Research groups
Research
http://www.uib.no/rg/ccns
Publications
Academic article
- Gunn Karin Brechan-Skjetne; Ragnhild Bjørknes; Maj-Britt Rocio Posserud et al. (2026). Frontiers | The burden of care, parenting stress, and navigating welfare services: parents’ everyday experiences of young children with autism spectrum disorder. (external link)
- Marianna Ruiz Loria; Maayan Salomon-Gimmon; Karsten Specht et al. (2025). Bridging neuroscience and practice: A semi-structured music therapy approach with autistic children. (external link)
- Astri Lundervold; Stephen P. Hinshaw; Lin Sørensen et al. (2016). Co-occurring symptoms of attention deficit hyperactivity disorder (ADHD) in a population-based sample of adolescents screened for depression. (external link)
- Berit Skretting Solberg; Maj-Britt Rocio Posserud; André Høberg et al. (2025). Sex differences in self-reported attention-deficit/hyperactivity disorder symptoms in clinical and population-based cohorts. (external link)
- Børge Sivertsen; Maj-Britt Roccio Posserud; Christopher Gillberg et al. (2012). Sleep problems in children with autism spectrum problems: a longitudinal population-based study. (external link)
- Erlend Joramo Brevik; Astri Lundervold; Anne Halmøy et al. (2017). Prevalence and clinical correlates of insomnia in adults with attention-deficit hyperactivity disorder. (external link)
- Maj-Britt Rocio Posserud; Berit Skretting Solberg; Anders Engeland et al. (2021). Male to female ratios in autism spectrum disorders by age, intellectual disability and attention-deficit/hyperactivity disorder. (external link)
- Stein Andersson; Maj-Britt Rocio Posserud; Astri Lundervold (2013). Early and late auditory event-related potentials in cognitively high functioning male adolescents with autism spectrum disorder. (external link)
- Hilde Katrin Ryland; Mari Hysing; Maj-Britt Rocio Posserud et al. (2014). Autistic features in school age children: IQ and gender effects in a population-based cohort. (external link)
- Maiken Kirkegaard Brix; Lars Ersland; Kenneth Hugdahl et al. (2015). Brain MR spectroscopy in autism spectrum disorder—the GABA excitatory/inhibitory imbalance theory revisited. (external link)
- Astri Lundervold; Kyrre Breivik; Maj-Britt Rocio Posserud et al. (2013). Symptoms of depression as reported by Norwegian adolescents on the Short Mood and Feelings Questionnaire. (external link)
- Shaikh I. Ahmad; Jocelyn I. Meza; Maj-Britt Rocio Posserud et al. (2021). Attention-deficit/hyperactivity disorder symptom dimensions differentially predict adolescent peer problems: Findings from two longitudinal studies. (external link)
- Maj-Britt Rocio Posserud; Mari Hysing; Wenche A Helland et al. (2016). Autism traits: The importance of “co-morbid” problems for impairment and contact with services. Data from the Bergen Child Study. (external link)
- Ola Skjeldal; Maj-Britt Rocio Posserud (2024). Autisme eller Sukharevas syndrom?. (external link)
- Maj-Britt Posserud; Astri Lundervold; Christopher Gillberg (2009). Validation of the Autism Spectrum Screening Questionnaire in a Total Population Sample. (external link)
- Kristiina Kompus; Else-Marie Løberg; Maj-Britt Rocio Posserud et al. (2015). Prevalence of auditory hallucinations in Norwegian adolescents: Results from a population-based study. (external link)
- Bjørn Bjorvatn; Erlend Joramo Brevik; Astri Lundervold et al. (2017). Adults with attention deficit hyperactivity disorder report high symptom levels of troubled sleep, restless legs, and cataplexy. (external link)
- Wenche A Helland; Astri Lundervold; Mikael Heimann et al. (2014). Stable associations between behavioral problems and language impairments across childhood - The importance of pragmatic language problems. (external link)
- Gro Janne Henningsen Wergeland; Maj-Britt Rocio Posserud; Krister Westlye Fjermestad et al. (2022). Early Behavioral Interventions for Children and Adolescents With Autism Spectrum Disorder in Routine Clinical Care: A Systematic Review and Meta-Analysis. (external link)
- Einar Heiervang; Kjell Morten Stormark; Astri Johansen Lundervold et al. (2007). Psychiatric disorders in Norwegian 8-to 10-year-olds: An epidemiological survey of prevalence, risk factors, and service use. (external link)
- Hilde Katrin Ryland; Mari Hysing; Maj-Britt Rocio Posserud et al. (2012). Autism Spectrum Symptoms in Children with Neurological Disorders. (external link)
- Marianna Ruiz Loria; Alexander Groessing; Alexandrina Guran et al. (2023). Music for autism: a protocol for an international randomized crossover trial on music therapy for children with autism. (external link)
- Mari Hysing; Astri Lundervold; Maj-Britt Rocio Posserud et al. (2016). Association between sleep problems and symptoms of attention deficit hyperactivity disorder in adolescence: results from a large population-based study. (external link)
- Johanne Telnes Instanes; Berit Skretting Solberg; Liv Grimstvedt Kvalvik et al. (2024). Organic food consumption during pregnancy and symptoms of neurodevelopmental disorders at 8 years of age in the offspring: the Norwegian Mother, Father and Child Cohort Study (MoBa). (external link)
- Berit Skretting Solberg; Tetyana Zayats; Maj-Britt Rocio Posserud et al. (2019). Patterns of psychiatric comorbidity and genetic correlations provide new insights into differences between attention-deficit/hyperactivity disorder and autism spectrum disorder. (external link)
- Astri Lundervold; Marte Stickert; Mari Hysing et al. (2016). Attention deficits in children with combined autism and ADHD: A CPT study. (external link)
- Erlend Joramo Brevik; Astri J. Lundervold; Jan Haavik et al. (2020). Validity and accuracy of the Adult Attention-Deficit/Hyperactivity Disorder (ADHD) Self-Report Scale (ASRS) and the Wender Utah Rating Scale (WURS) symptom checklists in discriminating between adults with and without ADHD. (external link)
- Maj-Britt Rocio Posserud; Anne Karin Ullebø; Kerstin J. Plessen et al. (2014). Influence of assessment instrument on ADHD diagnosis. (external link)
- Ingvar Bjelland; Maj-Britt Rocio Posserud; Gro Janne Henningsen Wergeland (2022). Dialogue based early detection—Development of a novel approach for detection of mental health problems among children in daycare centers. (external link)
- Astri Johansen Lundervold; Maj-Britt Posserud; Lin Sørensen et al. (2008). Intellectual function in children with teacher-reported language problems. (external link)
- Dag Øystein Nordanger; Mari Hysing; Maj-Britt Rocio Posserud et al. (2013). Posttraumatic responses to the July 22, 2011 Oslo terror among Norwegian High School students. (external link)
- Carmen M. Schroder; Tobias Banaschewski; Joaquin Fuentes et al. (2021). Pediatric prolonged-release melatonin for insomnia in children and adolescents with autism spectrum disorders. (external link)
- Lucja Bieleninik; Maj-Britt Rocio Posserud; Monika Geretsegger et al. (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. (external link)
- Astri J. Lundervold; Lin Sørensen; Maj-Britt Rocio Posserud et al. (2023). Low Persistence of Inattention Symptoms From Childhood to Adolescence: A Population-Based Study. (external link)
- Wenche A Helland; Maj-Britt Rocio Posserud; Astri Lundervold (2020). Emotional and behavioural function in children with language problems- a longitudinal, population- based study. (external link)
- Helene Halleland; Lin Sørensen; Maj-Britt Rocio Posserud et al. (2015). Occupational status is compromised in adults with ADHD and psychometrically defined executive function deficits. (external link)
- Wenche Andersen Helland; Maj-Britt Rocio Posserud; Turid Helland et al. (2016). Language Impairments in children With ADHD and in Children With Reading Disorder. (external link)
- Tobias J Banaschewski; Oliviero Bruni; Joaquin Fuentes et al. (2022). Practice Tools for Screening and Monitoring Insomnia in Children and Adolescents with Autism Spectrum Disorder. (external link)
- Erlend Joramo Brevik; Marjolein M J van Donkelaar; Heike Weber et al. (2016). Genome-wide analyses of aggressiveness in attention-deficit hyperactivity disorder. (external link)
- Amalie Austgulen; Maj-Britt Rocio Posserud; Mari Hysing et al. (2024). Deliberate self-harm in adolescents screening positive for attention-deficit / hyperactivity disorder: a population-based study. (external link)
- Maj-Britt Posserud; Astri Lundervold; Stein Atle Lie et al. (2010). The prevalence of autism spectrum disorders: impact of diagnostic instrument and non-response bias. (external link)
- Maj-Britt Rocio Posserud; Astri Lundervold (2013). Mental health services use predicted by number of Mental health problems and gender in a total population study. (external link)
- Else-Marie Løberg; Rolf Gjestad; Maj-Britt Rocio Posserud et al. (2019). Psychosocial characteristics differentiate non-distressing and distressing voices in 10,346 adolescents. (external link)
- Maj-Britt Rocio Posserud; Kyrre Breivik; Christopher Gillberg et al. (2013). ASSERT - The Autism Symptom SElf-ReporT for adolescents and adults: Bifactor analysis and validation in a large adolescent population. (external link)
- Maj-Britt Posserud; Astri Johansen Lundervold; Maaike Christine Steijnen et al. (2008). Factor analysis of the Autism Spectrum Screening Questionnaire. (external link)
- Anne Karin Ullebø; Kyrre Breivik; Christopher. Gillberg et al. (2012). The factor structure of ADHD in a general population of primary school children. (external link)
- Anne Karin Ullebø; Maj-Britt Roccio Posserud; Einar Heiervang et al. (2011). Screening for the attention deficit hyperactivity disorder phenotype using the strength and difficulties questionnaire. (external link)
- Anne Karin Ullebø; Maj-Britt Roccio Posserud; Einar Heiervang et al. (2012). Prevalence of the ADHD phenotype in 7- to 9-year-old children: effects of informant, gender and non-participation. (external link)
- Astri Lundervold; Maj-Britt Roccio Posserud; Anne Karin Ullebø et al. (2011). Teacher reports of hypoactivity symptoms reflect slow cognitive processing speed in primary school children. (external link)
- Maj-Britt Posserud; Astri Johansen Lundervold; Christopher Gillberg (2006). Autistic features in a total population of 7-9-year-old children assessed by the ASSQ (Autism Spectrum Screening Questionnaire). (external link)
Conference lecture
- Gunn Karin Brechan-Skjetne; Ragnhild Bjørknes; Maj-Britt Rocio Posserud et al. (2026). Å være foreldre til førskolebarn med autismespekterdiagnoser. En kvalitativ studie om foreldreskap, foreldrestress og hverdagsliv.. (external link)
- Maj-Britt Posserud; Astri Johansen Lundervold; Christopher Gillberg (2003). Frequency and impact of autistic symptoms. (external link)
- Wenche Andersen Helland; Turid Helland; Maj-Britt Rocio Posserud et al. (2012). Language profiles and mental health problems in children with specific language impairment and children with ADHD. (external link)
- Wenche A Helland; Astri Lundervold; Maj-Britt Rocio Posserud et al. (2013). Language disorders inn children with ADHD and children with reading disorder. (external link)
- Wenche Andersen Helland; Maj-Britt Rocio Posserud; A.J. Lundervold (2022). Helland, WA: Emotional and behavioural function in children with language problems-a longitudinal, population-based study. Psykisk helse hos barn med språkforstyrrelser. (external link)
- Dag Øystein Nordanger; Mari Hysing; Maj-Britt Rocio Posserud et al. (2013). Posttraumatic responses to the 22nd of July 2011 Oslo Terror among Norwegian high school students. (external link)
- Maj-Britt Posserud (2005). Intervju av barn - erfaringer fra Barn i Bergen studien. (external link)
- Maj-Britt Posserud; Astri Johansen Lundervold; Christopher Gillberg (2005). Autism Spectrum Disorder in the Bergen Child Study A study in three phases. (external link)
- Maj-Britt Posserud; Astri Johansen Lundervold; Christopher Gillberg (2004). Biological Markers In Autism. (external link)
- Maj-Britt Rocio Posserud (2011). Girls and Women with ESSENCE. (external link)
- Maj-Britt Posserud; Astri Johansen Lundervold; Christopher Gillberg (2004). Autistic features in a total population of 7-9 year old children assessed by the ASSQ (Autism Spectrum Screening Questionnaire). (external link)
- Maj-Britt Posserud (2008). Defining autism spectrum disorders: issues of core symptomatology and comorbidity. (external link)
- Maj-Britt Posserud (2008). The prevalence of autism spectrum disorders.Impact of diagnostic instrument and non-response bias. (external link)
- Berit Skretting Solberg; Tetyana Zayats; Maj-Britt Rocio Posserud et al. (2018). Psychiatric comorbidities in adults with ADHD and/or autism: Can patterns of comorbidities together with genetics add knowledge on etiologic relations?. (external link)
- Berit Skretting Solberg; Tetyana Zayats; Maj-Britt Rocio Posserud et al. (2018). Psychiatric comorbidity and genetic correlations provide new insights into differences between ADHD and autism. (external link)
- Berit Skretting Solberg; Tetyana Zayats; Maj-Britt Rocio Posserud et al. (2018). Psychiatric comorbidity and genetic correlations provide new insights into differences between ADHD and autism. (external link)
- Maj-Britt Rocio Posserud (2011). Black or White? Or Grey? The categorical diagnosis versus the dimensional symptom. (external link)
- Erlend Joramo Brevik; Astri Lundervold; Anne Halmøy et al. (2016). Insomnia in adults with ADHD: impact of clinical subtype and pharmacological treatment. (external link)
- Erlend Joramo Brevik; Astri Lundervold; Jan Haavik et al. (2016). The factor structure and screening properties of the Wender Utah Rating Scale (WURS) and the Adult ADHD Self-Report Scale (ASRS). (external link)
- Maj-Britt Rocio Posserud (2011). Autism and ADHD - is there an overlap?. (external link)
- Einar Heiervang; Kjell Morten Stormark; Astri Johansen Lundervold et al. (2003). A longitudinal study of child mental health in Norway. (external link)
- Maj-Britt Rocio Posserud (2011). Essence au feminin. (external link)
- Maj-Britt Posserud (2003). Major Social Impairment among Children in Bergen. (external link)
- Maj-Britt Posserud (2003). Assq i Barn i Bergen. (external link)
- Maj-Britt Posserud; Lin Sørensen (2003). Hvor er jentene? Tidlig identifikasjon av psykiske vansker hos barn. (external link)
- Maj-Britt Posserud; Maaike Steijnen; Sophie Verhoeven et al. (2004). Factor analysis of ASSQ and correlation with SDQ social subscales. (external link)
Conference poster
- Gunn Karin Brechan-Skjetne; Maj-Britt Rocio Posserud; Rannei Sæther et al. (2026). Magic Moments of Joy and Emotional Connection Balancing Parenting Stress Parents’ Everyday Experiences with Preschool Children with Autism.. (external link)
- Gunn Karin Brechan-Skjetne; Ragnhild Bjørknes; Maj-Britt Rocio Posserud et al. (2025). Parents everyday experiences of young children with Autism Spectrum Disorders Parents everyday experiences of young children with Autism Spectrum Disorders. (external link)
- Hilde Katrin Ryland; Mari Hysing; Maj-Britt Rocio Posserud et al. (2011). Autism spectrum symptoms in children with neurological disorders: the usefulness of the Autism Spectrum Screening Questionnaire (ASSQ). (external link)
- Maj-Britt Rocio Posserud; Johanne Telnes Instanes; Sissel Alsaker et al. (2023). Enabling parents of children with autism spectrum disorders – a randomized controlled trial of parenting programs. (external link)
- Maj-Britt Posserud; Astri Johansen Lundervold; Maaike Steijnen et al. (2005). Factoranalysis of ASSQ - the high functioning Autism Spectrum Screening Questionnaire. (external link)
- Astri Johansen Lundervold; Lin Sørensen; Maj-Britt Posserud (2006). Intellectual, behavioural and emotional function among children with teacher reports of language impairment. (external link)
- Wenche A Helland; Maj-Britt Rocio Posserud; Turid Helland et al. (2013). Language impairment in children with ADHD and in chuildren with RD. (external link)
- Astri Lundervold; Anne Karin Ullebø; Maj-Britt Posserud et al. (2007). Sluggish cognitive tempo in children with externalizing and internalizing disorders. (external link)
- Astri Lundervold; Marthe Strickert; Mari Hysing et al. (2011). CONNERSʼ CPT-II PERFORMANCE IN CHILDREN WITH COMORBID AUTISM SPECTRUM AND ATTENTION DEFICIT HYPERACTIVITY DISORDER. (external link)
- Stein Andersson; Maj-Britt Rocio Posserud; Astri Lundervold (2011). N170 LATERALIZATION IN HIGH FUNCTIONING MALE ADOLESCENT AUTISM SPECTRUM DISORDER. (external link)
- Erlend Joramo Brevik; Astri Lundervold; Jan Haavik et al. (2016). The factor structure and screening properties of the Wender Utah Rating Scale (WURS) and the Adult ADHD Self-Report Scale (ASRS). (external link)
- Maj-Britt Posserud (2003). Assq in the Bergen Child Study. (external link)
- Erlend Joramo Brevik; Astri Lundervold; Anne Halmøy et al. (2016). Insomni hos voksne pasienter med ADHD – betydningen av symptomdomener og farmakologisk behandling. (external link)
- Erlend Joramo Brevik; Astri Lundervold; Anne Halmøy et al. (2016). Insomnia in adult ADHD patients. Role of clinical subtypes and stimulant treatment. (external link)
- Wenche Andersen Helland; Maj-Britt Rocio Posserud; Turid Helland et al. (2012). Language impairments in children with ADHD and in children with reading disoders. (external link)
- Gunn Karin Brechan-Skjetne; Rannei Sæther; Ragnhild Bjørknes et al. (2023). Parental stress in parents of children with autism spectrum disorders (ASD). Preliminary baselinedata from the Norwegian ENACT study: Enabling parents of children with ASD - a randomized controlled trial of parenting programs.. (external link)
- Maj-Britt Posserud; Maaike Steijnen; Sophie Verhoeven et al. (2004). Factoranalysis of ASSQ - the high functioning Autism Spectrum Screening Questionnaire. (external link)
- Agnete Dyresen; Krister Westlye Fjermestad; Arne Kodal et al. (2025). The Role of Externalizing Symptoms on Long-term Treatment Outcomes in Youth with Anxiety Disorders. (external link)
Media feature article
Letter to the editor
Academic literature review
Doctoral thesis (PhD)
- Maj-Britt Posserud (2008). Epidemiology of Autism Spectrum Disorders. (external link)
- Erlend Joramo Brevik; A Lundevold; Jan Haavik et al. (2018). Adult Attention Deficit Hyperactivity Disorder. Beyond the Core Symptoms of the Diagnostic and Statistical Manual of Mental Disorders. (external link)
- Maj-Britt Posserud; Christopher Gillberg; Astri Lundervold (2008). Epidemiology of Autism Spectrum Disorders. (external link)
Editorial/Leader article
Popular science article
- Karin Mössler; Maj-Britt Rocio Posserud; Hanne Cecilie Braarud (2013). Tullespråk er godt for babyer. (external link)
- Erlend J. Brevik; Astri J. Lundervold; Jan Haavik et al. (2020). Validitet og diagnostisk treffsikkerhet ved bruk av screeningverktøy for ADHD hos voksne. (external link)
- Maj-Britt Rocio Posserud (2011). Fordeler og ulemper ved å få en diagnose. (external link)
- Maj-Britt Rocio Posserud (2011). Diagnostikk og utbredelse av autismetilstander. (external link)
- Maj-Britt Rocio Posserud (2011). Hva er autisme?. (external link)
Radio or TV participation
Lecture
- Maj-Britt Posserud (2004). Psykiske vansker hos barn. (external link)
- Lucja Bieleninik; Monika Geretsegger; Maj-Britt Rocio Posserud et al. (2016). Tracing the temporal stability of autism spectrum diagnosis and severity using ADOS: a systematic review and meta-analysis. (external link)
- Berit Skretting Solberg; Maj-Britt Rocio Posserud (2017). Fra uforskammet og vanartet til bokstavbarn - ADHD og autisme i dagens skole. (external link)
- Astri Johansen Lundervold; Lin Sørensen; Maj-Britt Posserud (2005). Konsentrasjonsvansker hos barn. (external link)
Projects