Browsing Bergen Open Research Archive by Author "Posserud, Maj-Britt Rocio"
Now showing items 1-15 of 15
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Adults with attention deficit hyperactivity disorder report high symptom levels of troubled sleep, restless legs, and cataplexy
Bjorvatn, Bjørn; Brevik, Erlend Joramo; Lundervold, Astri; Halmøy, Anne; Posserud, Maj-Britt Rocio; Instanes, Johanne Telnes; Haavik, Jan (Peer reviewed; Journal article, 2017-09-20)Objective: To compare the occurrence of a spectrum of different self-reported sleep problems in adults with ADHD and a control group, and to study the impact of current ADHD medication use and clinical ADHD subtype. Method: ... -
ASSERT - The Autism Symptom SElf-ReporT for adolescents and adults: Bifactor analysis and validation in a large adolescent population
Posserud, Maj-Britt Rocio; Breivik, Kyrre; Gillberg, Christopher; Lundervold, Astri (Peer reviewed; Journal article, 2013-12)With a view to developing a brief screening instrument for autism symptoms in a general population of adolescents, seven items from the Asperger syndrome (and high-functioning autism) diagnostic interview were adapted for ... -
Autism spectrum symptoms in children with neurological disorders
Ryland, Hilde Katrin; Hysing, Mari; Posserud, Maj-Britt Rocio; Gillberg, Christopher; Lundervold, Astri Johansen (Peer reviewed; Journal article, 2012-11-12)Background: The aims of the present study were to assess symptoms associated with an autism spectrum disorder (ASD) in children with neurological disorders as reported by parents and teachers on the Autism Spectrum Screening ... -
Autistic features in school age children: IQ and gender effects in a population-based cohort
Ryland, Hilde Katrin; Hysing, Mari; Posserud, Maj-Britt Rocio; Gillberg, Christopher; Lundervold, Astri (Peer reviewed; Journal article, 2014-03)Level and characteristics of intellectual function (IQ) have been associated with symptom presentation in children with autism spectrum disorder. The present study examined associations between IQ and autistic features in ... -
Brain MR spectroscopy in autism spectrum disorder—the GABA excitatory/inhibitory imbalance theory revisited
Brix, Maiken Kirkegaard; Ersland, Lars; Hugdahl, Kenneth; Grüner, Renate; Posserud, Maj-Britt Rocio; Hammar, Åsa; Craig-Craven, Alexander Richard; Noeske, Ralph; Evans, C. John; Walker, Hanne Bjørg Hansen; Midtvedt, Tore; Beyer, Mona K. (Peer reviewed; Journal article, 2015-06-22)Magnetic resonance spectroscopy (MRS) from voxels placed in the left anterior cingulate cortex (ACC) was measured from 14 boys with Autism Spectrum Disorder (ASD) and 24 gender and age-matched typically developing (TD) ... -
Co-occurring symptoms of attention deficit hyperactivity disorder (ADHD) in a population-based sample of adolescents screened for depression
Lundervold, Astri; Hinshaw, Stephen P.; Sørensen, Lin; Posserud, Maj-Britt Rocio (Peer reviewed; Journal article, 2016-02-25)Background: Depression is common in adolescents, with a gender bias towards girls. Symptoms associated with attention deficit hyperactivity disorder (ADHD) tend to co-occur in depressed adolescents. This may be related to ... -
Genome-wide analyses of aggressiveness in attention-deficit hyperactivity disorder
Brevik, Erlend Joramo; van Donkelaar, Marjolein M J; Weber, Heike; Sanchez-Mora, Cristina; Jacob, Christian; Rivero, Olga; Kittel-Schneider, Sarah; Garcia-Martinez, Iris; Aebi, Marcel; van Hulzen, Kimm; Cormand, Bru; Ramos-Quiroga, Josep A; Lesch, Klaus-Peter; Reif, Andreas; Ribases, Marta; Franke, Barbara; Posserud, Maj-Britt Rocio; Johansson, Stefan; Lundervold, Astri; Haavik, Jan; Zayats, Tetyana (Peer reviewed; Journal article, 2016-03-29)Aggressiveness is a behavioral trait that has the potential to be harmful to individuals and society. With an estimated heritability of about 40%, genetics is important in its development. We performed an exploratory ... -
Mental health services use predicted by number of mental health problems and gender in a total population study
Posserud, Maj-Britt Rocio; Lundervold, Astri (Peer reviewed; Journal article, 2013)We examined the relationship between service use and the number of problem areas as reported by parents and teachers on questionnaires among children aged 7–9 years old in the Bergen Child Study, a total population study ... -
Occupational Status Is Compromised in Adults With ADHD and Psychometrically Defined Executive Function Deficits
Halleland, Helene Barone; Sørensen, Lin; Posserud, Maj-Britt Rocio; Haavik, Jan; Lundervold, Astri Johansen (Journal article, 2014-09)Objective: Problems related to executive function (EF) are frequently reported in adults with ADHD. However, only a subgroup of patients show deficits on common neuropsychological tests designed to measure EF. We investigated ... -
Patterns of psychiatric comorbidity and genetic correlations provide new insights into differences between attention-deficit/hyperactivity disorder and autism spectrum disorder
Solberg, Berit Skretting; Zayats, Tetyana; Posserud, Maj-Britt Rocio; Halmøy, Anne; Engeland, Anders; Haavik, Jan; Klungsøyr, Kari (Peer reviewed; Journal article, 2019-04-28)Background Attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) share common genetic factors but seem to have specific patterns of psychiatric comorbidities. There are few systematic studies ... -
Prevalence and clinical correlates of insomnia in adults with attention-deficit hyperactivity disorder
Brevik, Erlend Joramo; Lundervold, Astri; Halmøy, Anne; Posserud, Maj-Britt Rocio; Instanes, Johanne Telnes; Bjorvatn, Bjørn; Haavik, Jan (Peer reviewed; Journal article, 2017-08)Objective: To investigate the prevalence of insomnia in adults with Attention-deficit hyperactivity disorder (ADHD) and its association with clinical subtypes, current ADHD symptoms, and stimulant treatment. Method: We ... -
Prevalence of auditory hallucinations in Norwegian adolescents: Results from a population-based study
Kompus, Kristiina; Løberg, Else-Marie; Posserud, Maj-Britt Rocio; Lundervold, Astri (Peer reviewed; Journal article, 2015-05-12)Knowing the prevalence and characteristics of auditory verbal hallucinations (AVH) in adolescents is important for estimations of need for mental health care and assessment of psychosis risk. In this report we assess the ... -
Psychosocial characteristics differentiate non-distressing and distressing voices in 10,346 adolescents
Løberg, Else-Marie; Gjestad, Rolf; Posserud, Maj-Britt Rocio; Kompus, Kristiina; Lundervold, Astri (Peer reviewed; Journal article, 2019)Adolescents hearing non-existent voices may be at risk for psychosis, but the prevalence of voice-hearing (VH) in the general population complicates clinical interpretations. Differentiating between VH with and without ... -
Stable associations between behavioral problems and language impairments across childhood – The importance of pragmatic language problems
Helland, Wenche Andersen; Heimann, Mikael; Posserud, Maj-Britt Rocio; Lundervold, Astri Johansen (Peer reviewed; Journal article, 2014-03-15)This study investigated language function associated with behavior problems, focusing on pragmatics. Scores on the Children's Communication Checklist Second Edition (CCC-2) in a group of 40 adolescents (12–15 years) ... -
Teacher reports of hypoactivity symptoms reflect slow cognitive processing speed in primary school children
Lundervold, Astri Johansen; Posserud, Maj-Britt Rocio; Ullebø, Anne-Karin; Sørensen, Lin; Gillberg, Christopher (Peer reviewed; Journal article, 2010-12-29)The mediating effect of cognitive processing speed on the ability of a primary school child to achieve his/her full potential of intellectual functioning emphasizes the importance of methods to detect ‘‘slow’’ children. ...