World's Best Scientists 2026 revealed!

D-Index & Metrics

Neuroscience

D-Index
37
Citations
5804
World Ranking
8783
National Ranking
44

Overview

What is she best known for?

The fields of study she is best known for:

  • Internal medicine
  • Psychiatry
  • Neuroscience

Internal medicine, Endocrinology, Sleep in non-human animals, Neuroscience and Neuroscience of sleep are her primary areas of study. Her work on Hippocampus and Dentate gyrus is typically connected to Chemistry and Sucrose intake as part of general Internal medicine study, connecting several disciplines of science. Her work carried out in the field of Sleep in non-human animals brings together such families of science as Insomnia, Gerontology and Shift work.

Her research in Neuroscience is mostly focused on Slow-wave sleep. As part of one scientific family, Reidun Ursin deals mainly with the area of Neuroscience of sleep, narrowing it down to issues related to the Sleep onset, and often Circadian rhythm. Her work in Body mass index covers topics such as Physiology which are related to areas like Anhedonia.

Her most cited work include:

  • The association between sleep duration, body mass index and metabolic measures in the Hordaland Health Study (255 citations)
  • The association between sleep duration, body mass index and metabolic measures in the Hordaland Health Study (255 citations)
  • Serotonin and the sleep/wake cycle: special emphasis on microdialysis studies (237 citations)

What are the main themes of her work throughout her whole career to date?

Her primary scientific interests are in Slow-wave sleep, Endocrinology, Internal medicine, Sleep in non-human animals and Rapid eye movement sleep. In her study, which falls under the umbrella issue of Slow-wave sleep, Chronic stress is strongly linked to Wakefulness. Her work on Circadian rhythm as part of general Endocrinology study is frequently connected to Chemistry, Serotonergic, 5-HT1A receptor and Alaproclate, therefore bridging the gap between diverse disciplines of science and establishing a new relationship between them.

Her work on Hippocampus and Stimulation as part of general Internal medicine research is frequently linked to 8-OH-DPAT, Reuptake inhibitor and 5-HT receptor, thereby connecting diverse disciplines of science. Her work on Sleep in non-human animals is being expanded to include thematically relevant topics such as Physiology. She interconnects Stressor, Obesity and Locomotor activity in the investigation of issues within Physiology.

She most often published in these fields:

  • Slow-wave sleep (55.00%)
  • Endocrinology (53.75%)
  • Internal medicine (53.75%)

What were the highlights of her more recent work (between 2009-2016)?

  • Insomnia (27.50%)
  • Demography (26.25%)
  • Gerontology (21.25%)

In recent papers she was focusing on the following fields of study:

Her main research concerns Insomnia, Demography, Gerontology, Norwegian and Epidemiology. Her Insomnia research is multidisciplinary, relying on both Middle age and Cohort study. Her Middle age study integrates concerns from other disciplines, such as Sleep duration, Psychiatry, Risk factor and Biostatistics.

Much of her study explores Gerontology relationship to Body mass index. There are a combination of areas like Lithuanian and Register integrated together with her Norwegian study. Her Epidemiology research includes elements of Blood lipids, Logistic regression, Waist and Mood.

Between 2009 and 2016, her most popular works were:

  • Midlife insomnia and subsequent mortality: the Hordaland health study. (41 citations)
  • Midlife insomnia and subsequent mortality: the Hordaland health study. (41 citations)
  • Early and Later Life Stress Alter Brain Activity and Sleep in Rats (35 citations)

Best Publications

  • Serotonin and the sleep/wake cycle: special emphasis on microdialysis studies

    Chiara M Portas;Bjørn Bjorvatn;Reidun Ursin

  • Serotonin and sleep.

    Reidun Ursin

  • The association between sleep duration, body mass index and metabolic measures in the Hordaland Health Study

    Bjørn Bjorvatn;Ina Marie Sagen;Nicolas Øyane;Siri Waage

  • Effects of chronic mild stress on sexual behavior, locomotor activity and consumption of sucrose and saccharine solutions.

    Janne Grønli;Robert Murison;Eldbjørg Fiske;Bjørn Bjorvatn;Bjørn Bjorvatn

  • Chronic mild stress inhibits BDNF protein expression and CREB activation in the dentate gyrus but not in the hippocampus proper

    Janne Grønli;Clive Bramham;Robert Murison;Tambudzai Kanhema

  • Sleep stages and EEG power spectrum in relation to acoustical stimulus arousal threshold in the rat.

    Dag Neckelmann;Reidun Ursin

  • On-line detection of extracellular levels of serotonin in dorsal raphe nucleus and frontal cortex over the sleep/wake cycle in the freely moving rat.

    C.M Portas;B Bjorvatn;S Fagerland;J Grønli

  • Chronic mild stress affects sucrose intake and sleep in rats.

    Janne Grønli;Robert Murison;Bjørn Bjorvatn;Eli Sørensen

  • Sleep duration, subjective sleep need, and sleep habits of 40- to 45-year-olds in the Hordaland Health Study.

    Reidun Ursin;Bjørn Bjorvatn;Fred Holsten

  • Extracellular levels of serotonin and GABA in the hippocampus after chronic mild stress in rats. A microdialysis study in an animal model of depression.

    Janne Grønli;Eldbjørg Fiske;Robert Murison;Bjørn Bjorvatn;Bjørn Bjorvatn

  • Self-stimulation of hippocampus in rats.

    Reidun Ursin;Holger Ursin;James Olds

  • Sleep stage relations within the sleep cycles of the cat

    Reidun Ursin

  • Platform sleep deprivation affects deep slow wave sleep in addition to REM sleep

    Svein Grahnstedt;Reidun Ursin

  • Sleep/waking effects of a selective 5-HT1A receptor agonist given systemically as well as perfused in the dorsal raphe nucleus in rats

    Bjørn Bjorvatn;Snorre Fagerland;Tore Eid;Reidun Ursin

  • The effect of sleep deprivation and recovery sleep on plasma corticosterone in the rat

    I. Tobler;R. Murison;R. Ursin;H. Ursin

  • Effects of sleep deprivation on extracellular serotonin in hippocampus and frontal cortex of the rat.

    B Bjorvatn;J Grønli;F Hamre;E Sørensen

  • The reliability and functional validity of visual and semiautomatic sleep/wake scoring in the Møll-Wistar rat.

    Dag Neckelmann;Øystein Erlend Olsen;Snorre Fagerland;Reidun Ursin

  • The effects of 5-hydroxytryptophan andl-tryptophan on wakefulness and sleep patterns in the cat

    Reidun Ursin

  • Midlife insomnia and subsequent mortality: the Hordaland health study.

    Børge Sivertsen;Ståle Pallesen;Ståle Pallesen;Nick Glozier;Bjørn Bjorvatn;Bjørn Bjorvatn

  • EEG Power Densities (0.5–20 Hz) in Different Sleep–Wake Stages in Rats

    Bjørn Bjorvatn;Snorre Fagerland;Reidun Ursin

Frequent Co-Authors

Ståle Pallesen
Ståle Pallesen University of Bergen
Robert Murison
Robert Murison University of Bergen
Børge Sivertsen
Børge Sivertsen Norwegian Institute of Public Health
Holger Ursin
Holger Ursin University of Bergen
Astri J. Lundervold
Astri J. Lundervold University of Bergen
Clive R. Bramham
Clive R. Bramham University of Bergen
Irene Tobler
Irene Tobler University of Zurich
Alexander A. Borbély
Alexander A. Borbély University of Zurich

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