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Maj-Britt Posserud is professor in Child and Adolscent Psychiatry at the University of Bergen, and training for a clinical specialty in Child and Adolescent Psychiatry at the Haukeland University Hospital in Bergen, Norway. She took her PhD in 2008 on the <Epidemiology of Autism Spectrum Disorders> at the University of Bergen with Professor Christopher Gillberg and Professor Astri Lundervold as supervisors. Her research focuses mainly on epidemiology of autism spectrum disorders and ADHD with a special focus on phenomenology, comorbid problems, gender differences and the overlap between problematic symptoms of neuropsychiatric problems versus normality. She is currently involved in projects on autistic symptoms from childhood to adolescence in the Bergen Child Study, music therapy in autism spectrum disorders, the overlap between ADHD and emotional regulation difficulties in adults, social difficulties in children with ADHD, and imaging of children with autism spectrum disorders.

Photo: University of Bergen



Posserud, M., Hysing, M., Helland, W., Gillberg, C., & Lundervold, A.J. (2018). Autism traits: The importance of "co-morbid" problems for impairment and contact with services. Data from the Bergen Child Study. Research in Developmental Disabilities, 72, 275-283.


Bieleninik, Ł., Posserud, M.B., Geretsegger, M., Thompson, G., Elefant, C., & Gold, C. (2017). Tracing the temporal stability of autism spectrum diagnosis and severity as measured by the Autism Diagnostic Observation Schedule: A systematic review and meta-analysis. PLoS One, 12, e0183160

Bjorvatn, B., Brevik, E.J., Lundervold, A.J., Halmøy, A., Posserud, M.B., Instanes, J.T., & Haavik, J. (2017). Adults with Attention Deficit Hyperactivity Disorder Report High Symptom Levels of Troubled Sleep, Restless Legs, and Cataplexy. Frontiers in Psychology, 8, 1621.

Brevik, E.J., Lundervold, A.J., Halmøy, A., Posserud, M.B., Instanes, J.T., Bjorvatn, B., & Haavik, J. (2017). Prevalence and clinical correlates of insomnia in adults with attention-deficit hyperactivity disorder. Acta Psychiatrica Scandinavica, 136, 220-227.


Brevik, E.J., van Donkelaar, M.M., Weber, H., Sánchez-Mora, C., Jacob, C., Rivero, O., ... Zayats, T.  (2016). Genome-wide analyses of aggressiveness in attention-deficit hyperactivity disorder. American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics, 171, 733-747.

Helland, W.A., Posserud, M.B., Helland, T., Heimann, M., & Lundervold, A.J. (2016). Language Impairments in Children With ADHD and in Children With Reading Disorder. Journal of Attention Disorders, 20, 581-589.

Hysing, M., Lundervold, A.J., Posserud, M.B., & Sivertsen, B. (2016). Association Between Sleep Problems and Symptoms of Attention Deficit Hyperactivity Disorder in Adolescence: Results From a Large Population-Based Study. Behavioral Sleep Medicine, 14, 550-564.

Lundervold, A.J., Hinshaw, S.P., Sørensen, L., & Posserud, M.B. (2016). Co-occurring symptoms of attention deficit hyperactivity disorder (ADHD) in a population-based sample of adolescents screened for depression. BMC Psychiatry, 16, 46.

Lundervold, A.J., Stickert, M., Hysing, M., Sørensen, L., Gillberg, C., & Posserud, M.B. (2016). Attention Deficits in Children With Combined Autism and ADHD: A CPT Study. Journal of Attention Disorders, 20, 599-609.


Brix, M.K., Ersland, L., Hugdahl, K., Grüner, R., Posserud, M.B., Hammar, Å., ...  Beyer, M.K. (2015). "Brain MR spectroscopy in autism spectrum disorder-the GABA excitatory/inhibitory imbalance theory revisited". Frontiers in Human Neuroscience, 9, 365.

Halleland, H.B., Sørensen, L., Posserud, M., Haavik, J., & Lundervold, A.J. (2015). Occupational Status Is Compromised in Adults With ADHD and Psychometrically Defined Executive Function Deficits. Journal of Attention Disorders, (Epub ahead of print).

Kompus, K., Løberg, E.M., Posserud, M.B., & Lundervold, A.J. (2015). Prevalence of auditory hallucinations in Norwegian adolescents: Results from a population‐based study. Scandinavian journal of psychology. 56, 391-396.


Helland, W.A, Lundervold, A.J., Heimann, M., & Posserud, M.B. (2014). Stable associations between behavioral problems and language impairments across childhood - The importance of pragmatic language problems. Research in Developmental Disabilities, 35, 943-951.

Posserud, M.B., Ullebø A.K., Plessen, K.J., Stormark, K.M., Gillberg, C., & Lundervold, A.J. (2014). Influence of assessment instrument on ADHD diagnosis. European Child & Adolescent Psychiatry, 23, 197-205.

Ryland, H.K., Hysing, M., Posserud, M. B., Gillberg, C., & Lundervold, A. J. (2014). Autistic features in school age children: IQ and gender effects in a population-based cohort. Research in Autism Spectrum Disorders, 8, 266-274.


Andersson, S., Posserud, M.B., Lundervold, A.J. (2013). Early and late auditory event-related potentials in cognitively high functioning male adolescents with autism spectrum disorder. Research in Autism Spectrum Disorders, 7, 815-823.

Lundervold, A.J., Breivik, K., Posserud, M.B., Stormark, K.M., & Hysing, M. (2013). Symptoms of depression as reported by Norwegian adolescents on the Short Mood and Feelings Questionnaire. Frontiers in Psychology, 4, 613.

Nordanger, D.Ø., Hysing, M., Posserud, M.B., Lundervold, A.J., Jakobsen, R., Olff, M., & Stormark KM. (2013). Posttraumatic Responses to the July 22, 2011 Oslo Terror Among Norwegian High School Students. Journal of Traumatic Stress, 34, 26, 679-685.

Posserud, M.B., & Lundervold, A.J. (2013). Mental health services use predicted by number of mental health problems and gender in a total population study. Scientific World Journal, 2013, 247283.

Posserud, M.B., Breivik, K., Gillberg, C., & Lundervold, A.J. (2013). ASSERT - The Autism Symptom SElf-ReporT for adolescents and adults: Bifactor analysis and validation in a large adolescent population. Research in Developmental Disabilities, 34, 4495-4503.


Posserud, M., & Gillberg, C. (2012). Autisme Spektrum Tilstander. In T. Fladby, S., Andersson & L.Gjerstad (Eds.), Nevropsykiatri: metoder og kliniske perspektiver. Oslo: Gyldendal.

Ryland, H.K., Hysing, M., Posserud, M.B., Gillberg, C., & Lundervold, A.J. (2012). Autism spectrum symptoms in children with neurological disorders. Child and Adolescent Psychiatry and Mental Health, 6, 34.

Sivertsen, B., Posserud, M.B., Gillberg, C., Lundervold, A.J., & Hysing, M. (2012). Sleep problems in children with autism spectrum problems: a longitudinal population-based study. Autism, 16, 139-150.

Ullebø, A.K., Breivik, K., Gillberg, C., Lundervold, A.J., & Posserud, M.B. (2012). The factor structure of ADHD in a general population of primary school children. Journal of Child Psychology and Psychiatry, 53, 927-936.

Ullebø, A.K., Posserud, M.B., Heiervang, E., Obel, C., & Gillberg, C. (2012). Prevalence of the ADHD phenotype in 7- to 9-year-old children: effects of informant, gender and non-participation. Social Psychiatry and Psychiatric Epidemiology, 47, 763-769.


Lundervold, A.J., Posserud, M.B., Ullebø, A.K., Sørensen, L., & Gillberg, C. (2011). Teacher reports of hypoactivity symptoms reflect slow cognitive processing speed in primary school children. European Child & Adolescent Psychiatry, 20, 121-126.

Ullebø, A.K., Posserud, M.B., Heiervang, E., Gillberg, C., & Obel, C. (2011). Screening for the attention deficit hyperactivity disorder phenotype using the strength and difficulties questionnaire. European Child & Adolescent Psychiatry, 20, 451-458.


Posserud, M., Lundervold, A.J., Lie, S.A., & Gillberg, C. (2010). The prevalence of autism spectrum disorders: impact of diagnostic instrument and non-response bias. Social Psychiatry and Psychiatric Epidemiology, 45, 319-327.


Posserud, M.B., Lundervold, A.J., & Gillberg, C. (2009). Validation of the autism spectrum screening questionnaire in a total population sample. Journal of Autism and Developmental Disorders, 39, 126-134.


Lundervold, A.J., Posserud, M., Sørensen, L., & Gillberg, C. (2008). Intellectual function in children with teacher reported language problems. Scandinavian Journal of Psychology, 49, 187-193.

Posserud, B., Lundervold, A.J., Steijnen, M.C., Verhoeven, S., Stormark, K.M., & Gillberg, C. (2008). Factor analysis of the Autism Spectrum Screening Questionnaire. Autism, 12, 99-112.


Heiervang, E., Stormark, K.M., Lundervold, A.J., Heimann, M., Goodman, R., Posserud, M.B., …. Gillberg, C. (2007). Psychiatric disorders in Norwegian 8- to 10-year-olds: an epidemiological survey of prevalence, risk factors, and service use. Journal of the American Academy of Child and Adolescent Psychiatry, 46, 438-447.


Posserud, M.B., Lundervold, A.J., & Gillberg, C. (2006). Autistic features in a total population of 7-9-year-old children assessed by the ASSQ (Autism Spectrum Screening Questionnaire). Journal of Child Psychology and Psychiatry, 47,167-175.


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Maj-Britt Posserud

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Utskriftsdatum: 2020-07-02