Torbjørn Elvsåshagen

  • Group leader and postdoctoral researcher; MD, PhD
 

Original articles

Voldsbekk I, Maximov II, Zak N, Roelfs D, Geier O, Due-Tønnessen P, Elvsåshagen T, Strømstad M, Bjørnerud A, Groote I (2020)
Evidence for wakefulness-related changes to extracellular space in human brain white matter from diffusion-weighted MRI
Neuroimage, 212, 116682 (in press)
DOI 10.1016/j.neuroimage.2020.116682, PubMed 32114147

Kaufmann T, van der Meer D, Doan NT, Schwarz E, Lund MJ, Agartz I, Alnæs D, Barch DM, Baur-Streubel R, Bertolino A, Bettella F, Beyer MK, Bøen E, Borgwardt S, Brandt CL, Buitelaar J, Celius EG, Cervenka S, Conzelmann A, Córdova-Palomera A, Dale AM, de Quervain DJF, Di Carlo P, Djurovic S, Dørum ES et al. (2019)
Common brain disorders are associated with heritable patterns of apparent aging of the brain
Nat Neurosci, 22 (10), 1617-1623
DOI 10.1038/s41593-019-0471-7, PubMed 31551603

Granerud-Dunvoll G, Arntzen E, Elvsashagen T, Hatlestad-Hall C, Malt E (2019)
Equivalence Class Formation and the N400: Methodological Issues
Psychol. Rec., 69 (2), 175-191

Stahl EA, Breen G, Forstner AJ, McQuillin A, Ripke S, Trubetskoy V, Mattheisen M, Wang Y, Coleman JRI, Gaspar HA, de Leeuw CA, Steinberg S, Pavlides JMW, Trzaskowski M, Byrne EM, Pers TH, Holmans PA, Richards AL, Abbott L, Agerbo E, Akil H, Albani D, Alliey-Rodriguez N, Als TD, Anjorin A et al. (2019)
Genome-wide association study identifies 30 loci associated with bipolar disorder
Nat Genet, 51 (5), 793-803
DOI 10.1038/s41588-019-0397-8, PubMed 31043756

Zak N, Bøen E, Boye B, Andreassen OA, Doan NT, Malt UF, Westlye LT, Elvsåshagen T (2019)
Mood episodes are associated with increased cortical thinning: A longitudinal study of bipolar disorder type II
Bipolar Disord, 21 (6), 525-538
DOI 10.1111/bdi.12771, PubMed 30864260

Aas M, Elvsåshagen T, Westlye LT, Kaufmann T, Athanasiu L, Djurovic S, Melle I, van der Meer D, Martin-Ruiz C, Steen NE, Agartz I, Andreassen OA (2019)
Telomere length is associated with childhood trauma in patients with severe mental disorders
Transl Psychiatry, 9 (1), 97
DOI 10.1038/s41398-019-0432-7, PubMed 30898995

Rødevand L, Steen NE, Elvsåshagen T, Quintana DS, Reponen EJ, Mørch RH, Lunding SH, Vedal TSJ, Dieset I, Melle I, Lagerberg TV, Andreassen OA (2019)
Cardiovascular risk remains high in schizophrenia with modest improvements in bipolar disorder during past decade
Acta Psychiatr Scand, 139 (4), 348-360
DOI 10.1111/acps.13008, PubMed 30697685

Mäki-Marttunen T, Krull F, Bettella F, Hagen E, Næss S, Ness TV, Moberget T, Elvsåshagen T, Metzner C, Devor A, Edwards AG, Fyhn M, Djurovic S, Dale AM, Andreassen OA, Einevoll GT (2019)
Alterations in Schizophrenia-Associated Genes Can Lead to Increased Power in Delta Oscillations
Cereb Cortex, 29 (2), 875-891
DOI 10.1093/cercor/bhy291, PubMed 30475994

Bøen E, Hjørnevik T, Hummelen B, Elvsåshagen T, Moberget T, Holtedahl JE, Babovic A, Hol PK, Karterud S, Malt UF (2019)
Patterns of altered regional brain glucose metabolism in borderline personality disorder and bipolar II disorder
Acta Psychiatr Scand, 139 (3), 256-268
DOI 10.1111/acps.12997, PubMed 30552759

Elvsåshagen T, Mutsaerts HJ, Zak N, Norbom LB, Quraishi SH, Pedersen PØ, Malt UF, Westlye LT, van Someren EJ, Bjørnerud A, Groote IR (2018)
Cerebral blood flow changes after a day of wake, sleep, and sleep deprivation
Neuroimage, 186, 497-509
DOI 10.1016/j.neuroimage.2018.11.032, PubMed 30471387

Nunes A, Schnack HG, Ching CRK, Agartz I, Akudjedu TN, Alda M, Alnæs D, Alonso-Lana S, Bauer J, Baune BT, Bøen E, Bonnin CDM, Busatto GF, Canales-Rodríguez EJ, Cannon DM, Caseras X, Chaim-Avancini TM, Dannlowski U, Díaz-Zuluaga AM, Dietsche B, Doan NT, Duchesnay E, Elvsåshagen T, Emden D, Eyler LT et al. (2018)
Using structural MRI to identify bipolar disorders - 13 site machine learning study in 3020 individuals from the ENIGMA Bipolar Disorders Working Group
Mol Psychiatry (in press)
DOI 10.1038/s41380-018-0228-9, PubMed 30171211

Zak N, Moberget T, Bøen E, Boye B, Waage TR, Dietrichs E, Harkestad N, Malt UF, Westlye LT, Andreassen OA, Andersson S, Elvsåshagen T (2018)
Longitudinal and cross-sectional investigations of long-term potentiation-like cortical plasticity in bipolar disorder type II and healthy individuals
Transl Psychiatry, 8 (1), 103
DOI 10.1038/s41398-018-0151-5, PubMed 29795193

Quintana DS, Westlye LT, Hope S, Nærland T, Elvsåshagen T, Dørum E, Rustan Ø, Valstad M, Rezvaya L, Lishaugen H, Stensønes E, Yaqub S, Smerud KT, Mahmoud RA, Djupesland PG, Andreassen OA (2017)
Dose-dependent social-cognitive effects of intranasal oxytocin delivered with novel Breath Powered device in adults with autism spectrum disorder: a randomized placebo-controlled double-blind crossover trial
Transl Psychiatry, 7 (5), e1136
DOI 10.1038/tp.2017.103, PubMed 28534875

Elvsåshagen T, Zak N, Norbom LB, Pedersen PØ, Quraishi SH, Bjørnerud A, Alnæs D, Doan NT, Malt UF, Groote IR, Westlye LT (2017)
Evidence for cortical structural plasticity in humans after a day of waking and sleep deprivation
Neuroimage, 156, 214-223
DOI 10.1016/j.neuroimage.2017.05.027, PubMed 28526620

Hibar DP, Westlye LT, Doan NT, Jahanshad N, Cheung JW, Ching CRK, Versace A, Bilderbeck AC, Uhlmann A, Mwangi B, Krämer B, Overs B, Hartberg CB, Abé C, Dima D, Grotegerd D, Sprooten E, Bøen E, Jimenez E, Howells FM, Delvecchio G, Temmingh H, Starke J, Almeida JRC, Goikolea JM et al. (2017)
Cortical abnormalities in bipolar disorder: an MRI analysis of 6503 individuals from the ENIGMA Bipolar Disorder Working Group
Mol Psychiatry, 23 (4), 932-942
DOI 10.1038/mp.2017.73, PubMed 28461699

Quintana DS, Elvsåshagen T, Zak N, Norbom LB, Pedersen PØ, Quraishi SH, Bjørnerud A, Malt UF, Groote IR, Kaufmann T, Andreassen OA, Westlye LT (2017)
Diurnal Variation and Twenty-Four Hour Sleep Deprivation Do Not Alter Supine Heart Rate Variability in Healthy Male Young Adults
PLoS One, 12 (2), e0170921
DOI 10.1371/journal.pone.0170921, PubMed 28151944

Elvsåshagen T, Zuzarte P, Westlye LT, Bøen E, Josefsen D, Boye B, Hol PK, Malt UF, Young LT, Andreazza AC (2016)
Dentate gyrus-cornu ammonis (CA) 4 volume is decreased and associated with depressive episodes and lipid peroxidation in bipolar II disorder: Longitudinal and cross-sectional analyses
Bipolar Disord, 18 (8), 657-668
DOI 10.1111/bdi.12457, PubMed 27995733

Hibar DP, Westlye LT, van Erp TG, Rasmussen J, Leonardo CD, Faskowitz J, Haukvik UK, Hartberg CB, Doan NT, Agartz I, Dale AM, Gruber O, Krämer B, Trost S, Liberg B, Abé C, Ekman CJ, Ingvar M, Landén M, Fears SC, Freimer NB, Bearden CE, Costa Rica/Colombia Consortium for Genetic Investigation of Bipolar Endophenotypes, Sprooten E, Glahn DC et al. (2016)
Subcortical volumetric abnormalities in bipolar disorder
Mol Psychiatry, 21 (12), 1710-1716
DOI 10.1038/mp.2015.227, PubMed 26857596

Kaufmann T, Elvsåshagen T, Alnæs D, Zak N, Pedersen PØ, Norbom LB, Quraishi SH, Tagliazucchi E, Laufs H, Bjørnerud A, Malt UF, Andreassen OA, Roussos E, Duff EP, Smith SM, Groote IR, Westlye LT (2015)
The brain functional connectome is robustly altered by lack of sleep
Neuroimage, 127, 324-332
DOI 10.1016/j.neuroimage.2015.12.028, PubMed 26712339

Elvsåshagen T, Norbom LB, Pedersen PØ, Quraishi SH, Bjørnerud A, Malt UF, Groote IR, Westlye LT (2015)
Widespread changes in white matter microstructure after a day of waking and sleep deprivation
PLoS One, 10 (5), e0127351
DOI 10.1371/journal.pone.0127351, PubMed 26020651

Bøen E, Hummelen B, Elvsåshagen T, Boye B, Andersson S, Karterud S, Malt UF (2014)
Different impulsivity profiles in borderline personality disorder and bipolar II disorder
J Affect Disord, 170, 104-11
DOI 10.1016/j.jad.2014.08.033, PubMed 25237733

Thompson PM, Stein JL, Medland SE, Hibar DP, Vasquez AA, Renteria ME, Toro R, Jahanshad N, Schumann G, Franke B, Wright MJ, Martin NG, Agartz I, Alda M, Alhusaini S, Almasy L, Almeida J, Alpert K, Andreasen NC, Andreassen OA, Apostolova LG, Appel K, Armstrong NJ, Aribisala B, Bastin ME et al. (2014)
The ENIGMA Consortium: large-scale collaborative analyses of neuroimaging and genetic data
Brain Imaging Behav, 8 (2), 153-82
DOI 10.1007/s11682-013-9269-5, PubMed 24399358

Bøen E, Westlye LT, Elvsåshagen T, Hummelen B, Hol PK, Boye B, Andersson S, Karterud S, Malt UF (2014)
Smaller stress-sensitive hippocampal subfields in women with borderline personality disorder without posttraumatic stress disorder
J Psychiatry Neurosci, 39 (2), 127-34
DOI 10.1503/jpn.130070, PubMed 24309162

Elvsåshagen T, Moberget T, Bøen E, Hol PK, Malt UF, Andersson S, Westlye LT (2014)
The surface area of early visual cortex predicts the amplitude of the visual evoked potential
Brain Struct Funct, 220 (2), 1229-36
DOI 10.1007/s00429-013-0703-7, PubMed 24415060

Bøen E, Westlye LT, Elvsåshagen T, Hummelen B, Hol PK, Boye B, Andersson S, Karterud S, Malt UF (2013)
Regional cortical thinning may be a biological marker for borderline personality disorder
Acta Psychiatr Scand, 130 (3), 193-204
DOI 10.1111/acps.12234, PubMed 24571788

Elvsåshagen T, Westlye LT, Bøen E, Hol PK, Andreassen OA, Boye B, Malt UF (2013)
Bipolar II disorder is associated with thinning of prefrontal and temporal cortices involved in affect regulation
Bipolar Disord, 15 (8), 855-64
DOI 10.1111/bdi.12117, PubMed 23980618

Elvsåshagen T, Westlye LT, Bøen E, Hol PK, Andersson S, Andreassen OA, Boye B, Malt UF (2013)
Evidence for reduced dentate gyrus and fimbria volume in bipolar II disorder
Bipolar Disord, 15 (2), 167-76
DOI 10.1111/bdi.12046, PubMed 23317454

Elvsåshagen T, Moberget T, Bøen E, Boye B, Englin NO, Pedersen PØ, Andreassen OA, Dietrichs E, Malt UF, Andersson S (2011)
Evidence for impaired neocortical synaptic plasticity in bipolar II disorder
Biol Psychiatry, 71 (1), 68-74
DOI 10.1016/j.biopsych.2011.09.026, PubMed 22036034

Elvsåshagen T, Vera E, Bøen E, Bratlie J, Andreassen OA, Josefsen D, Malt UF, Blasco MA, Boye B (2011)
The load of short telomeres is increased and associated with lifetime number of depressive episodes in bipolar II disorder
J Affect Disord, 135 (1-3), 43-50
DOI 10.1016/j.jad.2011.08.006, PubMed 21880373

Lossius A, Elvsåshagen T, Taubøll E (2008)
[A 58-year-old woman with stroke, elevated troponin and hypercoagulability]
Tidsskr Nor Laegeforen, 128 (6), 706-8
PubMed 18365333

Review articles

Mäki-Marttunen T, Kaufmann T, Elvsåshagen T, Devor A, Djurovic S, Westlye LT, Linne ML, Rietschel M, Schubert D, Borgwardt S, Efrim-Budisteanu M, Bettella F, Halnes G, Hagen E, Næss S, Ness TV, Moberget T, Metzner C, Edwards AG, Fyhn M, Dale AM, Einevoll GT, Andreassen OA (2019)
Biophysical Psychiatry-How Computational Neuroscience Can Help to Understand the Complex Mechanisms of Mental Disorders
Front Psychiatry, 10, 534
DOI 10.3389/fpsyt.2019.00534, PubMed 31440172

Quintana DS, Dieset I, Elvsåshagen T, Westlye LT, Andreassen OA (2017)
Oxytocin system dysfunction as a common mechanism underlying metabolic syndrome and psychiatric symptoms in schizophrenia and bipolar disorders
Front Neuroendocrinol, 45, 1-10
DOI 10.1016/j.yfrne.2016.12.004, PubMed 28049009

Elvsåshagen T, Solyga V, Bakke SJ, Heiberg A, Kerty E (2009)
[Neurofibromatosis type 2 and auditory brainstem implantation]
Tidsskr Nor Laegeforen, 129 (15), 1469-73
DOI 10.4045/tidsskr.08.0151, PubMed 19690597

Elvsåshagen T, Malt UF (2008)
[Structural plasticity in the adult central nervous system]
Tidsskr Nor Laegeforen, 128 (3), 298-302
PubMed 18264154

Other articles

Kaufmann T, van der Meer D, Doan NT, Schwarz E, Lund MJ, Agartz I, Alnæs D, Barch DM, Baur-Streubel R, Bertolino A, Bettella F, Beyer MK, Bøen E, Borgwardt S, Brandt CL, Buitelaar J, Celius EG, Cervenka S, Conzelmann A, Córdova-Palomera A, Dale AM, de Quervain DJF, Di Carlo P, Djurovic S, Dørum ES et al. (2020)
Publisher Correction: Common brain disorders are associated with heritable patterns of apparent aging of the brain
Nat Neurosci, 23 (2), 295
DOI 10.1038/s41593-019-0553-6, PubMed 31848485

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