
Tiril Pedersen Gurholt
- Researcher; PhD
Academic interests
I am a researcher at the Section for Precision Psychiatry at the Oslo University Hospital. I have extensive experience from psychiatric neuroimaging research, including structural and diffusion tensor magnetic resonance imaging (MRI), large-scale analyses, international research collaboration in the ENIGMA-consortium, and body-brain relationships in severe mental disorders and the general population.
My current research focus is on identifying the underlying mechanisms of observed comorbid links between bodily and mental disorders. Identification of these comorbid, likely reciprocal, mechanisms is important to improve patient care and develop safe and efficient personalized prevention and treatment approaches, and to improve outcomes, in conditions affecting both the body and the brain. To further our understanding of mental disorders and comorbidities, I use large-scale epidemiological population and clinical cohorts, and various phenotypes and techniques, including body and brain MRI, programming, numerical, regression, clustering, mediation, and artificial intelligence approaches. I work on clinical translation together with clinicians to make research findings clinically useful.
Students interested in pursuing a master or PhD within any of these areas of research are encouraged to contact me.
I am a member of the Multimodal Imaging and Psychiatric Epidemiology Research Groups. I am a member of the Editorial Board of the Springer Nature Discover Mental Health Journal.
Higher education
- 2013: PhD in Applied Mathematics, University of Bergen
- 2006: Master in Informatics, University of Oslo
Scientific output & other websites
Publications 2025
Mediation Analyses Link Cardiometabolic Factors and Liver Fat With White Matter Hyperintensities and Cognitive Performance: A UK Biobank Study
Biol Psychiatry Glob Open Sci, 5 (4), 100488
DOI 10.1016/j.bpsgos.2025.100488, PubMed 40330223
Publications 2024
Poor muscle health and cardiometabolic risks associated with antidepressant treatment
Obesity (Silver Spring), 32 (10), 1857-1869
DOI 10.1002/oby.24085, PubMed 39315407
Dissecting unique and common variance across body and brain health indicators using age prediction
Hum Brain Mapp, 45 (6), e26685
DOI 10.1002/hbm.26685, PubMed 38647042
Hypothalamic subunit volumes and relations to violence and psychopathy in male offenders with or without a psychotic disorder
Eur Arch Psychiatry Clin Neurosci (in press)
DOI 10.1007/s00406-023-01725-4, PubMed 38353675
Depression, anxiety and brain volume after hearing loss and tinnitus: cohort study in the UK Biobank
BJPsych Open, 10 (2), e37
DOI 10.1192/bjo.2023.634, PubMed 38297917
Peripheral vertigo and subsequent risk of depression and anxiety disorders: a prospective cohort study using the UK Biobank
BMC Med, 22 (1), 63
DOI 10.1186/s12916-023-03179-w, PubMed 38336700
Linking sarcopenia, brain structure and cognitive performance: a large-scale UK Biobank study
Brain Commun, 6 (2), fcae083
DOI 10.1093/braincomms/fcae083, PubMed 38510210
Large-scale brainstem neuroimaging and genetic analyses provide new insights into the neuronal mechanisms of hypertension
HGG Adv, 6 (1), 100392
DOI 10.1016/j.xhgg.2024.100392, PubMed 39663699
Publications 2023
Bio-psycho-social factors' associations with brain age: a large-scale UK Biobank diffusion study of 35,749 participants
Front Psychol, 14, 1117732
DOI 10.3389/fpsyg.2023.1117732, PubMed 37359862
Cardiometabolic health across menopausal years is linked to white matter hyperintensities up to a decade later
Front Glob Womens Health, 4, 1320640
DOI 10.3389/fgwh.2023.1320640, PubMed 38213741
Publications 2022
In vivo white matter microstructure in adolescents with early-onset psychosis: a multi-site mega-analysis
Mol Psychiatry, 28 (3), 1159-1169
DOI 10.1038/s41380-022-01901-3, PubMed 36510004
Adipose tissue distribution from body MRI is associated with cross-sectional and longitudinal brain age in adults
Neuroimage Clin, 33, 102949
DOI 10.1016/j.nicl.2022.102949, PubMed 35114636
Psychopathy subdomains in violent offenders with and without a psychotic disorder
Nord J Psychiatry, 77 (4), 393-402
DOI 10.1080/08039488.2022.2128869, PubMed 36260740
Associations between abdominal adipose tissue, reproductive span, and brain characteristics in post-menopausal women
Neuroimage Clin, 36, 103239
DOI 10.1016/j.nicl.2022.103239, PubMed 36451350
Sex- and age-specific associations between cardiometabolic risk and white matter brain age in the UK Biobank cohort
Hum Brain Mapp, 43 (12), 3759-3774
DOI 10.1002/hbm.25882, PubMed 35460147
The link between liver fat and cardiometabolic diseases is highlighted by genome-wide association study of MRI-derived measures of body composition
Commun Biol, 5 (1), 1271
DOI 10.1038/s42003-022-04237-4, PubMed 36402844
The oxytocin signalling gene pathway contributes to the association between loneliness and cardiometabolic health
Psychoneuroendocrinology, 144, 105875
DOI 10.1016/j.psyneuen.2022.105875, PubMed 35939863
Publications 2021
Associations between amygdala nuclei volumes, psychosis, psychopathy, and violent offending
Psychiatry Res Neuroimaging, 319, 111416
DOI 10.1016/j.pscychresns.2021.111416, PubMed 34847406
Population-based body-brain mapping links brain morphology with anthropometrics and body composition
Transl Psychiatry, 11 (1), 295
DOI 10.1038/s41398-021-01414-7, PubMed 34006848
Publications 2020
Exploring white matter microstructure and the impact of antipsychotics in adolescent-onset psychosis
PLoS One, 15 (5), e0233684
DOI 10.1371/journal.pone.0233684, PubMed 32470000
What we learn about bipolar disorder from large-scale neuroimaging: Findings and future directions from the ENIGMA Bipolar Disorder Working Group
Hum Brain Mapp, 43 (1), 56-82
DOI 10.1002/hbm.25098, PubMed 32725849
The genetic architecture of the human cerebral cortex
Science, 367 (6484)
DOI 10.1126/science.aay6690, PubMed 32193296
Microstructural White Matter and Links With Subcortical Structures in Chronic Schizophrenia: A Free-Water Imaging Approach
Front Psychiatry, 11, 56
DOI 10.3389/fpsyt.2020.00056, PubMed 32180735
Intracranial and subcortical volumes in adolescents with early-onset psychosis: A multisite mega-analysis from the ENIGMA consortium
Hum Brain Mapp, 43 (1), 373-384
DOI 10.1002/hbm.25212, PubMed 33017498
In vivo hippocampal subfield volumes in bipolar disorder-A mega-analysis from The Enhancing Neuro Imaging Genetics through Meta-Analysis Bipolar Disorder Working Group
Hum Brain Mapp, 43 (1), 385-398
DOI 10.1002/hbm.25249, PubMed 33073925
ENIGMA and global neuroscience: A decade of large-scale studies of the brain in health and disease across more than 40 countries
Transl Psychiatry, 10 (1), 100
DOI 10.1038/s41398-020-0705-1, PubMed 32198361
Brain Age Prediction Reveals Aberrant Brain White Matter in Schizophrenia and Bipolar Disorder: A Multisample Diffusion Tensor Imaging Study
Biol Psychiatry Cogn Neurosci Neuroimaging, 5 (12), 1095-1103
DOI 10.1016/j.bpsc.2020.06.014, PubMed 32859549
Greater male than female variability in regional brain structure across the lifespan
Hum Brain Mapp, 43 (1), 470-499
DOI 10.1002/hbm.25204, PubMed 33044802
Publications 2019
Reproducible grey matter patterns index a multivariate, global alteration of brain structure in schizophrenia and bipolar disorder
Transl Psychiatry, 9 (1), 12
DOI 10.1038/s41398-018-0225-4, PubMed 30664633
White matter microstructure in schizophrenia patients with a history of violence
Eur Arch Psychiatry Clin Neurosci, 271 (4), 623-634
DOI 10.1007/s00406-019-00988-0, PubMed 30694361
Publications 2018
Vitamin D levels, brain volume, and genetic architecture in patients with psychosis
PLoS One, 13 (8), e0200250
DOI 10.1371/journal.pone.0200250, PubMed 30142216
Hippocampus volume reduction in psychosis spectrum could be ameliorated by vitamin D
Schizophr Res, 199, 433-435
DOI 10.1016/j.schres.2018.03.011, PubMed 29555212
Vitamin D, Folate and the Intracranial Volume in Schizophrenia and Bipolar Disorder and Healthy Controls
Sci Rep, 8 (1), 10817
DOI 10.1038/s41598-018-29141-y, PubMed 30018414
White matter aberrations and age-related trajectories in patients with schizophrenia and bipolar disorder revealed by diffusion tensor imaging
Sci Rep, 8 (1), 14129
DOI 10.1038/s41598-018-32355-9, PubMed 30237410
Cortical Brain Abnormalities in 4474 Individuals With Schizophrenia and 5098 Control Subjects via the Enhancing Neuro Imaging Genetics Through Meta Analysis (ENIGMA) Consortium
Biol Psychiatry, 84 (9), 644-654
DOI 10.1016/j.biopsych.2018.04.023, PubMed 29960671
Reply to: New Meta- and Mega-analyses of Magnetic Resonance Imaging Findings in Schizophrenia: Do They Really Increase Our Knowledge About the Nature of the Disease Process?
Biol Psychiatry, 85 (7), e35-e39
DOI 10.1016/j.biopsych.2018.10.003, PubMed 30470561
Publications 2017
Widespread white matter microstructural differences in schizophrenia across 4322 individuals: results from the ENIGMA Schizophrenia DTI Working Group
Mol Psychiatry, 23 (5), 1261-1269
DOI 10.1038/mp.2017.170, PubMed 29038599
Vitamin D Deficiency Associated With Cognitive Functioning in Psychotic Disorders
J Clin Psychiatry, 78 (7), e750-e757
DOI 10.4088/JCP.16m10880, PubMed 28493652
Positive symptoms associate with cortical thinning in the superior temporal gyrus via the ENIGMA Schizophrenia consortium
Acta Psychiatr Scand, 135 (5), 439-447
DOI 10.1111/acps.12718, PubMed 28369804
Prefrontal cortical thinning links to negative symptoms in schizophrenia via the ENIGMA consortium
Psychol Med, 48 (1), 82-94
DOI 10.1017/S0033291717001283, PubMed 28545597
Publications 2009
3D Multiphase Piecewise Constant Level Set Method Based on Graph Cut Minimization
Numer. Math.-Theory Methods Appl., 2 (4), 403-420
DOI 10.4208/nmtma.2009.m9003s