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  • Psykoendokrinologi av affektive lidelser
  • Stressforskning
  • Dyremodeller for angst, depresjon og psykosomatiske lidelser
  • Stress-søvn interaksjoner

Bidrar til undervisning i biologisk psykologi på alle nivåer. Veiledning av studentprosjekter innen biologisk psykologi.

Vitenskapelig artikkel
  • 2019. A systematic review of studies utilizing hair glucocorticoids as a measure of stress suggests the marker is more appropriate for quantifying short-term stressors. Scientific Reports. 1-14.
  • 2017. Comparison of commercial ELISA assays for quantification of corticosterone in serum. Scientific Reports.
  • 2016. Mild daily stressors in adulthood may counteract behavioural effects after constant presence of mother during early life. Physiology and Behavior. 313-321.
  • 2016. Implication of NOTCH1 Gene in Susceptibility to Anxiety and Depression among Sexual Abuse Victims. Translational psychiatry.
  • 2016. A rodent model of night-shift work induces short-term and enduring sleep and electroencephalographic disturbances. Journal of Biological Rhythms. 48-63.
  • 2015. Maternal deprivation of Lewis rat pups increases the severity of experimental periodontitis in adulthood. Open Dentistry Journal. 65-78.
  • 2015. Cognitive functioning and cortisol profiles in first episode major depression. Scandinavian Journal of Psychology. 379-383.
  • 2014. Hypothermia after chronic mild stress exposure in rats with a history of postnatal maternal separations. Chronobiology International. 252-264.
  • 2014. Effects of social defeat on sleep and behaviour: Importance of the confrontational behaviour. Physiology and Behavior. 54-63.
  • 2013. Restoring psychology's role in peptic ulcer. Applied Psychology: Health and Well-Being. 5-27.
  • 2013. Maternal depression and infant daytime cortisol. Developmental Psychobiology. 334-351.
  • 2013. Early and later life stress alter brain activity and sleep in rats. PLOS ONE.
  • 2013. Cognitive functioning and cortisol suppression in recurrent major depression. PsyCh Journal. 167-174.
  • 2012. Post-transcriptional effects and interactions between chronic mild stress and acute sleep deprivation: Regulation of translation factor and cytoplasmic polyadenylation element-binding protein phosphorylation. Behavioural Brain Research. 251-262.
  • 2012. Neonatal maternal separation in male rats increases intestinal permeability and affects behavior after chronic social stress. Physiology and Behavior. 1058-1066.
  • 2012. Long-term effects of footshock and social defeat on anxiety-like behaviours in rats: Relationships to pre-stressor plasma corticosterone concentration. Stress. 658-670.
  • 2012. Heart rate variability and cortisol responses during attentional and working memory tasks in naval cadets. International Maritime Health. 181-187.
  • 2011. Higher levels of fatigue are associated with higher CRP levels in disease-free breast cancer survivors. Journal of Psychosomatic Research. 136-141.
  • 2010. Emotional stress and orthodontic tooth movement: effects on apical root resorption, tooth movement, and dental tissue expression of interleukin-1 alpha and calcitonin gene-related peptide immunoreactive nerve fibres in rats. European Journal of Orthodontics. 329-335.
  • 2009. Subjective health complaints, stress, and coping in orchestra musicians. Medical Problems of Performing Artists. 58-62.
  • 2009. Levels of circulating interleukin-1 receptor antagonist and C-reactive protein in long-term survivors of testicular cancer with chronic cancer-related fatigue. Brain, behavior, and immunity. 868-874.
  • 2008. Chronic cancer-related fatigue in long-term survivors of testicular cancer. Journal of Psychosomatic Research. 363-371.
  • 2008. A double exposure to social defeat induces sub-chronic effects on sleep and open field dehaviour in rats. Physiology and Behavior. 553-561.
  • 2007. Extracellular levels of serotonin and GABA in the hippocampus after chronic mild stress in rats. - A microdialysis study in an animal model of depression. Behavioural Brain Research. 42-51.
  • 2007. Coffee, stress and cortisol in nursing staff. Psychoneuroendocrinology. 322-330.
  • 2007. Coffee, stress and cortisol in nursing staff. Psychoneuroendocrinology. 322-330.
  • 2006. Sensitization and conditioning as contributors to gastrointestinal vulnerability. A review. Autonomic Neuroscience: Basic & Clinical. 22-27.
  • 2006. Enhanced susceptibility to periodontitis in an animal model of depression: reversed by chronic treatment with the anti-depressant tianeptine. Journal of Clinical Periodontology. 469-477.
  • 2006. Chronic mild stress inhibits BDNF protein expression and CREB activation in the dentate gyrus but not in the hippocampus proper. Pharmacology, Biochemistry and Behavior. 842-849.
  • 2005. Trauma and resulting sensitization effects are modulated by psychological factors. Psychoneuroendocrinology. 965-973.
  • 2005. Effects of chronic mild stress on sexual behavior, locomotor activity and consumption of sucrose and saccharine solutions. Physiology and Behavior. 571-577.
  • 2005. Cognitive activation theory of stress (CATS): from fish brains to the Olympics. Psychoneuroendocrinology. 933-938.
  • 2005. Cognitive activation theory of stress (CATS) : from fish brains to the Olympics. Psychoneuroendocrinology. 933-938.
  • 2005. An acute stressor enhances sensitivity to a chemical irritant and increases 51-CrEDTA permeability of the colon in adult rats. Integrative Physiological & Behavioral Science. 35-44.
  • 2004. The effects of postnatal maternal separation on stress responsivity and experimentally induced colitis in adult rats. Physiology and Behavior. 71-84.
  • 2004. Chronic mild stress affects sucrose intake and sleep in rats. Behavioural Brain Research. 139-147.
  • 2003. Økt kortisolnivå, frostskader og påvirkning av muskler og skjelett under ekstreme polarforhold. Tidsskrift for Den norske legeforening. 3529-3532.
  • 2003. Selective hippocampal lesions do not increase adrenocortical activity. Journal of Neuroscience. 4345-4354.
  • 2003. Selective hippocampal lesions do not increase adrenocortical activity. Journal of Neuroscience. 4345-4354.
  • 2003. Proactive sensitizing effects of acute stress on acoustic startle responses and experimentally induced colitis in rats: relationship to corticosterone. Stress. 49-57.
  • 2003. Intestinal permeability and faecal granulocyte marker protein in dextran sulphate sodium - induced colitis in rats. Scandinavian Journal of Laboratory Animal Science. 169-175.
  • 2003. Association between childhood physical abuse and gastrointestinal disorders and migraine in adulthood. American Journal of Public Health. 1065-1067.
  • 2002. Reduced fear expression after lesions of the ventral hippocampus. Proceedings of the National Academy of Sciences of the United States of America. 10825-10830.
  • 2002. A study of the effects of restraint stress on colitis induced by dextran sulphate sodium in singly housed rats. Integrative Physiological & Behavioral Science. 140-150.
  • 2001. Samhällets förståelse för djurförsök i biomedicinsk forskning. CFN:s skriftserie. 19-26.
  • 2001. Reliability of the Chronic Mild Stress paradigm: Implications for research and animal welfare. Integrative Physiological & Behavioral Science. 266-274.
  • 2001. Is there a role for psychology in ulcer disease? Integrative Physiological & Behavioral Science. 75-83.
  • 2001. Behavioural responses to elevated plus-maze and defensive burying testing, effects on subsequent ethanol intake and effect of ethanol on retention of the burying response. Alcohol and Alcoholism. 48-58.
  • 2000. Relating acoustic startle reactivity and plasticity to alcohol consumption in male Wistar rats. Physiology and Behavior. 723-733.
  • 2000. Anxiety and helplessness in the face of stress predisposes, precipitates and sustains gastric ulceration. Behavioural Brain Research. 159-172.
  • 1999. The time dimension in stress responses: relevance for survival and health. Psychiatry Research. 39-50.
  • 1999. The time dimension in stress responses: Relevance for survival and health. Psychiatry Research. 39-50.
  • 1999. Defensive Burying Test, Alchohol Consumption and Retention of the Defensive Burying Response. Alcohol and Alcoholism. 481.
  • 1998. Defensive burying and stress gastric erosions in alcohol-preferring AA and alcohol non-preferring ANA rats. Alcoholism: Clinical and Experimental Research. 2050-2054.
  • 1998. Comparison of different animal models of stress reveals a non- monotonic effect. Stress. 227-230.
  • 1998. Animal models reveal the "psych" in the psychosomatics of the peptic ulcers. Current Directions in Psychological Science. 180-184.
  • 1997. ScandLAS policy. Scandinavian Journal of Laboratory Animal Science. 2-3.
  • 1997. Prediction of individual vulnerability to stress-induced gastric ulcerations in rats: A factor analysis of selected behavioral and biological indices. Physiology and Behavior. 555-562.
  • 1997. Prediction of Individual Vunerability to Stress-induced Gastric Ulcers in Rats: A Factor Analysis of selected Behavioral and Biological Indices. Physiology and Behavior. 555-562.
  • 1997. Amino acid effects on post-stress ulcers. Relationship to brain serotonin, 5-HIAA and norepinephrine. Stress. 169-178.
  • 1996. Voluntary alcohol consumption in rats: Relationships to defensive burying and stress gastric erosions. Psychology and Behavior. 983-989.
  • 1996. Følelsesmessige belastninger og periodontitt. Den norske tannlegeforenings tidende. 582-587.
  • 1996. Emotional stress effects on immunity, gingivitis and periodontitis. European Journal of Oral Sciences. 327-334.
  • 1995. Dopaminergic system sensitivity, shock-induced stress and stress-induced gastric ulceration may be interdependent. Homeostasis. 6-11.
  • 1994. Effects of traumatic stress on defensive burying: An alternative test of the learned helplessness animal model of depression and enhanced retrieval of unpleasant memories. Biological Psychiatry. 703-704.
  • 1994. Differing mechanisms for proactive effects of intermittent and single shock on gastric ulveration. Physiology and Behavior. 913-919.
  • 1993. Temporal location of contextual exposure determines whether shocks influence later ulcer vulnerability. Learning and Motivation. 282-292.
  • 1993. Some psychosomatic causal factors of restrain-in-water stress ulcers. Physiology and Behavior. 577-581.
  • 1993. Parallelism among stress effects on ulcer, immunosuppression and analgesia: Commonality of mechanisms? Journal of Physiology - Paris. 253-259.
  • 1992. The pathological power of the past. (Abstract of paper presented at 25th International Congress of Psychology, Brussels). International Journal of Psychology. 180-180.
  • 1992. Subtotal lesions of the amygdala: The rostal central nucleus in passive avoidance and ulceration. Physiology and Behavior. 795-803.
  • 1992. Pavlovian conditioning of corticotropin-releasing hormone-induced increase of blood pressure and corticosterone secretion in the rat. Physiologica Scandinavica. 59-63.
  • 1992. Individual behavioral characteristics and extent of stress-induced gastric ulceration in rats. Acta Physiologica Hungarica. 127-134.
  • 1991. The neurobiology of stress ulcers. Brain Research Reviews. 301-343.
  • 1991. Stress ulceration in rats: Impact of prior stress experience. Neuroscience and Biobehavioral Reviews. 319-326.
  • 1991. Stress gastric ulceration in rats: Impact of prior stress experience. Neuroscience and Biobehavioral Reviews. 319-326.
  • 1991. Juvenile and adult footshock stress modulate later adult gastric pathophysiological reactions to restraint stresses in rats. Behavioral Neuroscience. 246-252.
  • 1991. Amino acids and yohimbine prevent poststress gastric ulceration in rats. Experimental & Clinical Gastroenterology. 145-149.
  • 1989. Plasma corticosterone and renin activity during two-way active avoidance learning in spontaneously hypertensive and Wistar-Kyoto rats. Behavioral and Neural Biology. 389-400.
Populærvitenskapelig foredrag
  • 1999. The acoustic startle reflex, pre-pulse inhibition and alcohol consumption in rats.
  • 1999. Long-term effects of two animal stress procedures on corticosterone: Models for PTSD?
  • 1999. Contextual conditioning and fear expression in rats with dorsal and ventral hippocampal lesions.
  • 1999. Anxiety and helplessness in the face of stress predisposes, precipitates and sustains gastric ulceration.
  • 1998. Stress og trivsel hos folk (Workshop).
  • 1998. Stress hos mennesker og dyr.
  • 1998. Liking a drink might be good for you.
  • 1998. Evidence for conditioning effects on gastrointestinal pathology in rats.
  • 1998. Does enrichment alleviate or exaceerbate "stress" in rats and mice?
  • 1997. Stress in laboratory animals.
  • 1997. Modulation of stress responsivity in animals School of Biological Sciences, University of Wales, Swansea, 10.11.97.
  • 1997. Individual differences in vulnerability to stress gastric erosions in rats. Institute of Psychiatry, Univeristy of Dundee, 6th November, 1997.
  • 1997. Hormones and stress. Neuroscience Research Center, Uppsala University, 8th April 1997.
Vitenskapelig foredrag
  • 2016. Simulated night work alters clock gene expression in central and peripheral tissue in rats.
  • 2016. Implication of NOTCH1 Gene in Comorbid Anxiety and Depression Symptoms in a Sample of Sexual Abuse Victims.
  • 2015. Night work - disturbances in sleep and circadian rhythm parameters. An animal model.
  • 2013. Hypothermia after chronic mild stress exposure in rats with ahistory of postnatal maternal separation.
  • 2011. Early and later life stress leads to a lower brain activity during sleep and wakefulness in rats.
  • 2011. Chronic mild stress potentiates a lower brain activity during sleep and wakefulness in rats exposed to long maternal separation.
  • 2010. Gut ache – what does “stress” have to do with it?
  • 2007. Serotonin and GABA in the hippocampus after chronic mild stress in rats. A microdialysis study over the sleep/wake cycle in an animal model of depression.
  • 2006. Post-traumatic stress disorder and gut dysfunction.
  • 2006. Personality factors predict quality of life in distressed patients with inflammatory bowel disease (IBD), The inspire study.
  • 2006. PTSD and fMRI - a pilot study.
  • 2005. Sensitivity to experimentally induced colitis - gender differences?
  • 2004. Trauma and resulting effects are modulated by psychological factors.
  • 2004. Sensitization and conditioning as contributors to gastro-intestinal vulnerability.
  • 2004. Psychological factors impact on colitis in animal models.
  • 2004. Kjønnsforskjeller i sensitivisering til kjemisk indusert inflammasjon.
  • 2004. Eksperimentell stressforskning: psykosomatisk relevans.
  • 2004. Effects of an acute stressor on chemically sensitization and permeability of the colon in adult rats.
  • 2003. The Norwegian perspective.
  • 2003. Stress and ulcer.
  • 2003. Effects of Omega-3 Fatty Acids on DSS-induced Colitis in Rats.
  • 2002. Selective lesions of the ventral hippocampus impair expression of unconditioned fear.
  • 2002. Psychosomatic theory, research and practice in Norway. Lunch roundtable presentation.
  • 2002. Psychobiology of stress and PTSD: potential insights from animal models.
  • 2002. Psychobiology of stress and PTSD: potential insights from animal models.
  • 2002. Proactive sensitising of a brief stressor on acoustic startle response and chemically-induced colitis in rats: relationship to corticosterone.
  • 2002. Longterm effect of short inescapable footshock on startle responses and experimentally induced colitis in rats.
  • 2002. Basal plasma corticosterone levels are not increased by selective lesions or temporary inactivation of the hippocampus.
  • 2002. Assessment of granulocyte marker protein and permeability in relationship to experimentally induced colitis in rats.
  • 2001. The impact of stress on the maintenance of IBD symptoms in male and female rats: Is dextran sulphate sodium (DSS)-induced colitis prolonged in pre-stressed rats?
  • 2001. The impact of stress on the maintenance of IBD symptoms in male and female rats: Is dextran sulphate sodium (DSS)- induced colitis prolonged in pre-stressed rats?
  • 2001. Stress og IBD hos rotter.
  • 2001. Psychobiology of PTSD – Lessons and potentials of basic research.
  • 2001. Om rotter og stress: hva har vi lært fra dyremodeller?
  • 2001. Magetarm lidelser – er stress en medvirkende faktor? Fra basale til kliniske studier.
  • 2001. Dyremodeller.
  • 2001. DSS-modellen for IBD hos dyr – påvirkninger av stress.
  • 2001. A study of the effects of stress on colitis induced by dextran sulphate sodium in rats.
  • 2000. What animal models can tell us about designing psychobiological intervention studies with humans.
  • 2000. Welfare of laboratory rodents.
  • 2000. The re-psychosomatization of peptic ulcer disease.
  • 2000. Stress and GI disorders - Animal models.
  • 2000. Psychobiology of GI disorders: Implications of animal models.
  • 2000. Psychobiology of GI disorders - Animal models.
  • 2000. Animals models in gastrointestinal research.
  • 2000. A study of the effects of stress on colitis induced by dextran sulphate sodium in rats.
  • 1998. Influence of stress on immune cell recruitment in rat gingival tissues.
  • 1998. Influence of stress on immune cell recruitment in rat gingival tissues.
  • 1998. Defensive Burying and Stress Gastric Erosions in AA and ANA Rat Lines.
  • 1998. Alterations in Brain Amine Content by Defensive Burying and Alcohol in Rats.
  • 1997. Apomorphine sensitivity, corticosterone and ethanol consumption in rats.
  • 1996. How individual history shapes disease outcomes - trauma, tumours and ulcers.
  • 1994. Serial stressors and gastric ulceration.
  • 1993. The neurobiology of stress ulcers (abstract).
  • 1993. Mechanisms underlying increases sensitivity to stress ulcer induction in rats (abstract).
  • 1992. The pathological power of the past.
Anmeldelse
  • 2001. Review of Biological Basis of Mind-Body Interactions by E.A. Mayer and C.B. Saper. Psychosomatic Medicine. 512-514.
Fagbok
  • 1993. Endocrine and Nutritional Control of Basic Biological Functions. Hogrefe & Huber, Toronto.
  • 1993. Endocrine and Nutritional Control of Basic Biological Functions. Hogrefe & Huber, Toronto.
  • 1992. Endocrine and Nutritional Control of Basic Biological Functions. Hogrefe & Huber, Toronto.
Brev til redaktøren
  • 2005. Stress, sensitisation and somatisation: A special issue in honour of Holger Ursin. Psychoneuroendocrinology. 931-932.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • 2011. Animal Models for Psychological Disorders. 17 sider.
  • 2007. Ulceration, Gastric. 5 sider.
  • 2007. Gastrointestinal Effects. 6 sider.
  • 2004. Gastric ulcers and stress. 7 sider.
  • 2004. External Events Are Internalized in the Brain-Gut Axis. 8 sider.
  • 2004. Animal models. 2 sider.
  • 2003. Animal models for psychological disorders. 13 sider.
  • 2001. Animal Models. 4 sider.
  • 1995. Cortictropin releasing factor and gastric erosions.
  • 1993. Can tyrosine prevent poststress disturbances? 6 sider.
  • 1992. Can tyrosine prevent poststress disturbances? 6 sider.
Leksikonartikkel
  • 2000. Ulceration. 631-634. I:
    • 2000. Encyclopedia of Stress.
  • 2000. Gastrointestinal effects. 191-196. I:
    • 2000. Encyclopedia of Stress.
Sammendrag/abstract
  • 2016. Simulated night work alters clock gene expression in central and peripheral tissue in rats. Journal of Sleep Research. 57-57.
  • 2016. A rat model for shiftwork: Effects on sleep architecture and sleep homeostasis. Journal of Sleep Research. 248-249.
  • 2013. Longitudinal and Cross-Sectional Studies of LTP-Like Cortical Plasticity in Subjects with Bipolar Disorder and Healthy Controls. Biological Psychiatry. 257S-257S.
  • 2012. Sleep architecture, behaviour, corticosterone and acoustic startle response after double exposure to social defeat in rats. Journal of Sleep Research. 212-212.
  • 2012. Chronic mild stress abolishes a relationship between sleep architecture and translational control. Journal of Sleep Research. 41-41.
  • 2008. Sleep deprivation as an antidepressant treatment following chronic mild stress: effects on translation factor EIF4E and EEF2 activity. Journal of Sleep Research. 221-221.
  • 2008. Associations between cancer related stress and morning cortisol levels in Norwegian long-term survivors of testicular cancer. Psycho-Oncology. S306-S306.
  • 2007. Extracellular levels of serotonin and GABA in the hippocampus after chronic mild stress in rats. A microdialysis study over the sleep/wake cycle in an animal model of depression. Sleep and Biological Rhythms.
  • 2007. Associations between cancer related stress and morning cortisol levels in Norwegian long-term survivors of testicular cancer. Psycho-Oncology. S276-S276.
  • 2005. Chronic mild stress, an animal model of depression, affects the expression of BDNF and 5-HT levels over the sleep/wake cycle in hippocampus in rats. Sleep.
  • 2004. Psychological factors impact on colitis in animal models. Psychosomatic Medicine. A10.
Poster
  • 2010. Chronic social stress increases colonic permeability in rats postnatally exposed to long maternal separation.
  • 2010. Chronic mild stress alters body temperature rhythm and induces depression-like symptoms in rats postnatally exposed to long maternal separation.
  • 2010. Altered Body Temperature Rhythm and Depression-like Symptoms following Early and Later Life Stress in Rats.
  • 2006. Individual differences in the relationship between cortisol and cognitive function: Effects of resting heart rate variability.
  • 2006. Associations between cancer related stress and morning cortisol levels in Norwegian long-term survivors of testicular cancer.
  • 2005. Pre-sensitizing effects on colonic damage - is there a gender difference?
  • 2003. Chronic Mild Stress in Rats Increase REM sleep and Sleep fragmentation and decrease Sucrose Intake.
  • 2002. The impact of housing conditions on rats welfare.
  • 2002. Sleep/wake effect after chronic mild stress in rats.
  • 2002. Sensitising effect of a brief stressor on acoustic startle responses and chemically-induced colitis in rats: Relationships to corticosterone.
  • 2002. Selective lesions of the ventral hippocampus impair expression of unconditioned fear.
  • 2002. Heart rate variability is inversely related to cortisol reactivity during cognitive stress.
  • 2002. Heart rate variability is inversely related to cortisol reactivity during cognitive stress.
  • 2002. Basal plasma corticosterone levels are not increased by selective lesions or temporary inactivation of the hippocampus.
  • 2001. The impact of stress on the maintenance of IBD symptoms in male and female rats: is dextran sulphate sodium (DSS) - induced colitis prolonged in pre-stressed rats?
  • 2001. Sleep/wake effect after chronic mild stress in rats.
  • 2001. Reliability of the Chronic Mild Stress Paradigm: Implications for the Research and Animal Welfare.
  • 2001. Plasma corticosterone level predicts effects of aversive events in rats.
  • 2000. Long-term effects of two animal stress procedures on corticosterone levels in rats.
Oversatt bok
  • 2004. Children’s PTSD Inventory (CPTSDI). Translated and reproduced by permission from The Psychological Corporation, Harcourt Assessment Company. Norwegian translation copyright © 2004 by The Psychological Corporation. Norsk oversettelse tilgjengelig fra forlaget.
  • 2004. Childhood Trauma Questionnaire (CTQ). Translated and reproduced by permission from The Psychological Corporation, Harcourt Assessment Company. Norwegian translation copyright © 2004 by The Psychological Corporation. Norsk oversettelse tilgjengelig fra forlaget.
Vitenskapelig oversiktsartikkel/review
  • 2011. Stress revisited: A critical evaluation of the stress concept. 1291-1301.
Faglig kapittel
  • 2016. The Neurobiology of Stress. 29-49. I:
    • 2016. The Neuroscience of Pain, Stress, and Emotion. Elsevier.

Se fullstendig oversikt over publikasjoner i CRIStin.

Kortisol ved PTSD og depresjon.

Systematisk oversiktsanalyse av kortisol i hår som et langtids mål for stress hos dyr og mennesker