Christian Krog Tamnes

Professor - PROMENTA

Norwegian version of this page

Email c.k.tamnes@psykologi.uio.no

Phone +47 22845092

Room S04-13

Available hours By agreement

Username

Visiting address Forskningsveien 3A Harald Schjelderups hus 0373 Oslo

Postal address Postboks 1094 Blindern 0317 Oslo

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Academic Interests

Structural and functional brain maturation in childhood and adolescence
Neurocognitive development in relation to mental health
Cognitive development, particularly in the domains of cognitive control, working memory, learning, and long-term memory
Effects of social and emotional information on cognitive processes
Predictors and risk factors in neurocognitive development
Multimodal neuroimaging (MRI, DTI, EEG)

Students interested in pursuing a cand. psychol or MA thesis on any of these research topics are wellcome to contact me.

Higher education and employment history

Professor, PROMENTA Research Center and NORMENT Center of Excellence, Department of Psychology, University of Oslo, 2019-current
Researcher, Division of Mental Health and Substance Abuse, Diakonhjemmet Hospital, 2018-current
Visiting researcher, Brain and Development Research Center, Leiden University, Netherlands, 2016
Researcher, Section for Cognitive and Clinical Neuroscience and Center for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, 2014-2018
Fulbright visiting researcher, Multimodal Imaging Laboratory, University of California San Diego, USA, 2011
Postdoctoral researcher, Center for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, 2010-2014
PhD, Department of Psychology, University of Oslo, 2006-2010
Graduate program in clinical psychology (Cand. Psychol), University of Oslo, 2000-2006

Tags: Developmental psychology, Cognitive neuroscience, PROMENTA

Spalek, Klara; Straathof, Milou; Koyuncu, Lal; Grydeland, Håkon; van der Geest, Anouk & van‘t Hof, Sophie R. [Show all 13 contributors for this article] (2024). Pregnancy renders anatomical changes in hypothalamic substructures of the human brain that relate to aspects of maternal behavior. Psychoneuroendocrinology. ISSN 0306-4530. 164. doi: 10.1016/j.psyneuen.2024.107021.
Ge, Ruiyang; Yu, Yuetong; Qi, Yi Xuan; Fan, Yu-nan; Chen, Shiyu & Gao, Chuntong [Show all 33 contributors for this article] (2024). Normative modelling of brain morphometry across the lifespan with CentileBrain: algorithm benchmarking and model optimisation. The Lancet Digital Health. ISSN 2589-7500. 6(3), p. e211–e221. doi: 10.1016/S2589-7500(23)00250-9.
Zhu, Yinghan; Maikusa, Norihide; Radua, Joaquim; Sämann, Philipp G.; Fusar-Poli, Paolo & Agartz, Ingrid [Show all 82 contributors for this article] (2024). Using brain structural neuroimaging measures to predict psychosis onset for individuals at clinical high-risk. Molecular Psychiatry. ISSN 1359-4184. doi: 10.1038/s41380-024-02426-7.
Dahl, Andreas; Eilertsen, Espen Moen; Fernandez Rodriguez Cabello, Sara; Norbom, Linn B.; Tandberg, Anneli D. & Leonardsen, Esten [Show all 11 contributors for this article] (2024). Genetic and brain similarity independently predict childhood anthropometrics and neighborhood socioeconomic conditions. Developmental Cognitive Neuroscience. ISSN 1878-9293. 65, p. 1–11. doi: 10.1016/j.dcn.2023.101339. Full text in Research Archive
Wierenga, Lara M.; Ruigrok, Amber; Aksnes, Eira Ranheim; Barth, Claudia; Beck, Dani & Burke, Sarah M. [Show all 21 contributors for this article] (2023). Recommendations for a Better Understanding of Sex and Gender in the Neuroscience of Mental Health. Biological Psychiatry: Global Open Science. ISSN 2667-1743. 4(2). doi: 10.1016/j.bpsgos.2023.100283. Full text in Research Archive
Barth, Claudia; Tamnes, Christian Krog & Agartz, Ingrid (2023). Structural brain imaging in early-onset psychosis. In Agartz, Ingrid & Smelror, Runar (Ed.), Adolescent Psychosis: Clinical and Scientific Perspectives. Academic Press. ISSN 978-0-323-89832-4.
Gardiner, Gwendolyn; Lee, Daniel I.; Baranski, Erica; Funder, David C.; Beramendi, Maite & Bastian, Brock [Show all 50 contributors for this article] (2023). The economic well-being of nations is associated with positive daily situational experiences. Current Research in Ecological and Social Psychology (CRESP). 4.
ENIGMA Clinical High Risk for, .; Haas, Shalaila S.; Ge, Ruiyang; Agartz, Ingrid; Amminger, G. Paul & Andreassen, Ole [Show all 51 contributors for this article] (2023). Normative Modeling of Brain Morphometry in Clinical High Risk for Psychosis. JAMA psychiatry. ISSN 2168-6238. 81(1), p. 77–88. doi: 10.1001/jamapsychiatry.2023.3850.
Wiker, Thea; Pedersen, Mads Lund; Ferschmann, Lia; Beck, Dani; Norbom, Linn Christin Bonaventure & Dahl, Andreas [Show all 13 contributors for this article] (2023). Assessing the Longitudinal Associations Between Decision-Making Processes and Attention Problems in Early Adolescence. Research on Child and Adolescent Psychopathology. ISSN 2730-7166. doi: 10.1007/s10802-023-01148-8. Full text in Research Archive
Ferschmann, Lia; Overweg, Ingrid; Dégeilh, Fanny; Bekkhus, Mona; Havdahl, Alexandra & von Soest, Tilmann Martin [Show all 7 contributors for this article] (2023). Development of prosocial behavior and inhibitory control in late childhood: A longitudinal exploration of sex differences and reciprocal relations. Child Development. ISSN 0009-3920. 95(1), p. 313–323. doi: 10.1111/cdev.13978. Full text in Research Archive
Dégeilh, Fanny; von Soest, Tilmann; Ferschmann, Lia; Beer, Joanne C.; Gaubert, Malo & Koerte, Inga K. [Show all 7 contributors for this article] (2023). Social problems and brain structure development following childhood mild traumatic brain injury. Cortex. ISSN 0010-9452. 162, p. 26–37. doi: 10.1016/j.cortex.2023.02.003.
Voldsbekk, Irene; Kjelkenes, Rikka; Dahl, Andreas; Holm, Madelene Christin; Lund, Martina Jonette & Kaufmann, Tobias Herbert [Show all 10 contributors for this article] (2023). Delineating disorder-general and disorder-specific dimensions of psychopathology from functional brain networks in a developmental clinical sample. Developmental Cognitive Neuroscience. ISSN 1878-9293. 62. doi: 10.1016/j.dcn.2023.101271. Full text in Research Archive
Wiker, Thea; Norbom, Linn B.; Beck, Dani; Agartz, Ingrid; Andreassen, Ole A. & Alnæs, Dag [Show all 14 contributors for this article] (2023). Reaction Time Variability in Children Is Specifically Associated With Attention Problems and Regional White Matter Microstructure. Biological Psychiatry: Cognitive Neuroscience and Neuroimaging. ISSN 2451-9022. 8(8), p. 832–840. doi: 10.1016/j.bpsc.2023.03.010. Full text in Research Archive
Beck, Dani; Ferschmann, Lia; MacSweeney, Niamh; Norbom, Linn Christin Bonaventure; Wiker, Thea & Aksnes, Eira Ranheim [Show all 15 contributors for this article] (2023). Puberty differentially predicts brain maturation in male and female youth: A longitudinal ABCD Study. Developmental Cognitive Neuroscience. ISSN 1878-9293. 61. doi: 10.1016/j.dcn.2023.101261. Full text in Research Archive
Buchanan, Erin M.; Lewis, Savannah C.; Paris, Bastien; Forscher, Patrick S.; Pavlacic, Jeffrey M. & Beshears, Julie E. [Show all 340 contributors for this article] (2023). The Psychological Science Accelerator's COVID-19 rapid-response dataset. Scientific Data. ISSN 2052-4463. 10, p. 1–15. doi: 10.1038/s41597-022-01811-7. Full text in Research Archive Show summary
In response to the COVID-19 pandemic, the Psychological Science Accelerator coordinated three large-scale psychological studies to examine the effects of loss-gain framing, cognitive reappraisals, and autonomy framing manipulations on behavioral intentions and affective measures. The data collected (April to October 2020) included specific measures for each experimental study, a general questionnaire examining health prevention behaviors and COVID-19 experience, geographical and cultural context characterization, and demographic information for each participant. Each participant started the study with the same general questions and then was randomized to complete either one longer experiment or two shorter experiments. Data were provided by 73,223 participants with varying completion rates. Participants completed the survey from 111 geopolitical regions in 44 unique languages/dialects. The anonymized dataset described here is provided in both raw and processed formats to facilitate re-use and further analyses. The dataset offers secondary analytic opportunities to explore coping, framing, and self-determination across a diverse, global sample obtained at the onset of the COVID-19 pandemic, which can be merged with other time-sampled or geographic data.
Voldsbekk, Irene; Kjelkenes, Rikka; Wolfers, Thomas; Dahl, Andreas; Lund, Martina Jonette & Kaufmann, Tobias [Show all 12 contributors for this article] (2023). Shared pattern of impaired social communication and cognitive ability in the youth brain across diagnostic boundaries. Developmental Cognitive Neuroscience. ISSN 1878-9293. 60. doi: 10.1016/j.dcn.2023.101219. Full text in Research Archive
Lindseth, Linn Renate Sjøveian; de Lange, Ann-Marie Glasø; van der Meer, Dennis; Agartz, Ingrid; Westlye, Lars Tjelta & Tamnes, Christian Krog [Show all 7 contributors for this article] (2023). Associations between reproductive history, hormone use, APOE ε4 genotype and cognition in middle- to older-aged women from the UK Biobank. Frontiers in Aging Neuroscience. ISSN 1663-4365. 14:1014605, p. 1–13. doi: 10.3389/fnagi.2022.1014605. Full text in Research Archive Show summary
Introduction: Relative to men, women are at a higher risk of developing age-related neurocognitive disorders including Alzheimer’s disease. While women’s health has historically been understudied, emerging evidence suggests that reproductive life events such as pregnancy and hormone use may influence women’s cognition later in life. Methods: We investigated the associations between reproductive history, exogenous hormone use, apolipoprotein (APOE) ε4 genotype and cognition in 221,124 middle- to older-aged (mean age 56.2 ± 8.0 years) women from the UK Biobank. Performance on six cognitive tasks was assessed, covering four cognitive domains: episodic visual memory, numeric working memory, processing speed, and executive function. Results: A longer reproductive span, older age at menopause, older age at first and last birth, and use of hormonal contraceptives were positively associated with cognitive performance later in life. Number of live births, hysterectomy without oophorectomy and use of hormone therapy showed mixed findings, with task-specific positive and negative associations. Effect sizes were generally small (Cohen’s d < 0.1). While APOE ε4 genotype was associated with reduced processing speed and executive functioning, in a dose-dependent manner, it did not influence the observed associations between female-specific factors and cognition. Discussion: Our findings support previous evidence of associations between a broad range of female-specific factors and cognition. The positive association between a history of hormonal contraceptive use and cognition later in life showed the largest effect sizes (max. d = 0.1). More research targeting the long-term effects of female-specific factors on cognition and age-related neurocognitive disorders including Alzheimer’s disease is crucial for a better understanding of women’s brain health and to support women’s health care.
Kjelkenes, Rikka; Wolfers, Thomas; Alnæs, Dag; van der Meer, Dennis; Pedersen, Mads Lund & Dahl, Andreas [Show all 12 contributors for this article] (2023). Mapping Normative Trajectories of Cognitive Function and Its Relation to Psychopathology Symptoms and Genetic Risk in Youth. Biological Psychiatry: Global Open Science. ISSN 2667-1743. 3(2), p. 255–263. doi: 10.1016/j.bpsgos.2022.01.007. Full text in Research Archive
Tamnes, Christian Krog & Ferschmann, Lia (2022). Ungdommers atferd og hjerneutvikling. In Lundgren, Charlotte (Eds.), Psykisk oppvekst. Barn og unges psykiske helse fra 0-25 år. Rådet for psykisk helse. ISSN 978-82-91635-46-0. p. 50–57.
Richie-Halford, A.; Cieslak, M.; Ai, L.; Cafarra, S.; Covitz, S. & Franco, A. R. [Show all 50 contributors for this article] (2022). An analysis ready and quality controlled resource for pediatric brain white-matter research. Scientific Data. ISSN 2052-4463. 9. doi: 10.1038/s41597-022-01816-2.
Kjelkenes, Rikka; Wolfers, Thomas; Alnæs, Dag; Norbom, Linn Christin Bonaventure; Voldsbekk, Irene & Holm, Madelene Christin [Show all 11 contributors for this article] (2022). Deviations from normative brain white and gray matter structure are associated with psychopathology in youth. Developmental Cognitive Neuroscience. ISSN 1878-9293. 58. doi: 10.1016/j.dcn.2022.101173. Full text in Research Archive
Baldwin, Helen; Radua, Joaquim; Antoniades, Mathilde; Haas, Shalaila S.; Frangou, Sophia & Agartz, Ingrid [Show all 111 contributors for this article] (2022). Neuroanatomical heterogeneity and homogeneity in individuals at clinical high risk for psychosis. Translational Psychiatry. ISSN 2158-3188. 12(297). doi: 10.1038/s41398-022-02057-y. Full text in Research Archive
Walton, Esther; Bernardoni, Fabio; Batury, Victoria-Luise; Bahnsen, Klaas; Larivière, Sara & Abbate-Daga, Giovanni [Show all 59 contributors for this article] (2022). Brain Structure in Acutely Underweight and Partially Weight-Restored Individuals With Anorexia Nervosa: A Coordinated Analysis by the ENIGMA Eating Disorders Working Group. Biological Psychiatry. ISSN 0006-3223. 92(9), p. 730–738. doi: 10.1016/j.biopsych.2022.04.022. Full text in Research Archive
Norbom, Linn Christin Bonaventure; Hanson, Jamie; van der Meer, Dennis; Ferschmann, Lia; Røysamb, Espen & von Soest, Tilmann [Show all 10 contributors for this article] (2022). Parental socioeconomic status is linked to cortical microstructure and language abilities in children and adolescents. Developmental Cognitive Neuroscience. ISSN 1878-9293. 56. doi: 10.1016/j.dcn.2022.101132. Full text in Research Archive
Dorison, Charles A; Lerner, Jennifer S.; Heller, Blake H.; Rothman, Alexander J.; Kawachi, Ichiro I. & Wang, Ke [Show all 50 contributors for this article] (2022). In COVID-19 Health Messaging, Loss Framing Increases Anxiety with Little-to-No Concomitant Benefits: Experimental Evidence from 84 Countries. Affective Science. ISSN 2662-2041. 3, p. 577–602. doi: 10.1007/s42761-022-00128-3.
Legate, Nicole; Nguyen, Thuy-vy; Weinstein, Netta; Moller, Arlen C; Legault, Lisa & Vally, Zahir [Show all 50 contributors for this article] (2022). A global experiment on motivating social distancing during the COVID-19 pandemic. Proceedings of the National Academy of Sciences of the United States of America. ISSN 0027-8424. 119(22). doi: 10.1073/pnas.2111091119. Full text in Research Archive
AuBuchon, Angela M.; Elliott, Emily M.; Morey, Candice C.; Jarrold, Christopher; Cowan, Nelson & Adams, Eryn J. [Show all 37 contributors for this article] (2022). Lexical Access Speed and the Development of Phonological Recoding during Immediate Serial Recall. Journal of Cognition and Development. ISSN 1524-8372. 23, p. 624–643. doi: 10.1080/15248372.2022.2083140.
Bøen, Rune; Quintana, Daniel; Ladouceur, Cecile D. & Tamnes, Christian Krog (2022). Age-related differences in the error-related negativity and error positivity in children and adolescents are moderated by sample and methodological characteristics: A meta-analysis. Psychophysiology. ISSN 0048-5772. 59(6). doi: 10.1111/psyp.14003. Full text in Research Archive Show summary
The error- related negativity (ERN) and the error positivity (Pe) are electrophysi-ological components associated with error processing that are thought to exhibit distinctive developmental trajectories from childhood to adulthood. To investi-gate the age and age moderation effects on the ERN and the Pe strength during development, we conducted a preregistered three- level meta- analysis synthe-sizing 120 and 41 effect sizes across 18 group comparison studies and 19 cor-relational studies, respectively. The meta- analysis included studies with mean age between 3.6 and 28.7 (min- max age range: 3.5 and 49.8) years for age- group comparisons and 6.1 to 18.7 (min- max age range: 4.0– 35.7) years for age cor-relations. Results showed that age was associated with a more negative ERN (SMD = −.433, r = −.230). No statistically significant association between age and the Pe was found (SMD = .059, r = −.091), except for in a group comparison between younger and older adolescents. The age effects were not significantly moderated by whether a Flanker or a Go/No- Go task was used, whereas a proba-bilistic learning task moderated the age effect on the Pe. Moreover, the Fz and Cz electrode sites yielded stronger negative associations between age and the ERN and the Pe, respectively. The results confirm that the ERN and the Pe show differential development courses and suggest that sample and methodological characteristics influence the age effects, and lay the foundation for investigations of developmental patterns of the ERN and the Pe in relation to psychopathology and early genetic and environmental risk factors.
Ferschmann, Lia; Bos, Marieke G.N.; Herting, Megan M.; Mills, Kathryn L. & Tamnes, Christian Krog (2022). Contextualizing adolescent structural brain development:Environmental determinants and mental health outcomes. Current Opinion in Psychology. ISSN 2352-250X. 44, p. 170–176. doi: 10.1016/j.copsyc.2021.09.014. Full text in Research Archive
Frangou, Sophia; Modabbernia, Amirhossein; Williams, Steven C. R.; Papachristou, Efstathios; Doucet, Gaëlle E. & Agartz, Ingrid [Show all 63 contributors for this article] (2022). Cortical thickness across the lifespan: Data from 17,075 healthy individuals aged 3-90 years. Human Brain Mapping. ISSN 1065-9471. 43(1), p. 431–451. doi: 10.1002/hbm.25364. Full text in Research Archive
Dima, Danai; Modabbernia, Amirhossein; Papachristou, Efstathios; Doucet, Gaëlle E.; Agartz, Ingrid & Aghajani, Moji [Show all 52 contributors for this article] (2022). Subcortical volumes across the lifespan: Data from 18,605 healthy individuals aged 3–90 years. Human Brain Mapping. ISSN 1065-9471. 43(1), p. 452–469. doi: 10.1002/hbm.25320. Full text in Research Archive
Baranski, E.; Gardiner, G.; Lee, D.; Funder, D. C.; Tamnes, Christian Krog & Leknes, Siri [Show all 9 contributors for this article] (2021). Who in the World Is Trying to Change Their Personality Traits? Volitional Personality Change Among College Students in Six Continents. Journal of Personality and Social Psychology. ISSN 0022-3514. 121(5), p. 1140–1156. doi: 10.1037/pspp0000389.
Nyvold, Otelie; Nygaard, Egil; Augusti, Else-Marie & Tamnes, Christian Krog (2021). Unity or diversity of executive functioning in children and adolescents with post-traumatic stress symptoms? A systematic review and meta-analysis. Child Neuropsychology: A Journal of Normal and Abnormal Development in Childhood and Adolescence. ISSN 0929-7049. 28, p. 374–393. doi: 10.1080/09297049.2021.1979950. Full text in Research Archive
Bølstad, Evalill; Havighurst, Sophie S.; Tamnes, Christian K.; Nygaard, Egil; Bjørk, Rune Flaaten & Stavrinou, Maria [Show all 7 contributors for this article] (2021). A Pilot Study of a Parent Emotion Socialization Intervention: Impact on Parent Behavior, Child Self-Regulation, and Adjustment. Frontiers in Psychology. ISSN 1664-1078. 12, p. 1–15. doi: 10.3389/fpsyg.2021.730278. Full text in Research Archive
Jalbrzikowski, Maria; Hayes, Rebecca A.; Wood, Stephen J.; Dorte, Nordholm; Zhou, Juan H & Fusar-Poli, Paolo [Show all 51 contributors for this article] (2021). Association of Structural Magnetic Resonance Imaging Measures With Psychosis Onset in Individuals at Clinical High Risk for Developing Psychosis: An ENIGMA Working Group Mega-analysis. JAMA psychiatry. ISSN 2168-6238. 78(7), p. 753–766. doi: 10.1001/jamapsychiatry.2021.0638.
Sønderby, Ida Elken; Ching, Christopher R. K.; Thomopoulos, Sophia I.; van der Meer, Dennis; Sun, Daqiang & Villalon-Reina, Julio E. [Show all 52 contributors for this article] (2021). Effects of copy number variations on brain structure and risk for psychiatric illness: Large-scale studies from the ENIGMA working groups on CNVs. Human Brain Mapping. ISSN 1065-9471. 43, p. 470–499. doi: 10.1002/hbm.25354. Full text in Research Archive
Goddings, Anne-Lise; Roalf, David; Lebel, Catherine & Tamnes, Christian Krog (2021). Development of white matter microstructure and executive functions during childhood and adolescence: a review of diffusion MRI studies. Developmental Cognitive Neuroscience. ISSN 1878-9293. 51:101008, p. 1–12. doi: 10.1016/j.dcn.2021.101008.
Sønderby, Ida Elken; van der Meer, Dennis; Moreau, Clara; Kaufmann, Tobias; Walters, G. Bragi & Ellegaard, Maria [Show all 76 contributors for this article] (2021). 1q21.1 distal copy number variants are associated with cerebral and cognitive alterations in humans. Translational Psychiatry. ISSN 2158-3188. 11. doi: 10.1038/s41398-021-01213-0. Full text in Research Archive
Wang, Ke; Kunst, Jonas R.; Tamnes, Christian Krog; Schei, Vidar; Sverdrup, Therese E. & Askelund, Adrian Dahl [Show all 51 contributors for this article] (2021). A multi-country test of brief reappraisal interventions on emotions during the COVID-19 pandemic. Nature Human Behaviour. ISSN 2397-3374. doi: 10.1038/s41562-021-01173-x. Full text in Research Archive
Jones, Benedict C.; DeBruine, Lisa M.; Flake, Jessica K.; Liuzza, Marco Tullio; Antfolk, Jan & Arinze, Nwadiogo C. [Show all 50 contributors for this article] (2021). To which world regions does the valence–dominance model of social perception apply? Nature Human Behaviour. ISSN 2397-3374. 5(jan), p. 159–169. doi: 10.1038/s41562-020-01007-2. Full text in Research Archive
Pavlov, Yuri G.; Adamian, Nika; Appelhoff, Stefan; Arvaneh, Mahnaz; Benwell, Christopher S.Y. & Beste, Christian [Show all 59 contributors for this article] (2021). #EEGManyLabs: Investigating the replicability of influential EEG experiments. Cortex. ISSN 0010-9452. 144, p. 213–229. doi: 10.1016/j.cortex.2021.03.013.
Mills, Kathryn L.; Siegemund, K; Tamnes, Christian Krog; Ferschmann, Lia; Wierenga, Lara M. & Bos, Marieke G.N. [Show all 9 contributors for this article] (2021). Inter-individual variability in structural brain development from late childhood to young adulthood. NeuroImage. ISSN 1053-8119. doi: 10.1016/j.neuroimage.2021.118450. Full text in Research Archive
Elliott, Emily M.; Morey, Candice C; AuBuchon, Angela; Cowan, Nelson; Jarrold, Chris & Adams, Eryn [Show all 40 contributors for this article] (2021). Multilab Direct Replication of Flavell, Beach, and Chinsky (1966): Spontaneous Verbal Rehearsal in a Memory Task as a Function of Age. Advances in Methods and Practices in Psychological Science (AMPPS). ISSN 2515-2459. 4(2). doi: 10.1177/25152459211018187.
Backhausen, Lea L.; Herting, Megan M.; Tamnes, Christian Krog & Vetter, Nora C. (2021). Best Practices in Structural Neuroimaging of Neurodevelopmental Disorders. Neuropsychology Review. ISSN 1040-7308. 32, p. 400–418. doi: 10.1007/s11065-021-09496-2. Full text in Research Archive
Norbom, Linn Christin Bonaventure; Ferschmann, Lia; Parker, Nadine; Agartz, Ingrid; Andreassen, Ole Andreas & Paus, Tomas [Show all 8 contributors for this article] (2021). New insights into the dynamic development of the cerebral cortex in childhood and adolescence: Integrating macro- and microstructural MRI findings. Progress in Neurobiology. ISSN 0301-0082. 204, p. 1–19. doi: 10.1016/j.pneurobio.2021.102109. Full text in Research Archive
Bøen, Rune; Ferschmann, Lia; Vijayakumar, Nandita; Øverbye, Knut; Fjell, Anders Martin & Espeseth, Thomas [Show all 7 contributors for this article] (2021). Development of attention networks from childhood to young adulthood: A study of performance, intraindividual variability and cortical thickness. Cortex. ISSN 0010-9452. 138, p. 138–151. doi: 10.1016/j.cortex.2021.01.018. Full text in Research Archive
Ferschmann, Lia; Vijayakumar, Nandita; Grydeland, Håkon; Øverbye, Knut; Mills, Kathryn L. & Fjell, Anders Martin [Show all 9 contributors for this article] (2021). Cognitive reappraisal and expressive suppression relate differentially to longitudinal structural brain development across adolescence. Cortex. ISSN 0010-9452. 136, p. 109–123. doi: 10.1016/j.cortex.2020.11.022. Full text in Research Archive
Øverbye, Knut; Walhovd, Kristine B; Fjell, Anders Martin; Tamnes, Christian Krog & Huster, Rene (2021). Electrophysiological and behavioral indices of cognitive conflict processing across adolescence. Developmental Cognitive Neuroscience. ISSN 1878-9293. 48, p. 1–10. doi: 10.1016/j.dcn.2021.100929. Full text in Research Archive
Klapwijk, Eduard T.; van den Bos, Wouter; Tamnes, Christian Krog; Raschle, Nora M. & Mills, Kathryn L. (2020). Opportunities for increased reproducibility and replicability of developmental neuroimaging. Developmental Cognitive Neuroscience. ISSN 1878-9293. 47. doi: 10.1016/j.dcn.2020.100902. Full text in Research Archive
Wierenga, Lara M.; Doucet, Gaëlle E.; Dima, Danai; Agartz, Ingrid; Aghajani, Moji & Akudjedu, Theophilus N. [Show all 50 contributors for this article] (2020). Greater male than female variability in regional brain structure across the lifespan. Human Brain Mapping. ISSN 1065-9471. 43, p. 470–499. doi: 10.1002/hbm.25204. Full text in Research Archive
Ching, Christopher R. K.; Hibar, Derrek P.; Gurholt, Tiril Pedersen; Nunes, Abraham; Thomopoulos, Sophia I. & Abé, Chritsoph [Show all 51 contributors for this article] (2020). What we learn about bipolar disorder from large-scale neuroimaging: Findings and future directions from the ENIGMA Bipolar Disorder Working Group. Human Brain Mapping. ISSN 1065-9471. 43, p. 56–82. doi: 10.1002/hbm.25098. Full text in Research Archive
Haukvik, Unn Kristin H.; Gurholt, Tiril Pedersen; Nerland, Stener; Elvsåshagen, Torbjørn; Akudjedu, Theophilus N. & Alda, Martin [Show all 97 contributors for this article] (2020). In vivo hippocampal subfield volumes in bipolar disorder—A mega‐analysis from The Enhancing Neuro Imaging Genetics through Meta‐Analysis Bipolar Disorder Working Group. Human Brain Mapping. ISSN 1065-9471. 43, p. 385–398. doi: 10.1002/hbm.25249. Full text in Research Archive
Gardiner, Gwendolyn; Lee, Daniel; Baranski, Erica; Funder, David; Leknes, Siri & Waldal Holen, Vera [Show all 9 contributors for this article] (2020). Happiness around the World: A Combined Etic-Emic Approach across 63 Countries. PLOS ONE. ISSN 1932-6203. 15(12). doi: 10.1371/journal.pone.0242718. Full text in Research Archive
Bang, Lasse; Tamnes, Christian Krog; Norbom, Linn Christin Bonaventure; Thomassen, Rut Anne; Solberg, Jill & SKOTTE, LAILA HOLGERSEN [Show all 9 contributors for this article] (2020). Associations of age, body mass index and biochemical parameters with brain morphology in patients with anorexia nervosa. European Eating Disorders Review. ISSN 1072-4133. 29(1), p. 74–85. doi: 10.1002/erv.2803. Full text in Research Archive
Gurholt, Tiril Pedersen; Lonning, Vera Louise Hiorth; Nerland, Stener; Jørgensen, Kjetil Nordbø; Haukvik, Unn Kristin H. & Alloza, Clara [Show all 41 contributors for this article] (2020). Intracranial and subcortical volumes in adolescents with early‐onset psychosis: A multisite mega‐analysis from the ENIGMA consortium. Human Brain Mapping. ISSN 1065-9471. p. 373–384. doi: 10.1002/hbm.25212. Full text in Research Archive
Øverbye, Knut; Bøen, Rune; Huster, Rene & Tamnes, Christian Krog (2020). Learning from mistakes: How does the brain handle errors? . Frontiers for Young Minds. ISSN 2296-6846. 08.80. doi: 10.3389/frym.2020.00080. Full text in Research Archive
Tamnes, Christian Krog & Mills, Kathryn L. (2020). Imaging structural brain development in childhood and adolescence. In Michael S., Gazzaniga & Mangun, George R (Ed.), The Cognitive Neurosciences. MIT Press. ISSN 0262043254.
Baranski, E; Sweeny, K; Gardiner, G; Leknes, Siri; Waldal Holen, Vera & Hansen, Ingelin [Show all 9 contributors for this article] (2020). International Optimism: Correlates and Consequences of Dispositional Optimism across 61 Countries. Journal of Personality. ISSN 0022-3506. 89, p. 288–304. doi: 10.1111/jopy.12582.
Lee, Daniel I.; Gardiner, Gwendolyn; Baranski, Erica; Leknes, Siri; Waldal Holen, Vera & Hansen, Ingelin [Show all 9 contributors for this article] (2020). Situational experiences around the world: A replication and extension in 62 countries. Journal of Personality. ISSN 0022-3506. 88(6), p. 1091–1110. doi: 10.1111/jopy.12558.
Norbom, Linn Christin Bonaventure; Rokicki, Jaroslav; van der Meer, Dennis; Alnæs, Dag; Doan, Nhat Trung & Moberget, Torgeir [Show all 10 contributors for this article] (2020). Testing relationships between multimodal modes of brain structural variation and age, sex and polygenic scores for neuroticism in children and adolescents. Translational Psychiatry. ISSN 2158-3188. 10(251). doi: 10.1038/s41398-020-00931-1. Full text in Research Archive
Norbom, Linn Christin Bonaventure; Rokicki, Jaroslav; Alnæs, Dag; Kaufmann, Tobias; Doan, Nhat Trung & Andreassen, Ole Andreas [Show all 8 contributors for this article] (2020). Maturation of cortical microstructure and cognitive development in childhood and adolescence: A T1w/T2w ratio MRI study. Human Brain Mapping. ISSN 1065-9471. 41(16), p. 4676–4690. doi: 10.1002/hbm.25149. Full text in Research Archive
Hilland, Eva; Landrø, Nils Inge; Kraft, Brage; Tamnes, Christian Krog; Fried, Eiko I. & Maglanoc, Luigi Angelo [Show all 7 contributors for this article] (2020). Exploring the Links between Specific Depression Symptoms and Brain Structure: A Network Study. Psychiatry and Clinical Neurosciences. ISSN 1323-1316. 74, p. 220–221. doi: 10.1111/pcn.12969. Full text in Research Archive Show summary
Understanding the neural substrates of specific symptoms may provide important information about mechanisms underlying depression vulnerability. A growing body of research under the umbrella term ‘network approach’ has recently received considerable attention[5]; the approach understands and aims to model mental disorders as systems of causally interacting symptoms. So far, network studies have been based on symptoms and environmental factors, ignoring relevant neurobiological factors[6]. Here, we address this knowledge gap by modelling a joint network of depression-related brain structures and individual depression symptoms, using 21 symptoms and five regional brain measures. The sample is a mixed group of individuals that previously have been treated for one or more major depressive episodes (MDE) and never depressed individuals, with the goal to model a continuum of depression severity. Hippocampus was negatively associated with changes in appetite and sadness, and positively associated with loss of interest and irritability. Insula was negatively associated with loss of interest in sex and sadness. Cingulate had a negative association with sadness, and positive associations with crying and worthlessness. Fusiform gyrus had positive associations with crying and irritability.
Hoekzema, Elseline; Tamnes, Christian Krog; Berns, Puck; Barba-Muller, Erika; Pozzobon, Cristina & Picado, Marisol [Show all 13 contributors for this article] (2019). Becoming a mother entails anatomical changes in the ventral striatum of the human brain that facilitate its responsiveness to offspring cues. Psychoneuroendocrinology. ISSN 0306-4530. 112(104507). doi: 10.1016/j.psyneuen.2019.104507. Full text in Research Archive
Ferschmann, Lia; Vijayakumar, Nandita; Grydeland, Håkon; Øverbye, Knut; Sederevicius, Donatas & Due-Tønnessen, Paulina [Show all 10 contributors for this article] (2019). Prosocial behavior relates to the rate and timing of cortical thinning from adolescence to young adulthood. Developmental Cognitive Neuroscience. ISSN 1878-9293. 40:100734, p. 1–8. doi: 10.1016/j.dcn.2019.100734. Full text in Research Archive
van der Meer, Dennis; Sønderby, Ida Elken; Kaufmann, Tobias; Walters, G. Bragi; Abdellaoui, Abdel & Ames, David [Show all 132 contributors for this article] (2019). Association of copy number variation of the 15q11.2 BP1-BP2 region with cortical and subcortical morphology and cognition. JAMA psychiatry. ISSN 2168-6238. doi: 10.1001/jamapsychiatry.2019.3779. Show summary
IMPORTANCE: Recurrent microdeletions and duplications in the genomic region 15q11.2 between breakpoints 1 (BP1) and 2 (BP2) are associated with neurodevelopmental disorders. These structural variants are present in 0.5% to 1.0% of the population, making 15q11.2 BP1-BP2 the site of the most prevalent known pathogenic copy number variation (CNV). It is unknown to what extent this CNV influences brain structure and affects cognitive abilities. OBJECTIVE: To determine the association of the 15q11.2 BP1-BP2 deletion and duplication CNVs with cortical and subcortical brain morphology and cognitive task performance. DESIGN, SETTING, AND PARTICIPANTS: In this genetic association study, T1-weighted brain magnetic resonance imaging were combined with genetic data from the ENIGMA-CNV consortium and the UK Biobank, with a replication cohort from Iceland. In total, 203 deletion carriers, 45 247 noncarriers, and 306 duplication carriers were included. Data were collected from August 2015 to April 2019, and data were analyzed from September 2018 to September 2019. MAIN OUTCOMES AND MEASURES: The associations of the CNV with global and regional measures of surface area and cortical thickness as well as subcortical volumes were investigated, correcting for age, age2 , sex, scanner, and intracranial volume. Additionally, measures of cognitive ability were analyzed in the full UK Biobank cohort. RESULTS: Of 45 756 included individuals, the mean (SD) age was 55.8 (18.3) years, and 23 754 (51.9%) were female. Compared with noncarriers, deletion carriers had a lower surface area (Cohen d = −0.41; SE, 0.08; P = 4.9 × 10−8), thicker cortex (Cohen d = 0.36; SE, 0.07; P = 1.3 × 10−7), and a smaller nucleus accumbens (Cohen d = −0.27; SE, 0.07; P = 7.3 × 10−5). There was also a significant negative dose response on cortical thickness (β = −0.24; SE, 0.05; P = 6.8 × 10−7). Regional cortical analyses showed a localization of the effects to the frontal, cingulate, and parietal lobes. Further, cognitive ability was lower for deletion carriers compared with noncarriers on 5 of 7 tasks. CONCLUSIONS AND RELEVANCE: These findings, from the largest CNV neuroimaging study to date, provide evidence that 15q11.2 BP1-BP2 structural variation is associated with brain morphology and cognition, with deletion carriers being particularly affected. The pattern of results fits with known molecular functions of genes in the 15q11.2 BP1-BP2 region and suggests involvement of these genes in neuronal plasticity. These neurobiological effects likely contribute to the association of this CNV with neurodevelopmental disorders
Smith, Steve; Duff, Eugene; Groves, Adrian; Nichols, Thomas E.; Jbabdi, Saad & Westlye, Lars Tjelta [Show all 12 contributors for this article] (2019). Structural variability in the human brain reflects fine-grained functional architecture at the population level. Journal of Neuroscience. ISSN 0270-6474. 39(31), p. 6136–6149. doi: 10.1523/JNEUROSCI.2912-18.2019. Full text in Research Archive
Øverbye, Knut; Walhovd, Kristine B; Paus, Tomáš; Fjell, Anders Martin; Huster, Rene & Tamnes, Christian Krog (2019). Error processing in the adolescent brain: Age-related differences in electrophysiology, behavioral adaptation, and brain morphology. Developmental Cognitive Neuroscience. ISSN 1878-9293. 38. doi: 10.1016/j.dcn.2019.100665. Full text in Research Archive
Grydeland, Håkon; Vértes, Petra; Váša, František; Romero-Garcia, Rafael; Whitaker, Kirstie & Aaron F., Alexander-Bloch [Show all 15 contributors for this article] (2019). Waves of Maturation and Senescence in Microstructural MRI Markers of Human Cortical Myelination over the Lifespan. Cerebral Cortex. ISSN 1047-3211. 29(3), p. 1369–1381. doi: 10.1093/cercor/bhy330. Full text in Research Archive
Fjell, Anders Martin; Chen, Chi-Hua Chen; Sederevicius, Donatas; Sneve, Markus Handal; Grydeland, Håkon & Krogsrud, Stine Kleppe [Show all 17 contributors for this article] (2019). Continuity and discontinuity in human cortical development and change from embryonic stages to old age. Cerebral Cortex. ISSN 1047-3211. 29(9), p. 3879–3890. doi: 10.1093/cercor/bhy266. Full text in Research Archive
Tamnes, Christian Krog & Østby, Ylva (2018). Morphometry and development: Changes in brain structure from birth to adult age. In Spalletta, Gianfranco; Piras, Fabrizio & Gili, Tommaso (Ed.), Brain Morphometry. Springer. ISSN 978-1-4939-7647-8. p. 143–164. doi: 10.31234/osf.io/jcfz7. Full text in Research Archive
Moshontz, Hannah; Campbell, Lorne; Ebersole, Charles R.; IJzerman, Hans; Urry, Heather L. & Forscher, Patrick S. [Show all 97 contributors for this article] (2018). The Psychological Science Accelerator: Advancing Psychology Through a Distributed Collaborative Network. Advances in Methods and Practices in Psychological Science (AMPPS). ISSN 2515-2459. 1(4), p. 501–515. doi: 10.1177/2515245918797607. Full text in Research Archive
Norbom, Linn Christin Bonaventure; Doan, Nhat Trung; Alnæs, Dag; Kaufmann, Tobias; Moberget, Torgeir & Rokicki, Jaroslav [Show all 9 contributors for this article] (2018). Probing brain developmental patterns of myelination and associations with psychopathology in youths using gray/white matter contrast. Biological Psychiatry. ISSN 0006-3223. doi: 10.1016/j.biopsych.2018.09.027. Full text in Research Archive
Herting, Megan M.; Johnson, Cory; Mills, Kathryn L.; Vijayakumar, Nandita; Dennison, Meg & Liu, Chang [Show all 12 contributors for this article] (2018). Development of subcortical volumes across adolescence in males and females: A multisample study of longitudinal changes. NeuroImage. ISSN 1053-8119. 172, p. 194–205. doi: 10.1016/j.neuroimage.2018.01.020.
Bos, Marieke G.N.; Peters, Sabine; van de Kamp, Ferdi C.; Crone, Eveline A. & Tamnes, Christian Krog (2018). Emerging depression in adolescence coincides with accelerated frontal cortical thinning. Journal of Child Psychology and Psychiatry. ISSN 0021-9630. 59(9), p. 994–1002. doi: 10.1111/jcpp.12895. Full text in Research Archive
Tamnes, Christian Krog; Øverbye, Knut; Ferschmann, Lia; Fjell, Anders Martin; Walhovd, Kristine B & Blakemore, Sarah-Jayne [Show all 7 contributors for this article] (2018). Social perspective taking is associated with self-reported prosocial behavior and regional cortical thickness across adolescence. Developmental Psychology. ISSN 0012-1649. 54(9), p. 1745–1757. doi: 10.1037/dev0000541. Full text in Research Archive
Tamnes, Christian Krog; Roalf, David R.; Goddings, Anne-Lise & Lebel, C (2018). Diffusion MRI of white matter microstructure development in childhood and adolescence: Methods, challenges and progress. Developmental Cognitive Neuroscience. ISSN 1878-9293. 33, p. 161–175. doi: 10.1016/j.dcn.2017.12.002. Full text in Research Archive
Wierenga, Lara M.; Sexton, Joseph; Laake, Petter; Giedd, Jay N. & Tamnes, Christian Krog (2018). A Key Characteristic of Sex Differences in the Developing Brain: Greater Variability in Brain Structure of Boys than Girls . Cerebral Cortex. ISSN 1047-3211. 28(8), p. 2741–2751. doi: 10.1093/cercor/bhx154. Full text in Research Archive
Øverbye, Knut; Huster, Rene; Walhovd, Kristine B; Fjell, Anders Martin & Tamnes, Christian Krog (2018). Development of the P300 from childhood to adulthood: a multimodal EEG and MRI study. Brain Structure and Function. ISSN 1863-2653. 223, p. 4337–4349. doi: 10.1007/s00429-018-1755-5.
Bos, Marieke G.N.; Wierenga, Lara M.; Blankenstein, Neeltje E.; Schreuders, Elisabeth; Tamnes, Christian Krog & Crone, Eveline A. (2018). Longitudinal structural brain development and externalizing behavior in adolescence. Journal of Child Psychology and Psychiatry. ISSN 0021-9630. 59(10), p. 1061–1072. doi: 10.1111/jcpp.12972. Full text in Research Archive
Haukvik, Unn Kristin H.; Tamnes, Christian Krog; Söderman, Erik & Agartz, Ingrid (2018). Neuroimaging hippocampal subfields in schizophrenia and bipolar disorder: A systematic review and meta-analysis. Journal of Psychiatric Research. ISSN 0022-3956. 104, p. 217–226. doi: 10.1016/j.jpsychires.2018.08.012. Full text in Research Archive
Krogsrud, Stine Kleppe; Fjell, Anders Martin; Tamnes, Christian Krog; Grydeland, Håkon; Due-Tønnessen, Paulina & Bjørnerud, Atle [Show all 10 contributors for this article] (2018). Development of white matter microstructure in relation to verbal and visuospatial working memory - A longitudinal study. PLOS ONE. ISSN 1932-6203. 13:e0195540(4), p. 1–22. doi: 10.1371/journal.pone.0195540. Full text in Research Archive
Wierenga, Lara M.; Bos, Marieke G.N.; Schreuders, Elisabeth; vd Kamp, Ferdi; Peper, Jiska S. & Tamnes, Christian Krog [Show all 7 contributors for this article] (2018). Unraveling age, puberty and testosterone effects on subcortical brain development across adolescence. Psychoneuroendocrinology. ISSN 0306-4530. 91, p. 105–114. doi: 10.1016/j.psyneuen.2018.02.034. Full text in Research Archive
Tamnes, Christian Krog; Bos, Marieke G.N.; van de Kamp, Ferdi C.; Peters, Sabine & Crone, Eveline A. (2018). Longitudinal development of hippocampal subregions from childhood to adulthood. Developmental Cognitive Neuroscience. ISSN 1878-9293. 30, p. 212–222. doi: 10.1016/j.dcn.2018.03.009. Full text in Research Archive
Ferschmann, Lia; Fjell, Anders Martin; Vollrath, Margarete E.; Grydeland, Håkon; Walhovd, Kristine B & Tamnes, Christian Krog (2018). Personality Traits Are Associated With Cortical Development Across Adolescence: A Longitudinal Structural MRI Study. Child Development. ISSN 0009-3920. 89(3), p. 811–822. doi: 10.1111/cdev.13016. Full text in Research Archive

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Tamnes, Christian Krog (2021). Nevrokognitiv utviklingspsykologi. Gyldendal Akademisk. ISBN 9788205533387. 320 p.

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Tamnes, Christian Krog (2023). Barns hjerner kan endres av skjermbruk, ifølge ny samlestudie. [Internet]. Forskning.no.
Tamnes, Christian Krog (2023). Hjernen forandret seg da alkoholavhengige sluttet å drikke. [Internet]. Forskning.no.
Tamnes, Christian Krog (2023). Eksperter: Derfor skal du være raus med tenåringen din. [Newspaper]. VG.
Richie-Halford, Adam; Cieslak, Matthew; Ai, Lei; Caffarra, Sendy; Covitz, Sydney & Franco, Alexandre R. [Show all 121 contributors for this article] (2023). Author Correction: An analysis-ready and quality controlled resource for pediatric brain white-matter research (Scientific Data, (2022), 9, 1, (616), 10.1038/s41597-022-01695-7). Scientific Data. ISSN 2052-4463. 10(1). doi: 10.1038/s41597-023-02137-8.
Norbom, Linn Christin Bonaventure; Hanson, Jamie; van der Meer, Dennis; Ferschmann, Lia; Røysamb, Espen & von Soest, Tilmann [Show all 10 contributors for this article] (2023). Erratum to “Parental socioeconomic status is linked to cortical microstructure and language abilities in children and adolescents” [Dev. Cogn. Neurosci. 56C (2022) 101132] (Developmental Cognitive Neuroscience (2022) 56, (S1878929322000755), (10.1016/j.dcn.2022.101132)). Developmental Cognitive Neuroscience. ISSN 1878-9293. 61. doi: 10.1016/j.dcn.2023.101225.
Tamnes, Christian Krog (2023). Mensen-mysteriet. [Newspaper]. Dagens Næringsliv D2.
Tamnes, Christian Krog (2023). Nei, du har ikke en reptilhjerne inni hjernen din. [Internet]. Forskning.no.
Wang, Ke; Goldenberg, Amit; Dorison, Charles A.; Miller, Jeremy K.; Uusberg, Andero & Lerner, Jennifer S. [Show all 460 contributors for this article] (2022). Erratum: Author Correction: A multi-country test of brief reappraisal interventions on emotions during the COVID-19 pandemic (Nature human behaviour (2021) 5 8 (1089-1110)). Nature Human Behaviour. ISSN 2397-3374. 6(9), p. 1318–1319. doi: 10.1038/s41562-022-01441-4.
Tamnes, Christian Krog (2021). Nøkkelen til menneskets suksess som art - Tenåringer har meir å by på enn kviser og smelling med dører! [Journal]. Fri Tanke.
Tamnes, Christian Krog (2021). Ungdomshjernen er ikke utviklet nok til å ta store valg. [Internet]. nrk.no.
Tamnes, Christian Krog (2020). Hva vet vi om ungdomshjernen? [Business/trade/industry journal]. Paidos.
Tamnes, Christian Krog (2020). Tragedien på spor 3. [Newspaper]. A-magasinet.
Mills, Kathryn L. & Tamnes, Christian Krog (2020). Longitudinal structural and functional brain development in childhood and adolescence. In Kadosh, Kathrin Cohen (Eds.), The Oxford Handbook of Developmental Cognitive Neuroscience. Oxford University Press. ISSN 9780198827474. doi: 10.1093/oxfordhb/9780198827474.013.4.
Tamnes, Christian Krog (2020). Tiktok aldri nok. [Newspaper]. A-magasinet.
Tamnes, Christian Krog (2020). Gir hjerneforskning svaret på hvorfor jenter er flinkere på skolen enn gutter? [Internet]. Forskning.no.

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Published Apr. 18, 2011 2:42 PM - Last modified Oct. 17, 2023 11:21 AM

Christian Krog Tamnes

Academic Interests

Higher education and employment history

Publications

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Research groups

Christian Krog Tamnes

Academic Interests

Higher education and employment history

Publications

Projects

Completed projects

Research groups