Profiles

Arne Lowden

Arne Lowden

Docent

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Telephone 08-553 789 15
Email arne.lowden@su.se
Visiting address Frescati Hagväg 16 A
Room 326
Postal address Stressforskningsinstitutet 106 91 Stockholm

About me

Arne works as a sleep-and stress researcher and my research profile is “circadian rhythms, light behaviour, and sleep”. With sleep as a specialty, Arne is currently one of 30 certified sleep specialists now working in Sweden. He has primarily studied the adjustment problems for shift workers and flight personnel. He has also done studies of self-selected work hours, conducted experimental studies of nutrition and sleep, and studied how alertness, learning and performance can be improved in school. Recently, he has devoted time to studies, which includes effects of sleep and recovery from light impact in so-called light room, light at the school, lighting in windowless rooms, driving behavior at night in younger and older drivers and the effects of mobile phone use on sleep. Arne is also active as a teacher, which includes responsibility for the training course sleep, at the distance course "Lifestyle and Health" at SLU and also responsible for the training course element "Work Psychology and Health" in Psychology at the Karolinska Institute. He has actively participated in several conferences, nationally and internationally and have developed training materials for many courses, including "Shiftwork Driving Licence", published in collaboration with Prevent and "Food and sleep school" from the Swedish Dairy Association.

Education: PhD in Psychology 1999. Accredited sleep specialist 2010.

Publications

A selection from Stockholm University publication database
  • 2018. Arne Lowden (et al.).

    Natural daylight exposures in arctic regions vary substantially across seasons. Negative consequences have been observed in self-reports of sleep and daytime functions during the winter but have rarely been studied in detail. The focus of the present study set out to investigate sleep seasonality among indoor workers using objective and subjective measures. Sleep seasonality among daytime office workers (n = 32) in Kiruna (Sweden, 67.86° N, 20.23° E) was studied by comparing the same group of workers in a winter and summer week, including work and days off at the weekend, using actigraphs (motion loggers) and subjective ratings of alertness and mood. Actigraph analyses showed delayed sleep onset of 39 min in winter compared to the corresponding summer week (p < 0.0001) and shorter weekly sleep duration by 12 min (p = 0.0154). A delay of mid-sleep was present in winter at workdays (25 min, p < 0.0001) and more strongly delayed during days off (46 min, p < 0.0001). Sleepiness levels were higher in winter compared to summer (p < 0.05). Increased morning light exposure was associated with earlier mid-sleep (p < 0.001), while increased evening light exposure was associated with delay (p < 0.01). This study confirms earlier work that suggests that lack of natural daylight delays the sleep/wake cycle in a group of indoor workers, despite having access to electric lighting. Photic stimuli resulted in a general advanced sleep/wake rhythm during summer and increased alertness levels.

  • 2018. Joar Sundman (et al.). Sleep 41 (1)

    Study Objectives: To investigate whether uvulopalatopharyngoplasty (UPPP) improves sleep quality in patients with Obstructive Sleep Apnea (OSA) using the Functional Outcomes of Sleep Questionnaire (FOSQ) and the Karolinska Sleep Questionnaire (KSQ).

    Methods: Randomized controlled trial used to compare modified UPPP, with controls at baseline and after six months. The controls received delayed surgery and a six-month postoperative follow-up. All operated patients were offered a 24-month follow-up. At each follow-up, patients underwent polysomnography and vigilance testing and completed questionnaires. Nine scales were evaluated: five subscales and the total score in the FOSQ and three subscales in the KSQ.

    Results: Sixty-five patients, mean 42.3 years (SD 11.5), Friedman stage I and II, BMI <36 kg/m 2, moderate to severe OSA, were randomized to intervention (n = 32) or control (n = 33). In the FOSQ and in the KSQ, the mean rate of missing values was 6.2% (range 0-19%) and 20.5% (3-38%), respectively. In 8 of 9 scales, significant differences were observed between the groups in favor of UPPP. There were significant correlations between results from the questionnaires and objective measures from polysomnography and the vigilance test. At the six and 24-month postoperative follow-ups, 8 of 9 scales were significantly improved compared to baseline.

    Conclusions: In selected patients with OSA, subjective sleep quality was significantly improved six months after UPPP compared to controls, with stable improvements 24 months postoperatively. The correlations between subjective and objective outcomes, and the long-term stability suggest a beneficial effect from surgery, although a placebo effect cannot be excluded.

  • Article Ancestral sleep
    2016. Horacio O. de la Iglesia (et al.). Current Biology 26 (7), R271-R272

    While we do not yet understand all the functions of sleep, its critical role for normal physiology and behaviour is evident. Its amount and temporal pattern depend on species and condition. Humans sleep about a third of the day with the longest, consolidated episode during the night. The change in lifestyle from hunter-gatherers via agricultural communities to densely populated industrialized centres has certainly affected sleep, and a major concern in the medical community is the impact of insufficient sleep on health 1 and 2. One of the causal mechanisms leading to insufficient sleep is altered exposure to the natural light–dark cycle. This includes the wide availability of electric light, attenuated exposure to daylight within buildings, and evening use of light-emitting devices, all of which decrease the strength of natural light–dark signals that entrain circadian systems [3].

Show all publications by Arne Lowden at Stockholm University

Last updated: March 15, 2019

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