Christian K Tamnes

Summary

Affiliation: University of Oslo
Country: Norway

Publications

  1. doi request reprint White Matter Microstructure in Early-Onset Schizophrenia: A Systematic Review of Diffusion Tensor Imaging Studies
    Christian K Tamnes
    Research Group for Lifespan Changes in Brain and Cognition, University of Oslo, Norway Electronic address
    J Am Acad Child Adolesc Psychiatry 55:269-79. 2016
  2. doi request reprint Performance monitoring in children and adolescents: a review of developmental changes in the error-related negativity and brain maturation
    Christian K Tamnes
    Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, Norway Electronic address
    Dev Cogn Neurosci 6:1-13. 2013
  3. doi request reprint Longitudinal working memory development is related to structural maturation of frontal and parietal cortices
    Christian K Tamnes
    Department of Psychology, University of Oslo, Oslo, Norway
    J Cogn Neurosci 25:1611-23. 2013
  4. doi request reprint Brain development and aging: overlapping and unique patterns of change
    Christian K Tamnes
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Neuroimage 68:63-74. 2013
  5. doi request reprint Becoming consistent: developmental reductions in intraindividual variability in reaction time are related to white matter integrity
    Christian K Tamnes
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, 0317 Oslo, Norway
    J Neurosci 32:972-82. 2012
  6. doi request reprint Intellectual abilities and white matter microstructure in development: a diffusion tensor imaging study
    Christian K Tamnes
    Department of Psychology, Center for the Study of Human Cognition, University of Oslo, Oslo, Norway
    Hum Brain Mapp 31:1609-25. 2010
  7. doi request reprint Neuroanatomical correlates of executive functions in children and adolescents: a magnetic resonance imaging (MRI) study of cortical thickness
    Christian K Tamnes
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, and Department of Radiology, Rikshospitalet, Oslo University Hospital, PO Box 1094 Blindern, 0317 Oslo, Norway
    Neuropsychologia 48:2496-508. 2010
  8. doi request reprint The brain dynamics of intellectual development: waxing and waning white and gray matter
    Christian K Tamnes
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Neuropsychologia 49:3605-11. 2011
  9. doi request reprint Differentiating maturational and aging-related changes of the cerebral cortex by use of thickness and signal intensity
    Lars T Westlye
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Neuroimage 52:172-85. 2010
  10. doi request reprint Intracortical myelin links with performance variability across the human lifespan: results from T1- and T2-weighted MRI myelin mapping and diffusion tensor imaging
    Håkon Grydeland
    Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, 0317 Oslo, Norway
    J Neurosci 33:18618-30. 2013

Collaborators

Detail Information

Publications32

  1. doi request reprint White Matter Microstructure in Early-Onset Schizophrenia: A Systematic Review of Diffusion Tensor Imaging Studies
    Christian K Tamnes
    Research Group for Lifespan Changes in Brain and Cognition, University of Oslo, Norway Electronic address
    J Am Acad Child Adolesc Psychiatry 55:269-79. 2016
    ....
  2. doi request reprint Performance monitoring in children and adolescents: a review of developmental changes in the error-related negativity and brain maturation
    Christian K Tamnes
    Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, Norway Electronic address
    Dev Cogn Neurosci 6:1-13. 2013
    ..Overall, we argue that future work should use multimodal approaches to give a better understanding of the neurocognitive development of performance monitoring. ..
  3. doi request reprint Longitudinal working memory development is related to structural maturation of frontal and parietal cortices
    Christian K Tamnes
    Department of Psychology, University of Oslo, Oslo, Norway
    J Cogn Neurosci 25:1611-23. 2013
    ..The results provide the first direct evidence that structural maturation of a fronto-parietal cortical network supports working memory development. ..
  4. doi request reprint Brain development and aging: overlapping and unique patterns of change
    Christian K Tamnes
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Neuroimage 68:63-74. 2013
    ..A key question in future research will be to disentangle the neurobiological underpinnings for the differences and the similarities between brain changes in development and aging...
  5. doi request reprint Becoming consistent: developmental reductions in intraindividual variability in reaction time are related to white matter integrity
    Christian K Tamnes
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, 0317 Oslo, Norway
    J Neurosci 32:972-82. 2012
    ....
  6. doi request reprint Intellectual abilities and white matter microstructure in development: a diffusion tensor imaging study
    Christian K Tamnes
    Department of Psychology, Center for the Study of Human Cognition, University of Oslo, Oslo, Norway
    Hum Brain Mapp 31:1609-25. 2010
    ..Longitudinal data are needed to validate these interpretations. The results provide insight into the neurobiological underpinnings of intellectual development...
  7. doi request reprint Neuroanatomical correlates of executive functions in children and adolescents: a magnetic resonance imaging (MRI) study of cortical thickness
    Christian K Tamnes
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, and Department of Radiology, Rikshospitalet, Oslo University Hospital, PO Box 1094 Blindern, 0317 Oslo, Norway
    Neuropsychologia 48:2496-508. 2010
    ..The results from the present study add to previous knowledge about the cortical correlates of executive functions by indicating an important role of posterior cerebral areas in executive development...
  8. doi request reprint The brain dynamics of intellectual development: waxing and waning white and gray matter
    Christian K Tamnes
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Neuropsychologia 49:3605-11. 2011
    ....
  9. doi request reprint Differentiating maturational and aging-related changes of the cerebral cortex by use of thickness and signal intensity
    Lars T Westlye
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Neuroimage 52:172-85. 2010
    ....
  10. doi request reprint Intracortical myelin links with performance variability across the human lifespan: results from T1- and T2-weighted MRI myelin mapping and diffusion tensor imaging
    Håkon Grydeland
    Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, 0317 Oslo, Norway
    J Neurosci 33:18618-30. 2013
    ....
  11. doi request reprint Morphometry and connectivity of the fronto-parietal verbal working memory network in development
    Ylva Østby
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Norway
    Neuropsychologia 49:3854-62. 2011
    ..The results indicate that cortical and white matter maturation each play unique roles in the development of working memory...
  12. doi request reprint Brain maturation in adolescence and young adulthood: regional age-related changes in cortical thickness and white matter volume and microstructure
    Christian K Tamnes
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, 0317 Oslo, Norway
    Cereb Cortex 20:534-48. 2010
    ..It is concluded that none of the measures are redundant and that the integration of the 3 will yield a more complete understanding of brain maturation...
  13. doi request reprint Life-span changes of the human brain white matter: diffusion tensor imaging (DTI) and volumetry
    Lars T Westlye
    Department of Psychology, Center for the Study of Human Cognition, University of Oslo, Blindern, 0317 Oslo, Norway
    Cereb Cortex 20:2055-68. 2010
    ..Tractwise and voxel-based analyses yielded regional differences in development and aging but did not provide ample evidence in support of a simple last-in-first-out hypothesis of life-span changes...
  14. doi request reprint Dissociating memory processes in the developing brain: the role of hippocampal volume and cortical thickness in recall after minutes versus days
    Ylva Østby
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, 0317 Oslo, Norway
    Cereb Cortex 22:381-90. 2012
    ..This indicates that differential developmental effects on memory for short and long periods of time are related to differentially developing brain structures...
  15. doi request reprint Cortical surface area and thickness in adult survivors of pediatric acute lymphoblastic leukemia
    Christian K Tamnes
    Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, Norway
    Pediatr Blood Cancer 62:1027-34. 2015
    ..We aimed to determine whether ALL survivors have smaller cortical surface area and/or thickness, and test whether this is related to disease and treatment variables and self-reported executive functioning in everyday life...
  16. doi request reprint When does brain aging accelerate? Dangers of quadratic fits in cross-sectional studies
    Anders M Fjell
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Pb 1094 Blindern, 0317 Oslo, Norway
    Neuroimage 50:1376-83. 2010
    ..g. the quadratic model. A nonparametric local smoothing technique (the smoothing spline) was found to be more robust to the effects of different starting ages. The results were replicated in an independent sample of 309 participants...
  17. doi request reprint Neurocognitive Outcome in Very Long-Term Survivors of Childhood Acute Lymphoblastic Leukemia After Treatment with Chemotherapy Only
    Adriani Kanellopoulos
    Department of Paediatric Medicine, Women and Children s Division, Oslo University Hospital, Rikshospitalet, Norway
    Pediatr Blood Cancer 63:133-8. 2016
    ..The present study assessed neuropsychological function in very long-term childhood ALL survivors treated with chemotherapy only. We also investigated associations between neurocognitive performance and individual treatment load...
  18. doi request reprint Organizing Principles of Human Cortical Development--Thickness and Area from 4 to 30 Years: Insights from Comparative Primate Neuroanatomy
    Inge K Amlien
    Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Cereb Cortex 26:257-67. 2016
    ....
  19. doi request reprint Regional hippocampal volumes and development predict learning and memory
    Christian K Tamnes
    Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Dev Neurosci 36:161-74. 2014
    ....
  20. doi request reprint Maturation of Cortico-Subcortical Structural Networks-Segregation and Overlap of Medial Temporal and Fronto-Striatal Systems in Development
    Kristine B Walhovd
    Department of Psychology, Research Group for Lifespan Changes in Brain and Cognition LCBC, University of Oslo, Oslo, Norway
    Cereb Cortex 25:1835-41. 2015
    ..In conclusion, patterns of cortico-subcortical development as assessed by morphometric analyses in part map out segregated neural circuits at the macrostructural level. ..
  21. pmc Mental time travel and default-mode network functional connectivity in the developing brain
    Ylva Østby
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, 0373 Oslo, Norway
    Proc Natl Acad Sci U S A 109:16800-4. 2012
    ....
  22. doi request reprint Development and aging of cortical thickness correspond to genetic organization patterns
    Anders M Fjell
    Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, 0373 Oslo, Norway Department of Physical Medicine and Rehabilitation, Unit of Neuropsychology, Oslo University Hospital, 0424 Oslo, Norway
    Proc Natl Acad Sci U S A 112:15462-7. 2015
    ..This finding suggests that genetic factors contribute to cortical changes through life and calls for a lifespan perspective in research aimed at identifying the genetic and environmental determinants of cortical development and aging. ..
  23. doi request reprint Changes in white matter microstructure in the developing brain--A longitudinal diffusion tensor imaging study of children from 4 to 11years of age
    Stine K Krogsrud
    Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, Norway Electronic address
    Neuroimage 124:473-86. 2016
    ..The current study provides a comprehensive characterization of the regional patters of change in WM microstructure across pre-adolescence childhood...
  24. doi request reprint High-expanding cortical regions in human development and evolution are related to higher intellectual abilities
    Anders M Fjell
    Department of Psychology, Research Group for Lifespan Changes in Brain and Cognition
    Cereb Cortex 25:26-34. 2015
    ....
  25. doi request reprint Development of hippocampal subfield volumes from 4 to 22 years
    Stine K Krogsrud
    Department of Psychology, Research Group for Lifespan Changes in Brain and Cognition, University of Oslo, Norway
    Hum Brain Mapp 35:5646-57. 2014
    ..These results provide a detailed characterization of hippocampal subfield development from early childhood...
  26. doi request reprint Reduced neuroanatomic volumes in long-term survivors of childhood acute lymphoblastic leukemia
    Bernward Zeller
    Department of Pediatric Medicine, Oslo University Hospital, Mailbox 4950 Nydalen, N 0424 Oslo, Norway
    J Clin Oncol 31:2078-85. 2013
    ..To compare regional brain volumes in adult long-term survivors of childhood acute lymphoblastic leukemia (ALL) and healthy controls...
  27. doi request reprint The Roots of Alzheimer's Disease: Are High-Expanding Cortical Areas Preferentially Targeted?†
    Anders M Fjell
    Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, 0373 Norway Department of Physical Medicine and Rehabilitation, Unit of Neuropsychology, Oslo University Hospital, 0424 Norway
    Cereb Cortex 25:2556-65. 2015
    ....
  28. doi request reprint Heterogeneity in subcortical brain development: A structural magnetic resonance imaging study of brain maturation from 8 to 30 years
    Ylva Ostby
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Norway
    J Neurosci 29:11772-82. 2009
    ..These results emphasize the importance of studying a wide range of structural variables in the same sample, for a broader understanding of brain developmental principles...
  29. doi request reprint Normal variation in behavioral adjustment relates to regional differences in cortical thickness in children
    Kristine B Walhovd
    Department of Psychology, Center for the Study of Human Cognition CSHC, University of Oslo, PO Box 1094, Blindern, Oslo, Norway
    Eur Child Adolesc Psychiatry 21:133-40. 2012
    ..The long-term consequences are unknown, and the results point to a need for longitudinal studies of developmental trajectories of neuroanatomical foundations of behavioral adjustment...
  30. doi request reprint Diffusion tensor imaging and behavior in premature infants at 8 years of age, a randomized controlled trial with long-chain polyunsaturated fatty acids
    Astrid Nylander Almaas
    Akershus University Hospital and Faculty Division AHUS, Institute for Clinical Medicine, University of Oslo, Nordbyhagen, Norway Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway Electronic address
    Early Hum Dev 95:41-6. 2016
    ..Diffusion tensor imaging (DTI) of the brain shows reduced white matter maturation. Long-chain polyunsaturated fatty acids are hypothesized to improve both myelination and behavioral outcome...
  31. doi request reprint Brain structural maturation and the foundations of cognitive behavioral development
    Kristine B Walhovd
    Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Curr Opin Neurol 27:176-84. 2014
    ..This review aims at identifying the trends in MRI studies published within the last 18 months illuminating maturational structural brain foundations for normal cognitive behavioral development...
  32. doi request reprint Age-related cortical thickness differences in adolescents with early-onset schizophrenia compared with healthy adolescents
    Rune Thormodsen
    Vestre Viken Hospital Trust, 1309 Rud, Oslo, Norway Department of Psychology, University of Oslo, Norway Electronic address
    Psychiatry Res 214:190-6. 2013
    ..The findings are discussed in context of neurobiological processes known to be involved in brain maturation, including synaptic reorganization, pruning and myelination. ..