Helga Ask
forsker, PhD in psychology
Kontakt
Avdeling
Fagområder
Jeg er medleder for PsychGen - Senter for Genetisk Epidemiologi og Psykisk Helse, og seniorforsker, også tilknyttet avdeling for Barns helse og utvikling ved Folkehelseinstituttet. Jeg er interessert i å skaffe ny kunnskap om hvordan genetiske og miljømessige faktorer samspiller for å påvirke utviklingen av vanlige psykiske helseproblemer hos barn og ungdom. For øyeblikket leder jeg nordiske prosjekter som undersøker risiko og motstandskraft i befolkningen under Covid-19-pandemien. Jeg har også en stilling ved PROMENTA forskningssenter, hvor jeg underviser i personlighet. Som medlem av MoBa fagråd, er jeg interessert i fremtiden til MoBa, utvikling av spørreskjemaer og deltakerengasjement. Jeg er også en av lederne for PsychGen arbeidsgruppe for åpen og reproduserbar vitenskap.
Prosjekter og publikasjoner
- Betydning av tidlige erfaringer i barnehage og skole for senere utvikling og utdanning (MoBaEarlyEd)
- Foreldreskap, barnløshet og psykisk helse i tider med fallende fruktbarhet
- Forståelse av de genetiske faktorene som spiller en rolle for nevropsykologisk utvikling
- Genetisk sårbarehet for angstlidelser
- Infeksjon, immunitet og ADHD
- Koronapandemiens påvirkning på befolkningens psykiske helse: en multinasjonal forløpsstudie.
- Post-pandemic mental health: Risk and resilience in young people (covidmentYOUNG)
- Prenatale risikofaktorer for ADHD
- PsychGen -"Genetisk epidemiologistudier med fokus på nevroutvikling og psykisk helse".
- Reproduksjon av sosioøkonomiske forskjeller og mental helse gjennom generasjoner (REMENTA)
- Tvilling-familiestudie av psykiske lidelser i MoBa
- Jo Adrian Dahl Askelund, Laura Elizabeth Hegemann, Andrea G. Allegrini, Elizabeth Claire Corfield, Helga Ask, Neil Martin Davies, Ole Andreassen, Alexandra Havdahl, Laurie J. Hannigan, (2025). The Genetic Architecture of Differentiating Behavioral and Emotional Problems in Early Life. Biological Psychiatry doi: 10.1016/j.biopsych.2024.12.021
- Laura Hegemann, Espen Moen Eilertsen, Johanne Hagen Pettersen, Elizabeth Claire Corfield, Rosa Catherine Gillespie Cheesman, Leonard Frach, Ludvig Daae Bjørndal, Helga Ask, Beate St Pourcain, Alexandra Havdahl, Laurie John Hannigan, (2025). Direct and indirect genetic effects on early neurodevelopmental traits. Journal of Child Psychology and Psychiatry doi: 10.1111/jcpp.14122
- Kevin S. O’Connell, Maria Koromina, Tracy van der Veen, Toni Boltz, Friederike S. David, Jessica M.K. Yang, Keng-Han Lin, Xin Wang, Jonathan R. I. Coleman, Brittany L. Mitchell, Caroline C. McGrouther, Aaditya V. Rangan, Penelope A. Lind, Elise Koch, Arvid Harder, Nadine Parker, Jaroslav Bendl, Kristina Adorjan, Esben Agerbo, Diego Albani, Silvia Alemany, Ney Alliey-Rodriguez, Thomas D. Als, Till F. M. Andlauer, Anastasia Antoniou, Helga Ask, Nicholas Bass, Elizabeth Claire Corfield, Alexandra Havdahl, Martin Steen Tesli, (2025). Genomics yields biological and phenotypic insights into bipolar disorder. Nature doi: 10.1038/s41586-024-08468-9
- Mark J. Adams, Fabian Streit, Xiangrui Meng, Swapnil Awasthi, Brett N. Adey, Karmel W. Choi, V. Kartik Chundru, Jonathan R.I. Coleman, Bart Ferwerda, Jerome C. Foo, Zachary F. Gerring, Olga Giannakopoulou, Priya Gupta, Alisha S.M. Hall, Arvid Harder, David M. Howard, Helga Ask, Elizabeth Claire Corfield, Alexandra Havdahl, Ted Reichborn-Kjennerud, Ottar Bjerkeset, Ole Kristian Drange, Sigrid Børte, John Anker Henrik Zwart, Bendik Kristoffer Slagsvold Winsvold, Kristian Hveem, Srdjan Djurovic, Olav Bjerkehagen Smeland, Ole Andreassen, Martin Steen Tesli, Christopher Hübel, Andrew M. McIntosh, Cathryn M. Lewis, Stephan Ripke, Naomi R. Wray, Karoline Kuchenbaecker, Aeilko H. Zwinderman, Alex S. F. Kwong, Daniel F. Levey, Brittany L. Mitchell, Guiyan Ni, Vanessa K. Ota, Oliver Pain, Gita A. Pathak, Eva C. Schulte, Xueyi Shen, Jackson G. Thorp, Alicia Walker, Shuyang Yao, Jian Zeng, (2025). Trans-ancestry genome-wide study of depression identifies 697 associations implicating cell types and pharmacotherapies. Cell doi: 10.1016/j.cell.2024.12.002
- Ingunn Olea Lund, Pia Myklebust Johannessen, Christian Madsen, Lars Johan Hauge, Alexandra Havdahl, Anne Reneflot, Ragnhild Eek Brandlistuen, Helga Ask, (2025). Patterns of psychiatric healthcare use during pandemic times among boys and girls with pre-existing diagnoses: a Norwegian nationwide primary and specialist healthcare registry study. BMC Psychiatry doi: 10.1186/s12888-024-06422-7
- Ingunn Olea Lund, Laurie Hannigan, Helga Ask, Jo Adrian Dahl Askelund, Laura Elizabeth Hegemann, Elizabeth Claire Corfield, Robyn Wootton, Yasmin I. Ahmadzadeh, George Davey smith, Tom A. McAdams, Eivind Ystrøm, Alexandra Havdahl, (2025). Prenatal maternal stress: triangulating evidence for intrauterine exposure effects on birth and early childhood outcomes across multiple approaches. BMC Medicine doi: 10.1186/s12916-024-03834-w
- Ran Goldblatt, Nathalie Holz, Garrett W. Tate, Kari Sherman, Selamawit Ghebremicael, Soumitra S. Bhuyan, Yazan A. Al-Ajlouni, Sara Santillanes, Ghermay Araya, Shermaine Abad, Megan M. Herting, Wesley Kurt Thompson, Bishal Thapaliya, Ram Sapkota, Jiayuan Xu, Jingyu Liu, Gunter Schumann, Henrik Walter, Andreas Heinz, Markus Ralser, Sven Twardziok, Elli Polemiti, Tristram Lett, Nilakshi Vaidya, Emin Serin, Maja Neidhart, Marcel Jentsch, Esther Hitchen, Roland Eils, Ulrike-Helene Taron, Tatjana Schütz, Kerstin Schepanski, Tobias Banaschewski, Andreas Meyer-Lindenberg, Heike Tost, Nathalie Holz, Emanuel Schwarz, Argyris Stringaris, Nina Christmann, Karina Jansone, Frauke Nees, Sebastian Siehl, Ole A. Andreassen, Lars Tjelta Westlye, Dennis van der Meer, Helga Ask, Sara Fernandez-Cabello, Rikka Kjelkenes, Michael Rapp, Mira Tschorn, Sarah Jane Böttger, Andre Marquant, Antoine Bernas, Gaia Novarino, Lena Marr, Mel Slater, Guillem Feixas Viapiana, Francisco José Eiroa-Orosa, Jaime Gallego, Alvaro Pastor, Markus M. Nöthen, Andreas J. Forstner, Isabelle Claus, Per Hoffmann, Abigail Miller, Stefanie Heilmann-Heimbach, Peter Sommer, Mona Boye, Johannes Wilbertz, Karen Schmitt, Viktor Jirsa, Spase Petkoski, Séverine Pitel, Lisa Otten, Anastasios-Polykarpos Athanasiadis, Charlie Pearmund, Bernhard Spanlang, Elena Alvarez, Mavi Sanchez, Arantxa Giner, Sören Hese, Paul Renner, Tianye Jia, Yanting Gong, Yuxiang Dai, Yunman Xia, Xiao Chang, Vince Calhoun, Paul Thompson, Nicholas Clinton, Sylvane Desrivières, Allan Young, Bernd Stahl, George Ogoh, Vince D. Calhoun, (2024). Linking neuroimaging and mental health data from the ABCD Study to UrbanSat measurements of macro environmental factors. Nature Mental Health s. 1285-1297. doi: 10.1038/s44220-024-00318-x
- Shannon D’Urso, Robyn Wootton, Helga Ask, Caroline Brito Nunes, Ole A. Andreassen, Liang-Dar Hwang, Gunn-Helen Øiseth Moen, David M. Evans, Alexandra Havdahl, (2024). Mendelian randomization analysis of maternal coffee consumption during pregnancy on offspring neurodevelopmental difficulties in the Norwegian Mother, Father and Child Cohort Study (MoBa). Psychological Medicine s. 3548-3561. doi: 10.1017/S0033291724002216
- Johanne Hagen Pettersen, Laura Hegemann, Kristin Gustavson, Ingunn Olea Lund, Pia Jensen, Cynthia M. Bulik, Ole A. Andreassen, Alexandra Havdahl, Ragnhild Eek Brandlistuen, Laurie John Hannigan, Helga Ask, (2024). Eating Problems Among Adolescent Boys and Girls Before and During the Covid-19 Pandemic. International Journal of Eating Disorders s. 193-205. doi: 10.1002/eat.24314
- Mary M. Barker, Kadri Kõiv, Ingibjörg Magnúsdóttir, Hannah Milbourn, Bin Wang, Xinkai Du, Gillian Murphy, Eva Herweijer, Elísabet U. Gísladóttir, Huiqi Li, Anikó Lovik, Anna K. Kähler, Archie Campbell, Maria Feychting, Arna Hauksdóttir, Emily E. Joyce, Edda Björk Thordardóttir, Emma M. Frans, Asle Hoffart, Reedik Mägi, Gunnar Tómasson, Kristjana Ásbjörnsdóttir, Jóhanna Jakobsdóttir, Ole A. Andreassen, Patrick F. Sullivan, Sverre Urnes Johnson, Thor Aspelund, Ragnhild Eek Brandlistuen, Helga Ask, Daniel L. McCartney, Omid V. Ebrahimi, Kelli Lehto, Unnur A. Valdimarsdottir, Fredrik Nyberg, Fang Fang, (2024). Mental illness and COVID-19 vaccination: a multinational investigation of observational & register-based data. Nature Communications doi: 10.1038/s41467-024-52342-1
- Robyn E Wootton, Kyle Dack, Hannah J Jones, Lucy Riglin, Paul Madley-Dowd, Carolina Borges, Panagiota Pagoni, Christine Roth, Anne Lise Brantsæter, Elizabeth Claire Corfield, Camilla Stoltenberg, Anne-Siri Øyen, George Davey Smith, Helga Ask, Anita Thapar, Evie Stergiakouli, Alexandra Havdahl, (2024). Testing maternal effects of vitamin-D and omega-3 levels on offspring neurodevelopmental traits in the Norwegian Mother, Father and Child Cohort Study. Psychological Medicine s. 3323-3333. doi: 10.1017/S0033291724001466
- Yue Wang, Fenfen Ge, Thor Aspelund, Helga Ask, Arna Hauksdóttir, Kejia Hu, Jóhanna Jakobsdóttir, Helga Zoega, Qing Shen, Heather C. Whalley, Ole Birger Vesterager Pedersen, Kelli Lehto, Ole A. Andreassen, Fang Fang, Huan Song, Unnur A. Valdimarsdóttir, (2024). History of childhood maltreatment associated with hospitalization or death due to COVID-19: a cohort study. BMC Medicine s. 1-13. doi: 10.1186/s12916-024-03399-8
- Amanda M. Hughes, Fartein Ask Torvik, Elsje van Bergen, Laurie John Hannigan, Elizabeth Claire Corfield, Ole A. Andreassen, Eivind Ystrøm, Helga Ask, George Davey Smith, Neil Martin Davies, Alexandra Havdahl, (2024). Parental education and children’s depression, anxiety, and ADHD traits, a within-family study in MoBa. npj Science of learning doi: 10.1038/s41539-024-00260-8
- Johanne Hagen Pettersen, Laurie John Hannigan, Kristin Gustavson, Ingunn Olea Lund, Rebecca M. Pearson, Pia Jensen, Ragnar Nesvåg, Ragnhild Eek Brandlistuen, Helga Ask, (2024). COVID-19 Pandemic Quarantines and Mental Health among Adolescents in Norway. JAMA Network Open doi: 10.1001/jamanetworkopen.2024.22189
- Laura Hegemann, Elizabeth Claire Corfield, Adrian Dahl Askelund, Andrea G. Allegrini, Ragna Bugge Askeland, Angelica Ronald, Helga Ask, Beate St Pourcain, Ole A. Andreassen, Laurie John Hannigan, Alexandra Havdahl, (2024). Genetic and phenotypic heterogeneity in early neurodevelopmental traits in the Norwegian Mother, Father and Child Cohort Study. Molecular Autism doi: 10.1186/s13229-024-00599-0
- Adrian Dahl Askelund, Robyn E. Wootton, Fartein A. Torvik, Rebecca B. Lawn, Helga Ask, Elizabeth C. Corfield, Maria C. Magnus, Ted Reichborn-Kjennerud, Per M. Magnus, Ole A. Andreassen, Camilla Stoltenberg, George Davey Smith, Neil Martin Davies, Alexandra Havdahl, Laurie John Hannigan, (2024). Assessing causal links between age at menarche and adolescent mental health: a Mendelian randomisation study. BMC Medicine doi: 10.1186/s12916-024-03361-8
- Ludvig Daae Bjørndal, Espen Moen Eilertsen, Ziada Ayorech, Rosa Cheesman, Yasmin I. Ahmadzadeh, Jessie R. Baldwin, Helga Ask, Laurie John Hannigan, Tom A. McAdams, Alexandra Havdahl, Ragnhild Bang Nes, Espen Røysamb, Eivind Ystrøm, (2024). Disentangling direct and indirect genetic effects from partners and offspring on maternal depression using trio-GCTA. Nature Mental Health s. 417-425. doi: 10.1038/s44220-024-00207-3
- Leonard Frach, Wikus Barkhuizen, Andrea G. Allegrini, Helga Ask, Laurie J. Hannigan, Elizabeth Claire Corfield, Ole A. Andreassen, Frank Dudbridge, Eivind Ystrøm, Alexandra Havdahl, Jean-Baptiste Pingault, (2024). Examining intergenerational risk factors for conduct problems using polygenic scores in the Norwegian Mother, Father and Child Cohort Study. Molecular Psychiatry s. 951-961. doi: 10.1038/s41380-023-02383-7
- Natalia Tesli, Piotr Pawel Jaholkowski, Piotr Pawel Jaholkowski, Unn Kristin Hansen Haukvik, Andreas Jangmo, Marit Haram, Jaroslav Rokicki, Christine Friestad, Jorim J. Tielbeek, Øyvind Erik Næss, Torbjørn Skardhamar, Kristin Gustavson, Helga Ask, Seena Fazel, Martin Tesli, Ole Andreassen, (2023). Conduct disorder - a comprehensive exploration of comorbidity patterns, genetic and environmental risk factors. Psychiatry Research s. 1-10. doi: 10.1016/j.psychres.2023.115628
- Li Lu, Laurie John Hannigan, Ragnhild Eek Brandlistuen, Ragnar Nesvåg, Lill Trogstad, Per Minor Magnus, Anna Bára Unnarsdóttir, Unnur A. Valdimarsdóttir, Ole Andreassen, Helga Ask, (2023). Mental Distress Among Norwegian Adults During the COVID-19 Pandemic: Predictors in Initial Response and Subsequent Trajectories. International Journal of Public Health doi: 10.3389/ijph.2023.1606164
- Qing Shen, Emily E. Joyce, Omid Vakili Ebrahimi, Maria Didriksen, Anikó Lovik, Karen Sól Sævarsdóttir, Ingibjörg Magnúsdóttir, Dorte Helenius Mikkelsen, Anna Bára Unnarsdóttir, Arna Hauksdóttir, Asle Hoffart, Anna K. Kähler, Edda Björk Thordardóttir, Elias Eythórsson, Emma M. Frans, Gunnar Tómasson, Helga Ask, Hrönn Hardardóttir, Jóhanna Jakobsdóttir, Kelli Lehto, Li Lu, Ole Andreassen, Patrick F. Sullivan, Runólfur Pálsson, Christian Erikstrup, Sisse Rye Ostrowski, Thomas Werge, Thor Aspelund, Ole B.V. Pedersen, Sverre Urnes Johnson, Fang Fang, Unnur Anna Valdimarsdóttir, (2023). COVID-19 illness severity and 2-year prevalence of physical symptoms: an observational study in Iceland, Sweden, Norway and Denmark. The Lancet Regional Health - Europe doi: 10.1016/j.lanepe.2023.100756
- Laurence J Howe, Humaira Rasheed, Paul Remy Jones, Dorret I Boomsma, David M Evans, Alexandros Giannelis, Caroline Hayward, John L Hopper, Amanda Hughes, Hannu Lahtinen, Shuai Li, Penelope A Lind, Nicholas G Martin, Pekka Martikainen, Sarah E Medland, Tim T Morris, Michel G Nivard, Jean-Baptiste Pingault, Karri Silventoinen, Jennifer A Smith, Emily A Willoughby, James F Wilson, Rafael Ahlskog, Ole Andreassen, Helga Ask, Archie Campbell, Rosa Catherine Gillespie Cheesman, Yoonsu Cho, Kaare Christensen, Elizabeth Claire Corfield, Christina C. Dahm, Alexandra Havdahl, William D Hill, Shona M Kerr, Marianne Rodriguez Nygaard, Teemu Palviainen, Nancy L Pedersen, Robert Plomin, Melissa C Southey, Camilla Stoltenberg, Bjørn Olav Åsvold, Øyvind Erik Næss, George Davey Smith, Jaakko Kaprio, Ben Michael Brumpton, Neil Martin Davies, (2023). Educational attainment, health outcomes and mortality: a within-sibship Mendelian randomization study. International Journal of Epidemiology s. 1579-1591. doi: 10.1093/ije/dyad079
- Shannon D'Urso, Gunn-Helen Øiseth Moen, Liang-Dar Hwang, Laurie John Hannigan, Elizabeth Claire Corfield, Helga Ask, Stefan Johansson, Pål Rasmus Njølstad, Robin N. Beaumont, Rachel M. Freathy, David M. Evens, Alexandra Havdahl, (2023). Intrauterine Growth and Offspring Neurodevelopmental Traits A Mendelian Randomization Analysis of the Norwegian Mother, Father and Child Cohort Study (MoBa). JAMA psychiatry s. 144-156. doi: 10.1001/jamapsychiatry.2023.3872
- Laurie Hannigan, Ingunn Olea Lund, Jo Adrian Dahl Askelund, Eivind Ystrøm, Elizabeth Claire Corfield, Helga Ask, Alexandra Havdahl, (2023). Genotype-environment interplay in associations between maternal drinking and offspring emotional and behavioral problems. Psychological Medicine s. 203-214. doi: 10.1017/S0033291723003057
- Pia Jensen, Bo Lars Engdahl, Kristin Gustavson, Ingunn Olea Lund, Johanne Hagen Pettersen, Christian Madsen, Lars Johan Hauge, Ann Kristin Skrindo Knudsen, Anne Reneflot, Ragnhild Eek Brandlistuen, Helga Ask, Ragnar Nesvåg, (2023). Incidence rates of treated mental disorders before and during the COVID-19 pandemic—a nationwide study comparing trends in the period 2015 to 2021. BMC Psychiatry doi: 10.1186/s12888-023-05157-1
- Pia Jensen, Christian Madsen, Lars Johan Hauge, Kristin Gustavson, Ingunn Olea Lund, Johanne Hagen Pettersen, Ann Kristin Skrindo Knudsen, Anne Reneflot, Ragnhild Eek Brandlistuen, Unnur Anna Valdimarsdóttir, Helga Ask, Ragnar Nesvåg, (2023). Contact with primary care physicians among adults with pre-existing common mental health problems during the COVID-19 pandemic: a registry-based study from Norway. BMC Health Services Research doi: 10.1186/s12913-023-10108-3
- Adrian Dahl Askelund, Helga Ask, Eivind Ystrøm, Alexandra Havdahl, Laurie John Hannigan, (2023). Exploring the differentiation of behavioural and emotional problems across childhood: A prospective longitudinal cohort study. JCPP Advances s. 1-11. doi: 10.1002/jcv2.12176
- Anikó Lovik, Juan González-Hijón, Asle Hoffart, Chloe Fawns-Ritchie, Ingibjörg Magnúsdóttir, Li Lu, Anna Bára Unnarsdóttir, Anna K. Kähler, Archie Campbell, Arna Hauksdóttir, Charilaos Chourpiliadis, Daniel L. McCartney, Edda Björk Thordardóttir, Emily E. Joyce, Emma M. Frans, Jóhanna Jakobsdóttir, Lill Trogstad, Ole Andreassen, Per Minor Magnus, Sverre Urnes Johnson, Patrick F. Sullivan, Thor Aspelund, David J. Porteous, Helga Ask, Omid Vakili Ebrahimi, Unnur Anna Valdimarsdóttir, Fang Fang, (2023). Elevated symptoms of depression and anxiety among family members and friends of critically ill COVID-19 patients – an observational study of five cohorts across four countries. The Lancet Regional Health - Europe doi: 10.1016/j.lanepe.2023.100733
- Ingunn Olea Lund, Njål Andersen, Helga Ask, Jasmina Burdzovic Andreas, (2023). Parental drinking, mental health and educational level, and offspring’s subsequent prescription drugs treatment for sleep problems. A longitudinal HUNT survey and registry study. BMC Public Health doi: 10.1186/s12889-023-16301-7
- Ragna Bugge Askeland, Laurie John Hannigan, Kevin Sean O'Connell, Elizabeth Claire Corfield, Oleksandr Frei, Anita Thapar, George Davey Smith, Ted Reichborn-Kjennerud, Ole Andreassen, Helga Ask, Alexandra Havdahl, (2023). Developmental manifestations of polygenic risk for bipolar disorder from infancy to middle childhood. Translational Psychiatry doi: 10.1038/s41398-023-02522-2
- Jiayuan Xu, Nana Liu, Elli Polemiti, Liliana Garcia-Mondragon, Jie Tang, Xiaoxuan Liu, Tristram Lett, Le Yu, Markus M. Nöthen, Jianfeng Feng, Chunshui Yu, Andre Marquand, Gunter Schumann, Henrik Walter, Andreas Heinz, Markus Ralser, Sven Twardziok, Nilakshi Vaidya, Emin Serin, Marcel Jentsch, Esther Hitchen, Roland Eils, Ulrike-Helene Taron, Tatjana Schütz, Kerstin Schepanski, Jamie Banks, Tobias Banaschewski, Karina Jansone, Nina Christmann, Andreas Meyer-Lindenberg, Heike Tost, Nathalie Holz, Emanuel Schwarz, Argyris Stringaris, Maja Neidhart, Frauke Nees, Sebastian Siehl, Ole Andreassen, Lars Tjelta Westlye, Dennis van der Meer, Sara Fernandez-Cabello, Rikka Kjelkenes, Helga Ask, Michael Rapp, Mira Tschorn, Sarah Jane Böttger, Gaia Novarino, Lena Marr, Mel Slater, Guillem Feixas Viapiana, Francisco Eiroa Orosa, Jaime Gallego, Alvaro Pastor, Andreas Forstner, Per Hoffmann, Markus M. Nöthen, Andreas J. Forstner, Isabelle Claus, Abbi Miller, Stefanie Heilmann-Heimbach, Peter Sommer, Mona Boye, Johannes Wilbertz, Karen Schmitt, Viktor Jirsa, Spase Petkoski, Séverine Pitel, Lisa Otten, Anastasios-Polykarpos Athanasiadis, Charlie Pearmund, Bernhard Spanlang, Elena Alvarez, Mavi Sanchez, Arantxa Giner, Sören Hese, Paul Renner, Tianye Jia, Yanting Gong, Yunman Xia, Xiao Chang, Vince Calhoun, Jingyu Liu, Paul Thompson, Nicholas Clinton, Sylvane Desrivieres, Allan H. Young, Bernd Stahl, George Ogoh, (2023). Effects of urban living environments on mental health in adults. Nature Medicine s. 1456-1467. doi: 10.1038/s41591-023-02365-w
- Amanda M. Hughes, Eleanor Sanderson, Tim Morris, Ziada Ayorech, Martin Steen Tesli, Helga Ask, Ted Reichborn-Kjennerud, Ole Andreassen, Per Minor Magnus, Øyvind Helgeland, Stefan Johansson, Pål Rasmus Njølstad, George Davey Smith, Alexandra Karoline Saasen Havdahl, Laura D. Howe, Neil Martin Davies, (2022). Body mass index and childhood symptoms of depression, anxiety, and attention-deficit hyperactivity disorder: A within-family Mendelian randomization study. eLIFE doi: 10.7554/eLife.74320
- Nora Refsum Bakken, Laurie John Hannigan, Alexey Shadrin, Guy Frederick Lanyon Hindley, Helga Ask, Ted Reichborn-Kjennerud, Martin Steen Tesli, Ole Andreassen, Alexandra Karoline Saasen Havdahl, (2022). Childhood temperamental, emotional, and behavioral characteristics associated with mood and anxiety disorders in adolescence: A prospective study. Acta Psychiatrica Scandinavica s. 217-228. doi: 10.1111/acps.13522
- Jean-Baptiste Pingault, Wikus Barkhuizen, Biyao Wang, Laurie John Hannigan, Espen Moen Eilertsen, Elizabeth Claire Corfield, Ole Andreassen, Helga Ask, Martin Steen Tesli, Ragna Bugge Askeland, George Davey Smith, Camilla Stoltenberg, Neil Martin Davies, Ted Reichborn-Kjennerud, Eivind Ystrøm, Alexandra Havdahl, (2022). Genetic nurture versus genetic transmission of risk for ADHD traits in the Norwegian Mother, Father and Child Cohort Study. Molecular Psychiatry doi: 10.1038/s41380-022-01863-6
- Laurence J. Howe, Michel G. Nivard, Tim T. Morris, Ailin Falkmo Hansen, Humaira Rasheed, Yoonsu Cho, Geetha Chittoor, Rafael Ahlskog, Penelope A. Lind, Teemu Palviainen, Matthijs D. van der Zee, Rosa Catherine Gillespie Cheesman, Massimo Mangino, Yunzhang Wang, Shuai Li, Lucija Klaric, Scott M. Ratliff, Lawrence F. Bielak, Marianne Nygaard, Alexandros Giannelis, Emily A. Willoughby, Chandra A. Reynolds, Jared V. Balbona, Ole Andreassen, Helga Ask, Aris Baras, Christopher R. Bauer, Dorret I. Boomsma, Archie Campbell, Harry Campbell, Zhengming Chen, Paraskevi Christofidou, Elizabeth Claire Corfield, Christina C. Dahm, Deepika R. Dokuru, Luke M. Evans, Eco J. C. de Geus, Sudheer Giddaluru, Scott D. Gordon, K. Paige Harden, W. David Hill, Amanda Hughes, Shona M. Kerr, Yongkang Kim, Hyeokmoon Kweon, Antti Latvala, Deborah A. Lawlor, Liming Li, Kuang Lin, Per Minor Magnus, Patrik K. E. Magnusson, Travis T. Mallard, Pekka Martikainen, Melinda C. Mills, Pål Rasmus Njølstad, John D. Overton, Nancy L. Pedersen, David J. Porteous, Jeffrey Reid, Karri Silventoinen, Melissa C. Southey, Camilla Stoltenberg, Elliot M. Tucker-Drob, Margaret J. Wright, Hyeokmoon Kweon, Philipp D. Koellinger, Daniel J. Benjamin, Patrick Turley, Laurence J. Howe, Michel G. Nivard, Tim T. Morris, Robert Plomin, Alexandra Havdahl, Meike Bartels, Nicholas G. Martin, Sven Oskarsson, Anne E. Justice, Iona Y. Millwood, Kristian Hveem, Cristen J. Willer, Bjørn Olav Åsvold, Jaakko Kaprio, Sarah E. Medland, Robin G. Walters, David M. Evans, George Davey Smith, Caroline Hayward, Gibran Hemani, Neil Martin Davies, John K. Hewitt, Matthew C. Keller, Michael C. Stallings, James J. Lee, Kaare Christensen, Sharon L. R. Kardia, Patricia A. Peyser, Jennifer A. Smith, James F. Wilson, John L. Hopper, Sara Hägg, (2022). Within-sibship genome-wide association analyses decrease bias in estimates of direct genetic effects. Nature Genetics s. 581-592. doi: 10.1038/s41588-022-01062-7
- Alexandra Havdahl, Robyn E Wootton, Beate Leppert, Lucy Riglin, Helga Ask, Martin Steen Tesli, Ragna Bugge Askeland, Laurie John Hannigan, Elizabeth Claire Corfield, Anne-Siri Øyen, Ole Andreassen, Kate Tilling, George Davey Smith, Anita Thapar, Ted Reichborn-Kjennerud, Evie Stergiakouli, (2022). Associations between Pregnancy-Related Predisposing Factors for Offspring Neurodevelopmental Conditions and Parental Genetic Liability to Attention-Deficit/Hyperactivity Disorder, Autism, and Schizophrenia: The Norwegian Mother, Father and Child Cohort Study (MoBa). JAMA psychiatry s. 799-810. doi: 10.1001/jamapsychiatry.2022.1728
- Eshim S. Jami, Anke R. Hammerschlag, Hill F. Ip, Andrea G. Allegrini, Beben Benyamin, Richard Border, Elizabeth W. Diemer, Chang Jiang, Ville Karhunen, Yi Lu, Qing Lu, Travis T. Mallard, Pashupati P. Mishra, Ilja M. Nolte, Teemu Palviainen, Roseann E. Peterson, Hannah M. Sallis, Andrey A. Shabalin, Ashley E. Tate, Elisabeth Thiering, Natàlia Vilor-Tejedor, Carol Wang, Ang Zhou, Daniel E. Adkins, Silvia Alemany, Helga Ask, Qi Chen, Robin P. Corley, Erik A. Ehli, Luke M. Evans, Alexandra Havdahl, Fiona A. Hagenbeek, Christian Hakulinen, Anjali K. Henders, Jouke Jan Hottenga, Tellervo Korhonen, Abdullah Mamun, Shelby Marrington, Alexander Neumann, Kaili Rimfeld, Fernando Rivadeneira, Judy L. Silberg, Catharina E. van Beijsterveldt, Eero Vuoksimaa, Alyce M. Whipp, Xiaoran Tong, Ole Andreassen, Dorret I. Boomsma, Sandra A. Brown, S. Alexandra Burt, William Copeland, Danielle M. Dick, K. Paige Harden, Kathleen Mullan Harris, Catharina A. Hartman, Joachim Heinrich, John K. Hewitt, Christian Hopfer, Elina Hypponen, Marjo-Riitta Jarvelin, Jaakko Kaprio, Liisa Keltikangas-Järvinen, Kelly L. Klump, Kenneth Krauter, Ralf Kuja-Halkola, Henrik Larsson, Terho Lehtimäki, Paul Lichtenstein, Sebastian Lundström, Hermine H. Maes, Per Minor Magnus, Marcus R. Munafò, Jake M. Najman, Pål Rasmus Njølstad, Albertine J. Oldehinkel, Craig E. Pennell, Robert Plomin, Ted Reichborn-Kjennerud, Chandra Reynolds, Richard J. Rose, Andrew Smolen, Harold Snieder, Michael Stallings, Marie Standl, Jordi Sunyer, Henning Tiemeier, Sally J. Wadsworth, Tamara L. Wall, Andrew J.O. Whitehouse, Gail M. Williams, Eivind Ystrøm, Michel G. Nivard, Meike Bartels, Christel M. Middeldorp, (2022). Genome-wide association meta-analysis of childhood and adolescent internalizing symptoms. Journal of the American Academy of Child and Adolescent Psychiatry s. 934-945. doi: 10.1016/j.jaac.2021.11.035
- Kjersti Mæhlum Walle, Ragna Bugge Askeland, Kristin Gustavson, Siri Mjaaland, Eivind Ystrøm, W. Ian Lipkin, Per Minor Magnus, Camilla Stoltenberg, Ezra Susser, Michaeline Bresnahan, Mady Hornig, Ted Reichborn-Kjennerud, Helga Ask, (2022). Risk of attention-deficit hyperactivity disorder in offspring of mothers with infections during pregnancy. JCPP Advances s. 1-11. doi: 10.1002/jcv2.12070
- Ellen Øen Carlsen, Ida Henriette Caspersen, Helga Ask, Ragnhild Eek Brandlistuen, Lill-Iren Schou Trogstad, Per Minor Magnus, (2022). Association between work situation and life satisfaction during the COVID-19 pandemic: prospective cohort study in Norway. BMJ Open s. 1-9. doi: 10.1136/bmjopen-2021-049586
- Ingibjörg Magnúsdóttir, Anikó Lovik, Anna Bára Unnarsdóttir, Daniel L. McCartney, Helga Ask, Kadri Kõiv, Lea Arregui Nordahl Christoffersen, Sverre Urnes Johnson, Arna Hauksdóttir, Chloe Fawns-Ritchie, Dorte Helenius, Juan González-Hijón, Li Lu, Omid Vakili Ebrahimi, Asle Hoffart, David J Porteous, Fang Fang, Johanna Jakobsdottir, Kelli Lehto, Ole Andreassen, Ole Birger Vesterager Pedersen, Thor Aspelund, Unnur Anna Valdimarsdottir, (2022). Acute COVID-19 severity and mental health morbidity trajectories in patient populations of six nations: an observational study. The Lancet Public Health s. 406-416. doi: 10.1016/S2468-2667(22)00042-1
- Ingunn Olea Lund, Njål Andersen, Marte Handal, Helga Ask, Svetlana Ondrasova Skurtveit, Eivind Ystrøm, Jasmina Burdzovic, (2022). Parental drinking, mental health and education, and extent of offspring’s healthcare utilisation for anxiety/depression: A HUNT survey and registry study. Scandinavian Journal of Public Health s. 1-9. doi: 10.1177/14034948221076212
- Martin Steen Tesli, Eirik Magnus Meek Degerud, Oleguer Plana-Ripoll, Kristin Gustavson, Fartein Ask Torvik, Eivind Ystrøm, Helga Ask, Natalia Tesli, Anne Høye, Camilla Stoltenberg, Ted Reichborn-Kjennerud, Ragnar Nesvåg, Øyvind Erik Næss, (2022). Educational attainment and mortality in schizophrenia. Acta Psychiatrica Scandinavica s. 481-493. doi: 10.1111/acps.13407
- Laura Hegemann, Espen Moen Eilertsen, Johanne Hagen Pettersen, Elizabeth Claire Corfield, Rosa Catherine Gillespie Cheesman, Leonard Frach, Ludvig Daae Bjørndal, Helga Ask, Beate St Pourcain, Alexandra Havdahl, Laurie John Hannigan, (2024). Direct and Indirect Genetic Effects on Early Neurodevelopmental Traits.
- Elizabeth Claire Corfield, Oleksandr Frei, Alexey Shadrin, Zillur Rahman, Aihua Lin, Lavinia Athanasiu, Bayram Cevdet Akdeniz, Laurie Hannigan, Robyn Wootton, Chloe Austerberry, Amanda Hughes, Martin Steen Tesli, Lars Tjelta Westlye, Hreinn Stefansson, Kari Stefansson, Pål Rasmus Njølstad, Per Minor Magnus, Davies Neil Martin, Vivek Appadurai, Gibran Hemani, Eivind Hovig, Tetyana Zayats, Helga Ask, Ted Reichborn-Kjennerud, Ole Andreassen, Alexandra Havdahl, (2022). The Norwegian Mother, Father, and Child cohort study (MoBa) genotyping data resource: MoBaPsychGen pipeline v.1.
- Helga Ask, (2025). Hvordan har pandemien påvirket barn og unge? Dette viser forskningen.
- Helga Ask, (2024). Post-pandemic mental health: Risk and resilience in young people.
- Johanne Hagen Pettersen, Espen Moen Eilertsen, Laura Hegemann, Laurie John Hannigan, Ingunn Olea Lund, Pia Jensen, Elizabeth Claire Corfield, Eivind Ystrøm, Ole Andreassen, Alexandra Havdahl, Ragnhild Eek Brandlistuen, Helga Ask, (2024). Direct and indirect genetic inluences on mental distress in mother-father-offspring trios during the Covid-19 lockdown.
- Adrian Dahl Askelund, Robyn E Wootton, Fartein Ask Torvik, Rebecca B. Lawn, Helga Ask, Elizabeth Claire Corfield, Maria Christine Magnus, Ted Reichborn-Kjennerud, Per Minor Magnus, Ole Andreassen, Camilla Stoltenberg, George Davey Smith, Neil M. Davies, Alexandra Havdahl, Laurie John Hannigan, (2024). Assessing causal links between age at menarche and adolescent mental health: triangulation of evidence from a Registered Report.
- Laura Hegemann, Espen Moen Eilertsen, Johanne Hagen Pettersen, Elizabeth Claire Corfield, Rosa Catherine Gillespie Cheesman, Leonard Frach, Ludvig Daae Bjørndal, Helga Ask, Beate St Pourcain, Alexandra Havdahl, Laurie John Hannigan, (2024). Direct and Indirect Genetic Effects on Early Neurodevelopmental Traits (updated results).
- Helga Ask, Ingunn Olea Lund, Alexandra Havdahl, (2024). Hva forsker vi på i PsychGen-senteret - og hvordan skal vi inkludere brukere?.
- Anastasia Izotova, Line Indrevoll Stänicke, Becky Mars, Laurie Hannigan, Helga Ask, Kim Stene-Larsen, George Davey-Smith, Anne Reneflot, Anne-Siri Øyen, Alexandra Havdahl, Robyn Wootton, (2024). Characterising Early Childhood Self-harm in the Norwegian Mother, Father and Child Cohort Study (MoBa).
- Helga Ask, (2024). The Norwegian Mother, Father and Child cohort study.
- Helga Ask, (2024). Aims and overview of works and plans in Covid-19 projects.
- Johanne Hagen Pettersen, Helga Ask, (2024). Direct and Indirect Genetic Influences on Mental Distress in Mother-Father-Offspring Trios.
- Elizabeth Claire Corfield, Laurie John Hannigan, Ted Reichborn-Kjennerud, Helga Ask, Alexandra Havdahl, (2024). Investigating the relationship between sleep phenotypes and neurodevelopmental conditions in the Norwegian Mother, Father, and Child Cohort Study (MoBa).
- Johanne Hagen Pettersen, Helga Ask, (2024). Direct and Indirect Genetic Influences on Mental Distress in Mother-Father-Offspring Trios.
- Ingunn Olea Lund, Laurie Hannigan, Helga Ask, Jo Adrian Dahl Askelund, Laura Hegemann, Elizabeth Claire Corfield, Robyn Wootton, Yasmin Ahmadzadeh, George Davey smith, Tom A. McAdams, Eivind Ystrøm, Alexandra Havdahl, (2024). Triangulation in research.
- Ingunn Olea Lund, Pia Jensen, Christian Madsen, Lars Johan Hauge, Alexandra Havdahl, Anne Reneflot, Ragnhild Eek Brandlistuen, Helga Ask, (2024). Age-group variations in patterns of psychiatric healthcare utilization during the pandemic among children and adolescents with pre-existing diagnoses.
- Helga Ask, (2024). Post-pandemic mental health: Risk and resilience in young people.
- Laurie J. Hannigan, Ingunn Olea Lund, Jo Adrian Dahl Askelund, Eivind Ystrøm, Elizabeth Claire Corfield, Helga Ask, Alexandra Havdahl, (2023). Genotype–environment interplay in associations between maternal drinking and offspring emotional and behavioral problems – CORRIGENDUM. Psychological Medicine doi: 10.1017/S0033291723003483
- Pia Jensen, Bo Lars Engdahl, Kristin Gustavson, Ingunn Olea Lund, Johanne Hagen Pettersen, Christian Madsen, Lars Johan Hauge, Ann Kristin Skrindo Knudsen, Anne Reneflot, Ragnhild Eek Brandlistuen, Helga Ask, Ragnar Nesvåg, (2023). Erratum: Correction: Incidence rates of treated mental disorders before and during the COVID-19 pandemic-a nationwide study comparing trends in the period 2015 to 2021 (BMC psychiatry (2023) 23 1 (668)). BMC Psychiatry doi: 10.1186/s12888-023-05367-7
- Ziada Ayorech, Neil Davies, George Davey Smith, Hunna J Watson, Zeynep Yilmaz, Cynthia M Bulik, Ole Andreassen, Pål Rasmus Njølstad, Laurie John Hannigan, Martin Steen Tesli, Ragna Bugge Askeland, Ted Reichborn-Kjennerud, Helga Ask, Eivind Ystrøm, Alexandra Havdahl, (2023). Causal risk factors for childhood eating behaviours and adulthood anorexia nervosa. A between and within family Mendelian randomisation study.
- Johanne Hagen Pettersen, Helga Ask, (2023). Eating problems among adolescents before and during the Covid-19 pandemic.
- Elizabeth Claire Corfield, Laurie John Hannigan, Ted Reichborn-Kjennerud, Helga Ask, Alexandra Havdahl, (2023). Investigating the Relationship between Sleep Phenotypes and Neurodevelopmental Conditions in Children and Adolescents from the Norwegian Mother, Father, and Child Cohort Study (MoBa).
- Laura Hegemann, Elizabeth Claire Corfield, Espen Moen Eilertsen, Rosa Catherine Gillespie Cheesman, Helga Ask, Laurie John Hannigan, Alexandra Havdahl, (2023). Indirect and Direct Genetic Effects in Early Neurodevelopmental Traits.
- Laurie John Hannigan, Martin Steen Tesli, Elizabeth Claire Corfield, Daniela Bragantini, Laura Hegemann, Ole Andreassen, Helga Ask, Alexandra Havdahl, (2023). Genetic overlap between ADHD and cardiometabolic traits: an investigation in MoBa using polygenic transmission disequilibrium analyses.
- Adrian Dahl Askelund, Laura Hegemann, Elizabeth Claire Corfield, Eivind Ystrøm, Helga Ask, Alexandra Havdahl, Laurie John Hannigan, (2023). Genetic and environmental factors associated with differentiation between behavioural and emotional problems across early life.
- Ingunn Olea Lund, Njål Andersen, Helga Ask, Jasmina Burdzovic Andreas, (2023). Kan foreldres alkoholbruk og psykiske helse påvirke unges søvnplager?. Forskersonen.no
- Ingunn Olea Lund, Laurie Hannigan, Helga Ask, Jo Adrian Dahl Askelund, Laura Hegemann, Elizabeth Claire Corfield, Robyn Wootton, George Davey smith, Tom A. McAdams, Eivind Ystrøm, Alexandra Havdahl, (2023). PRENATAL MATERNAL STRESS: TRIANGULATING EVIDENCE FOR INTRAUTERINE EXPOSURE EFFECTS ON BIRTH AND EARLY CHILDHOOD OUTCOMES ACROSS MULTIPLE APPROACHES.
- Ingunn Olea Lund, Laurie Hannigan, Helga Ask, Jo Adrian Dahl Askelund, Laura Hegemann, Elizabeth Claire Corfield, Robyn Wootton, George Davey smith, Tom A. McAdams, Eivind Ystrøm, Alexandra Havdahl, (2023). Prenatal maternal stress: triangulating evidence for intrauterine exposure effects on birth and early childhood outcomes across multiple approaches.
- Johanne Hagen Pettersen, Laura Hegemann, Kristin Gustavson, Ingunn Olea Lund, Pia Jensen, Ragnar Nesvåg, Alexandra Havdahl, Ragnhild Eek Brandlistuen, Laurie John Hannigan, Helga Ask, (2023). Eating problems among adolescents before and during the Covid-19 pandemic.
- Johanne Hagen Pettersen, Laura Hegemann, Kristin Gustavson, Ingunn Olea Lund, Pia Jensen, Ragnar Nesvåg, Alexandra Havdahl, Ragnhild Eek Brandlistuen, Laurie John Hannigan, Helga Ask, (2023). Eating problems among adolescents before and during the Covid-19 pandemic.
- Johanne Hagen Pettersen, Helga Ask, (2023). Eating problems among adolescents before and during the Covid-19 pandemic.
- Elizabeth Claire Corfield, Laurie John Hannigan, Alexandra Havdahl, Helga Ask, (2023). Investigating the genetic architecture of sleep problems in childhood and adolescence in the Norwegian Mother, Father, and Child Cohort Study (MoBa).
- Helga Ask, Ragnhild Eek Brandlistuen, Ingunn Olea Lund, (2023). Post-pandemic mental health: Risk and resilience in young people (covidmentYOUNG).
- Katharina Haag, Mari Vaage Wang, Helga Ask, Nina Alexandersen, Henrik Daae Zachrisson, Tyler Watts, Ragnhild Eek Brandlistuen, (2023). Can Kindergarten experiences moderate effects of early risk classes on middle childhood behavioural and academic outcomes?,.
- Katharina Haag, Mari Vaage Wang, Helga Ask, Nina Alexandersen, Henrik Daae Zachrisson, Tyler Watts, Ragnhild Eek Brandlistuen, (2023). Does Kindergarten quality moderate the effects of early risk on later childhood behavioural and academic outcomes?.
- Ingunn Olea Lund, Christian Madsen, Lars Johan Hauge, Pia Jensen, Anne Reneflot, Helga Ask, (2023). Psychiatric healthcare use prior to and during the pandemic among children and adolescents with pre-existing mental health problems.
- Laurie John Hannigan, Laura Hegemann, Helga Ask, Elizabeth Claire Corfield, Alexandra Havdahl, (2022). Latent polygenic profile analysis (LPPA) as a tool for dimension reduction and exploring the phenotypic correlates of overlapping genetic liabilities .
- Helga Ask, Alexandra Karoline Saasen Havdahl, (2022). Current achievements and new opportunities in MoBa.
- Ludvig Daae Bjørndal, Espen Moen Eilertsen, Jessie R. Baldwin, Ziada Ayorech, Rosa Catherine Gillespie Cheesman, Yasmin Ahmadzadeh, Helga Ask, Laurie John Hannigan, Tom A. McAdams, Alexandra Havdahl, Ragnhild Bang Nes, Espen Røysamb, Eivind Ystrøm, (2022). Disentangling intrafamilial effects on maternal depression using trio-GCTA. European Neuropsychopharmacology doi: 10.1016/j.euroneuro.2022.07.125
- Helga Ask, (2022). De som fikk korona hardest, blir dobbelt så ofte deprimerte og sliter lenger.
- Laurie John Hannigan, Ingunn Olea Lund, Adrian Dahl Askelund, Eivind Ystrøm, Elizabeth Claire Corfield, Helga Ask, Alexandra Karoline Saasen Havdahl, (2022). Gene-environment interplay in associations between maternal at-risk drinking and early childhood emotional and behavioural development in the Norwegian Mother, Father, and Child Cohort.
- Helga Ask, (2022). Slik påvirker corona psyken.
- Elizabeth Claire Corfield, Alexey Shadrin, Oleksandr Frei, Zillur Rahman, Aihua Lin, Lavinia Athanasiu, Bayram Cevdet Akdeniz, Laurie John Hannigan, Robyn E Wootton, Chloe Austerberry, Tetyana Zayats, Helga Ask, Ted Reichborn-Kjennerud, Ole Andreassen, Alexandra Havdahl, (2022). Genetic profile of the Norwegian Mother, Father, and Child Cohort Study (MoBa): Results from the MoBaPsychGen pipeline.
- Ludvig Daae Bjørndal, Espen Moen Eilertsen, Jessie R. Baldwin, Ziada Ayorech, Rosa Catherine Gillespie Cheesman, Yasmin Ahmadzadeh, Helga Ask, Laurie John Hannigan, Tom A. McAdams, Alexandra Havdahl, Ragnhild Bang Nes, Espen Røysamb, Eivind Ystrøm, (2022). Disentangling intrafamilial effects on maternal depression using trio-GCTA.
- Elizabeth Claire Corfield, Oleksandr Frei, Alexey Shadrin, Zillur Rahman, Aihua Lin, Lavinia Athanasiu, Bayram Cevdet Akdeniz, Laurie John Hannigan, Robyn E Wootton, Chloe Austerberry, Amanda Hughes, Martin Steen Tesli, Lars Tjelta Westlye, Hreinn Stefánsson, Kári Stefánsson, Pål Rasmus Njølstad, Per Minor Magnus, Neil M. Davies, Vivek Appadurai, Gibran Hemani, Eivind Hovig, Tetyana Zayats, Helga Ask, Ted Reichborn-Kjennerud, Ole Andreassen, Alexandra Havdahl, (2022). The Norwegian Mother, Father, and Child cohort study (MoBa) genotyping data resource: the MoBaPsychGen_v1 pipeline.
- Kjersti Mæhlum Walle, Helga Ask, Kristin Gustavson, (2022). Risk of ADHD in offspring of mothers with infections during pregnancy.
- Kjersti Mæhlum Walle, Helga Ask, Kristin Gustavson, (2022). Maternal autoimmune disorders in pregnancy and risk of ADHD in offspring.
- Johanne Hagen Pettersen, Helga Ask, Ragnhild Eek Brandlistuen, (2022). Covid-19 and impact on mental health.
- Adrian Dahl Askelund, Laura Hegemann, Elizabeth Claire Corfield, Helga Ask, Eivind Ystrøm, Alexandra Havdahl, Laurie John Hannigan, (2022). The genomics of psychiatric symptom differentiation in early life.
- Kadri Kõiv, Ragna Bugge Askeland, Daniel L. McCartney, Urmo Võsa, Elis Haan, Reedik Mägi, Lili Milani, Dorte Helenius Mikkelsen, Helga Ask, Unnur Anna Valdimarsdóttir, Kelli Lehto, (2022). Association between the genetic liability to psychiatric disorders and covid-19 illness severity.
- Ragna Bugge Askeland, Laurie John Hannigan, Kevin Sean O'Connell, Elizabeth Claire Corfield, Oleksandr Frei, Anita Thapar, George Davey-Smith, Ted Reichborn-Kjennerud, Ole Andreassen, Helga Ask, Alexandra Havdahl, (2022). Developmental manifestations of polygenic risk for bipolar disorder from infancy to middle childhood.
- Johanne Hagen Pettersen, Laurie John Hannigan, Espen Moen Eilertsen, Kristin Gustavson, Ingunn Olea Lund, Pia Jensen, Alexandra Havdahl, Ragnar Nesvåg, Ragnhild Eek Brandlistuen, Helga Ask, (2022). Indirect genetic influences on mental distress in mother-father-offspring trios during the covid-19 lockdown.
- Johanne Hagen Pettersen, Laurie John Hannigan, Kristin Gustavson, Ingunn Olea Lund, Pia Jensen, Ragnar Nesvåg, Ragnhild Eek Brandlistuen, Helga Ask, (2022). Factors associated with change in adolescent mental distress during the first year of the Covid-19 pandemic.
- Helga Ask, Johanne Hagen Pettersen, Pia Jensen, (2022). Pandemien og den psykiske folkehelsen.
- Pia Jensen, Christian Madsen, Lars Johan Hauge, Kristin Gustavson, Ingunn Olea Lund, Johanne Hagen Pettersen, Ann Kristin Skrindo Knudsen, Anne Reneflot, Ragnhild Eek Brandlistuen, Unnur Anna Valdimarsdóttir, Helga Ask, Ragnar Nesvåg, (2022). Mental health treatment among adults with pre-existing mental disorders during the COVID-19 pandemic: a registry-based study from Norway.
- Helga Ask, (2022). How can we use MoBa data to understand mental health during the covid-19 pandemic?.
- Wikus Barkhuizen, Jean-Baptiste Pingault, Biyao Wang, Laurie John Hannigan, Espen Moen Eilertsen, Ole Andreassen, Helga Ask, Martin Steen Tesli, Ragna Bugge Askeland, George Davey Smith, Neil Davies, Ted Reichborn-Kjennerud, Eivind Ystrøm, Alexandra Havdahl, (2021). Direct and indirect genetic influences involved in the intergenerational transmission of risk for ADHD in the Norwegian Mother, Father and Child Cohort. Behavior Genetics s. 692-691.
- Helga Ask, (2021). Mors adferd kan overføre psykiske problemer til barn.