
  27. pmc Preflight adjustment to eastward travel: 3 days of advancing sleep with and without morning bright light
    Helen J Burgess
    Biological Rhythms Research Laboratory, Rush Presbyterian St Luke s Medical Center, Chicago, IL 60612, USA
    J Biol Rhythms 18:318-28. 2003
    ..More days of preflight treatment could be used to produce even larger phase advances and potentially eliminate jet lag...
  28. ncbi request reprint Circadian phase determined from melatonin profiles is reproducible after 1 wk in subjects who sleep later on weekends
    Victoria L Revell
    Biological Rhythms Research Lab, Rush University Medical Center, Chicago, IL 60612, USA
    J Pineal Res 39:195-200. 2005
    ..Thus, circadian phase can be measured a week in advance of any phase shifting intervention and, as long as the prescribed sleep and morning light schedule is maintained, the phase at the start of treatment can be confidently estimated...
  29. pmc The dim light melatonin onset following fixed and free sleep schedules
    Helen J Burgess
    Biological Rhythms Research Laboratory, Rush University Medical Center, Chicago, IL 60612, USA
    J Sleep Res 14:229-37. 2005
    ....
  30. ncbi request reprint Circadian phase-shifting effects of nocturnal exercise in older compared with young adults
    Erin K Baehr
    Department of Psychology, Northwestern University, Evanston 60208, USA
    Am J Physiol Regul Integr Comp Physiol 284:R1542-50. 2003
    ..Therefore, exercise may potentially be a useful treatment to help adjust circadian rhythms in older and young adults...
  31. ncbi request reprint Sleep logs of young adults with self-selected sleep times predict the dim light melatonin onset
    Stacia K Martin
    Biological Rhythms Research Laboratory, Rush Presbyterian St Luke s Medical Center, Chicago, IL 60612, USA
    Chronobiol Int 19:695-707. 2002
    ..48). We conclude that the circadian phase of normal, healthy day-active young adults can be accurately predicted using sleep times recorded on sleep logs (and verified by actigraphy), even when the sleep schedules are irregular...
  32. ncbi request reprint Bright light therapy for winter depression--is phase advancing beneficial?
    Helen J Burgess
    Biological Rhythms Research Laboratory, Department of Psychology, Rush University Medical Center, Chicago, IL 60612, USA
    Chronobiol Int 21:759-75. 2004
    ..In any case, regardless of the mechanism for the antidepressant effect of morning light, it can be enhanced when patients sleep at the ideal circadian phase and reduced when they sleep at a more abnormal circadian phase...
  33. ncbi request reprint Bright light, dark and melatonin can promote circadian adaptation in night shift workers
    Helen J Burgess
    Biological Rhythms Research Laboratory, Rush Presbyterian St Luke s Medical Center, 1645 W Jackson Blvd, Suite 425, Chicago, IL 60612, USA
    Sleep Med Rev 6:407-20. 2002
    ..We conclude this review by discussing the impact of individual differences on possible circadian interventions and issues associated with the use of bright light interventions in the field...
  34. pmc Night shift performance is improved by a compromise circadian phase position: study 3. Circadian phase after 7 night shifts with an intervening weekend off
    Mark R Smith
    Biological Rhythms Research Laboratory, Department of Behavioral Sciences and Graduate Division of Neuroscience, Rush University Medical Center Chicago, IL 60612, USA
    Sleep 31:1639-45. 2008
    ..This is predicted to improve night shift alertness and performance while permitting adequate late night sleep on days off...
  35. ncbi request reprint The effects of prior light history on the suppression of melatonin by light in humans
    Marc Hebert
    Biological Rhythms Research Laboratory, Rush Presbyterian St Luke s Medical Center, 1645 W Jackson Boulevard, Chicago, IL 60612, USA
    J Pineal Res 33:198-203. 2002
    ..In conclusion, this study suggests that the circadian system's sensitivity to light can be affected by a recent change in light history...
  36. pmc A compromise circadian phase position for permanent night work improves mood, fatigue, and performance
    Mark R Smith
    Biological Rhythms Research Laboratory, Department of Behavioral Science, Rush University Medical Center, Chicago, IL 60612, USA
    Sleep 32:1481-9. 2009
    ..To assess night shift improvements in mood, fatigue, and performance when the misalignment between circadian rhythms and a night shift, day sleep schedule is reduced...
  37. pmc Human tau in an ultradian light-dark cycle
    Helen J Burgess
    J Biol Rhythms 23:374-6. 2008

Research Grants28

  1. REDUCING JET-LAG WITH PRACTICAL CIRCADIAN TREATMENTS
    CHARMANE EASTMAN; Fiscal Year: 2003
    ..The goal is to develop practical recommendations for real travelers. ..
  2. Phase response curves for home remedies to treat circadian misalignment
    CHARMANE EASTMAN; Fiscal Year: 2007
    ....
  3. REDUCING JET-LAG WITH PRACTICAL CIRCADIAN TREATMENTS
    CHARMANE EASTMAN; Fiscal Year: 2002
    ..The goal is to develop practical recommendations for real travelers. ..
  4. Blue Light and Melatonin for Treatment of Circadian Rhythm Disorders and Jet Lag
    CHARMANE EASTMAN; Fiscal Year: 2006
    ..These studies will yield practical recommendations for phase shifting the circadian clock and may also provide information about how the human circadian clock responds to light. ..
  5. PRACTICAL CIRCADIAN INTERVENTIONS FOR NIGHT SHIFT WORK
    CHARMANE EASTMAN; Fiscal Year: 2007
    ..This work will have important implications for the health, safety, and well being of the night shift worker. ..
  6. Phase response curves for home remedies to treat circadian misalignment
    CHARMANE EASTMAN; Fiscal Year: 2009
    ....
  7. PRACTICAL CIRCADIAN INTERVENTIONS FOR NIGHT SHIFT WORK
    CHARMANE EASTMAN; Fiscal Year: 1999
    ..The goal is to advise shift workers and their employers about the relative benefits of the various combinations of interventions. ..
  8. Blue Light and Melatonin for Treatment of Circadian Rhythm Disorders and Jet Lag
    CHARMANE EASTMAN; Fiscal Year: 2009
    ..These studies will yield practical recommendations for phase shifting the circadian clock and may also provide information about how the human circadian clock responds to light. ..
  9. Phase response curves for home remedies to treat circadian misalignment
    Charmane I Eastman; Fiscal Year: 2010
    ....
  10. Blue Light and Melatonin for Treatment of Circadian Rhythm Disorders and Jet Lag
    Charmane I Eastman; Fiscal Year: 2010
    ..These studies will yield practical recommendations for phase shifting the circadian clock and may also provide information about how the human circadian clock responds to light. ..
  11. Phase response curves for home remedies to treat circadian misalignment
    CHARMANE EASTMAN; Fiscal Year: 2009
    ....
  12. PRACTICAL CIRCADIAN INTERVENTIONS FOR NIGHT SHIFT WORK
    CHARMANE EASTMAN; Fiscal Year: 2006
    ..This work will have important implications for the health, safety, and well being of the night shift worker. ..
  13. Effects of Short and Long Nights on the Circadian Clock
    CHARMANE EASTMAN; Fiscal Year: 2006
    ..This work has important implications for the sleep deprived general population and for jet travelers and night shift workers who must phase shift their circadian rhythms in order to adjust to phase shifts in their light/dark cycle. ..
  14. PRACTICAL CIRCADIAN INTERVENTIONS FOR NIGHT SHIFT WORK
    CHARMANE EASTMAN; Fiscal Year: 2005
    ..This work will have important implications for the health, safety, and well being of the night shift worker. ..
  15. PRACTICAL CIRCADIAN INTERVENTIONS FOR NIGHT SHIFT WORK
    CHARMANE EASTMAN; Fiscal Year: 2000
    ..The goal is to advise shift workers and their employers about the relative benefits of the various combinations of interventions. ..
  16. REDUCING JET-LAG WITH PRACTICAL CIRCADIAN TREATMENTS
    CHARMANE EASTMAN; Fiscal Year: 2001
    ..The goal is to develop practical recommendations for real travelers. ..
  17. PRACTICAL CIRCADIAN INTERVENTIONS FOR NIGHT SHIFT WORK
    CHARMANE EASTMAN; Fiscal Year: 2003
    ..This work will have important implications for the health, safety, and well being of the night shift worker. ..
  18. Effects of Short and Long Nights on the Circadian Clock
    CHARMANE EASTMAN; Fiscal Year: 2003
    ..This work has important implications for the sleep deprived general population and for jet travelers and night shift workers who must phase shift their circadian rhythms in order to adjust to phase shifts in their light/dark cycle. ..
  19. REDUCING JET-LAG WITH PRACTICAL CIRCADIAN TREATMENTS
    CHARMANE EASTMAN; Fiscal Year: 2004
    ..The goal is to develop practical recommendations for real travelers. ..
  20. PRACTICAL CIRCADIAN INTERVENTIONS FOR NIGHT SHIFT WORK
    CHARMANE EASTMAN; Fiscal Year: 2004
    ..This work will have important implications for the health, safety, and well being of the night shift worker. ..
  21. Effects of Short and Long Nights on the Circadian Clock
    CHARMANE EASTMAN; Fiscal Year: 2005
    ..This work has important implications for the sleep deprived general population and for jet travelers and night shift workers who must phase shift their circadian rhythms in order to adjust to phase shifts in their light/dark cycle. ..
  22. Phase response curves for home remedies to treat circadian misalignment
    Charmane I Eastman; Fiscal Year: 2010
    ....
  23. Blue Light and Melatonin for Treatment of Circadian Rhythm Disorders and Jet Lag
    CHARMANE EASTMAN; Fiscal Year: 2007
    ..These studies will yield practical recommendations for phase shifting the circadian clock and may also provide information about how the human circadian clock responds to light. ..
  24. PRACTICAL CIRCADIAN INTERVENTIONS FOR NIGHT SHIFT WORK
    CHARMANE EASTMAN; Fiscal Year: 2001
    ..The goal is to advise shift workers and their employers about the relative benefits of the various combinations of interventions. ..
  25. Effects of Short and Long Nights on the Circadian Clock
    CHARMANE EASTMAN; Fiscal Year: 2004
    ..This work has important implications for the sleep deprived general population and for jet travelers and night shift workers who must phase shift their circadian rhythms in order to adjust to phase shifts in their light/dark cycle. ..
  26. Phase response curves for home remedies to treat circadian misalignment
    CHARMANE EASTMAN; Fiscal Year: 2009
    ....