L C Lack

Summary

Affiliation: Flinders University
Country: Australia

Publications

  1. ncbi A brief afternoon nap following nocturnal sleep restriction: which nap duration is most recuperative?
    Amber Brooks
    School of Psychology, Flinders University, Adelaide, SA, Australia
    Sleep 29:831-40. 2006
  2. ncbi Treating chronobiological components of chronic insomnia
    Leon C Lack
    Flinders University, Department of Psychology, G P O Box 2100, Adelaide, SA 5001, Australia
    Sleep Med 8:637-44. 2007
  3. pmc Chronotype differences in circadian rhythms of temperature, melatonin, and sleepiness as measured in a modified constant routine protocol
    Leon Lack
    School of Psychology, Flinders University, Adelaide, South Australia, Australia
    Nat Sci Sleep 1:1-8. 2009
  4. doi The relationship between insomnia and body temperatures
    Leon C Lack
    School of Psychology, Flinders University, South Australia, Australia
    Sleep Med Rev 12:307-17. 2008
  5. ncbi Chronobiology of sleep in humans
    L C Lack
    School of Psychology, Flinders University, Adelaide, South Australia, Australia
    Cell Mol Life Sci 64:1205-15. 2007
  6. ncbi Clinical management of delayed sleep phase disorder
    Leon C Lack
    School of Psychology, Flinders University, South Australia
    Behav Sleep Med 5:57-76. 2007
  7. ncbi The treatment of early-morning awakening insomnia with 2 evenings of bright light
    Leon Lack
    School of Psychology, Flinders University, GPO Box 2100, Adelaide, South Australia 5001
    Sleep 28:616-23. 2005
  8. ncbi Acute finger temperature changes preceding sleep onsets over a 45-h period
    Leon Lack
    Department of Psychology, School of Social Sciences, The Flinders University of South Australia, Bedford Park, South Australia, Australia
    J Sleep Res 11:275-82. 2002
  9. ncbi Light emitting diodes can be used to phase delay the melatonin rhythm
    H R Wright
    School of Psychology, Flinders University, Adelaide, South Australia 5001, Australia
    J Pineal Res 31:350-5. 2001
  10. ncbi Relationships between the circadian rhythms of finger temperature, core temperature, sleep latency, and subjective sleepiness
    Michael Gradisar
    School of Psychology, Faculty of Social Sciences, Flinders University of South Australia, Bedford Park, South Australia
    J Biol Rhythms 19:157-63. 2004

Detail Information

Publications23

  1. ncbi A brief afternoon nap following nocturnal sleep restriction: which nap duration is most recuperative?
    Amber Brooks
    School of Psychology, Flinders University, Adelaide, SA, Australia
    Sleep 29:831-40. 2006
    ..The purposes of this study were to compare the benefits of different length naps relative to no nap and to analyze the electroencephalographic elements that may account for the benefits...
  2. ncbi Treating chronobiological components of chronic insomnia
    Leon C Lack
    Flinders University, Department of Psychology, G P O Box 2100, Adelaide, SA 5001, Australia
    Sleep Med 8:637-44. 2007
    ....
  3. pmc Chronotype differences in circadian rhythms of temperature, melatonin, and sleepiness as measured in a modified constant routine protocol
    Leon Lack
    School of Psychology, Flinders University, Adelaide, South Australia, Australia
    Nat Sci Sleep 1:1-8. 2009
    ....
  4. doi The relationship between insomnia and body temperatures
    Leon C Lack
    School of Psychology, Flinders University, South Australia, Australia
    Sleep Med Rev 12:307-17. 2008
    ..Further studies of thermoregulation are needed in the typical home environment in which the insomnia is most evident...
  5. ncbi Chronobiology of sleep in humans
    L C Lack
    School of Psychology, Flinders University, Adelaide, South Australia, Australia
    Cell Mol Life Sci 64:1205-15. 2007
    ..Other less potent retiming effects may also be obtained from the judicious use of melatonin and exercise...
  6. ncbi Clinical management of delayed sleep phase disorder
    Leon C Lack
    School of Psychology, Flinders University, South Australia
    Behav Sleep Med 5:57-76. 2007
    ..These include therapies to phase change the delayed sleep circadian rhythm such as morning bright light exposure, exogenous melatonin administration, and chronotherapy as well as some behavioral strategies...
  7. ncbi The treatment of early-morning awakening insomnia with 2 evenings of bright light
    Leon Lack
    School of Psychology, Flinders University, GPO Box 2100, Adelaide, South Australia 5001
    Sleep 28:616-23. 2005
    ..To assess the effectiveness of brief bright-light therapy for the treatment of early-morning awakening insomnia...
  8. ncbi Acute finger temperature changes preceding sleep onsets over a 45-h period
    Leon Lack
    Department of Psychology, School of Social Sciences, The Flinders University of South Australia, Bedford Park, South Australia, Australia
    J Sleep Res 11:275-82. 2002
    ..This rapid increase of finger temperature was relatively consistent across the 45-h CR, despite very significant circadian variation of the pre-MSLT baseline finger temperature and homeostatic decrease of sleep latency...
  9. ncbi Light emitting diodes can be used to phase delay the melatonin rhythm
    H R Wright
    School of Psychology, Flinders University, Adelaide, South Australia 5001, Australia
    J Pineal Res 31:350-5. 2001
    ..These data suggest the portable LED light source is an effective way of delivering light to phase shift the melatonin rhythm, with the blue/green LED being the more effective of the two LEDs...
  10. ncbi Relationships between the circadian rhythms of finger temperature, core temperature, sleep latency, and subjective sleepiness
    Michael Gradisar
    School of Psychology, Faculty of Social Sciences, Flinders University of South Australia, Bedford Park, South Australia
    J Biol Rhythms 19:157-63. 2004
    ..29). Although these data are correlational, they are consistent with the notion that finger temperature changes drive core temperature changes, which determine changes of subjective and objective sleepiness...
  11. ncbi Effect of light wavelength on suppression and phase delay of the melatonin rhythm
    H R Wright
    School of Psychology, Flinders University, Adelaide, South Australia
    Chronobiol Int 18:801-8. 2001
    ..The shorter wavelengths also showed the greatest DLMO delay on night 2, ranging from 27 to 36 min. The results were consistent with the involvement of a scotopic mechanism in the regulation of circadian phase...
  12. ncbi Intensive Sleep Retraining treatment for chronic primary insomnia: a preliminary investigation
    Jodie Harris
    School of Psychology, Flinders University of South Australia, Adelaide, SA, Australia
    J Sleep Res 16:276-84. 2007
    ..Further exploration of this brief therapy is needed, with larger, randomized, placebo-controlled trials over longer follow-up periods, and in comparison to other traditional therapies for insomnia...
  13. ncbi Do chronic primary insomniacs have impaired heat loss when attempting sleep?
    Michael Gradisar
    Flinders University Sleep Reserach Laboratory, School of Psychology, Flinders University, Adelaide, S A, Australia
    Am J Physiol Regul Integr Comp Physiol 290:R1115-21. 2006
    ..0 +/- 0.2 degrees C) was significantly higher than good sleepers (36.8 +/- 0.2 degrees C; P = 0.03). Whether insomniacs could have impaired heat loss that is masked by elevated heat production is discussed...
  14. pmc The Flinders Fatigue Scale: preliminary psychometric properties and clinical sensitivity of a new scale for measuring daytime fatigue associated with insomnia
    Michael Gradisar
    School of Psychology, Flinders University, Adelaide, South Australia
    J Clin Sleep Med 3:722-8. 2007
    ..To evaluate the psychometric properties and clinical significance of a new scale for measuring daytime fatigue associated with insomnia: The Flinders Fatigue Scale (FFS)...
  15. pmc Does subjective sleepiness predict objective sleep propensity?
    Michelle Short
    School of Psychology, Flinders University, Adelaide, South Australia, Australia
    Sleep 33:123-9. 2010
    ..The present study evaluated whether eliciting subjective judgments of sleepiness after a 1-minute period of quiet with eyes closed would strengthen the relationship between subjective and objective measures...
  16. ncbi The short-term benefits of brief and long naps following nocturnal sleep restriction
    A J Tietzel
    Flinders University, Adelaide, Australia
    Sleep 24:293-300. 2001
    ..However, we conclude that the detrimental effects of sleep restriction were more rapidly and significantly ameliorated, at least within the hour following the nap, by a 10-minute afternoon nap...
  17. ncbi The rhythms of human sleep propensity and core body temperature
    L C Lack
    School of Psychology, Flinders University of South Australia, Adelaide, Australia
    J Sleep Res 5:1-11. 1996
    ..These results suggested the possibility that a common oscillator determines the timing of both the body temperature rhythm and the phases of the sleep propensity rhythm...
  18. ncbi Insomniacs' perception of wake instead of sleep
    Jeremy D Mercer
    School of Psychology, Flinders University, South Australia
    Sleep 25:564-71. 2002
    ..To establish if insomniacs' underestimation of sleep time is due to reduced ability to discriminate between sleeping and waking states...
  19. ncbi The recuperative value of brief and ultra-brief naps on alertness and cognitive performance
    Amber J Tietzel
    School of Psychology, Flinders University, Adelaide, SA, Australia
    J Sleep Res 11:213-8. 2002
    ..Further research is required to investigate whether the benefits of brief naps are because of the onset of stage 2 or delta wave sleep, or a specific duration of sleep between 90 s and 10 min...
  20. ncbi Factors associated with maintenance of wakefulness test mean sleep latency in patients with mild to moderate obstructive sleep apnoea and normal subjects
    Siobhan Banks
    Adelaide Institute for Sleep Health, Repatriation General Hospital, Daw Park, South Australia, Australia
    J Sleep Res 13:71-8. 2004
    ..Further comprehensive study is needed if the test is to be used in a diagnostically meaningful way...
  21. ncbi The Maintenance of Wakefulness Test and driving simulator performance
    Siobhan Banks
    Adelaide Institute for Sleep Health, Repatriation General Hospital Daw Park, Australia
    Sleep 28:1381-5. 2005
    ..This study examined the ability of 2 MWT trials to predict driving-simulator performance in healthy individuals...
  22. ncbi The maintenance of wakefulness test in normal healthy subjects
    Siobhan Banks
    Adelaide Institute for Sleep Health, Repatriation General Hospital, Daw Park, SA, Australia
    Sleep 27:799-802. 2004
    ..The Maintenance of Wakefulness Test (MWT) examines an individual's ability to stay awake in an environment of decreased sensory stimulation. Only 1 previous study has systematically examined the MWT in normal healthy subjects...
  23. ncbi Differential effects of light wavelength in phase advancing the melatonin rhythm
    Helen R Wright
    School of Psychology, Flinders University, Adelaide, South Australia, Australia
    J Pineal Res 36:140-4. 2004
    ..These results strengthen earlier findings that the human circadian system is more sensitive to the short wavelengths of light than the longer wavelengths...