Kristine B Walhovd

Summary

Affiliation: University of Oslo
Country: Norway

Publications

  1. ncbi request reprint Regional cortical thickness matters in recall after months more than minutes
    Kristine B Walhovd
    University of Oslo, Department of Psychology, POB 1094 Blindern, 0317 Oslo, Norway
    Neuroimage 31:1343-51. 2006
  2. ncbi request reprint Cortical volume and speed-of-processing are complementary in prediction of performance intelligence
    Kristine B Walhovd
    Institute of Psychology, University of Oslo, P B 1094, Blindern, 0317 Oslo, Norway
    Neuropsychologia 43:704-13. 2005
  3. doi request reprint Social reward dependence and brain white matter microstructure
    Astrid Bjørnebekk
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Blindern, 0317 Oslo, Norway
    Cereb Cortex 22:2672-9. 2012
  4. ncbi request reprint The functional and structural significance of the frontal shift in the old/new ERP effect
    Kristine B Walhovd
    University of Oslo, Institute of Psychology, P B 1094 Blindern, 0317 Oslo, Norway
    Brain Res 1081:156-70. 2006
  5. 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
  6. ncbi 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
  7. pmc Critical ages in the life course of the adult brain: nonlinear subcortical aging
    Anders M Fjell
    Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Neurobiol Aging 34:2239-47. 2013
  8. pmc The relationship between diffusion tensor imaging and volumetry as measures of white matter properties
    Anders M Fjell
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Norway
    Neuroimage 42:1654-68. 2008
  9. doi request reprint CSF biomarker pathology correlates with a medial temporo-parietal network affected by very mild to moderate Alzheimer's disease but not a fronto-striatal network affected by healthy aging
    Anders M Fjell
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Norway
    Neuroimage 49:1820-30. 2010
  10. ncbi request reprint Effects of age on volumes of cortex, white matter and subcortical structures
    Kristine B Walhovd
    University of Oslo, Department of Psychology, P O Box 1094 Blindern, 0317 Oslo, Norway
    Neurobiol Aging 26:1261-70; discussion 1275-8. 2005

Detail Information

Publications75

  1. ncbi request reprint Regional cortical thickness matters in recall after months more than minutes
    Kristine B Walhovd
    University of Oslo, Department of Psychology, POB 1094 Blindern, 0317 Oslo, Norway
    Neuroimage 31:1343-51. 2006
    ..This supports a unique and critical role of the thickness of distinct cortical areas in recall after months, more than after minutes...
  2. ncbi request reprint Cortical volume and speed-of-processing are complementary in prediction of performance intelligence
    Kristine B Walhovd
    Institute of Psychology, University of Oslo, P B 1094, Blindern, 0317 Oslo, Norway
    Neuropsychologia 43:704-13. 2005
    ..The main conclusion from the study is that speed and size are complementary in prediction of performance intelligence, and the theoretical implications are discussed...
  3. doi request reprint Social reward dependence and brain white matter microstructure
    Astrid Bjørnebekk
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Blindern, 0317 Oslo, Norway
    Cereb Cortex 22:2672-9. 2012
    ..In contrast, no effects were observed for NS. These findings support the theory that WM fiber tract properties modulate individual differences in social reward processing...
  4. ncbi request reprint The functional and structural significance of the frontal shift in the old/new ERP effect
    Kristine B Walhovd
    University of Oslo, Institute of Psychology, P B 1094 Blindern, 0317 Oslo, Norway
    Brain Res 1081:156-70. 2006
    ..The functional correlates need not be restricted to the older age groups...
  5. 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
    ....
  6. ncbi 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
    ....
  7. pmc Critical ages in the life course of the adult brain: nonlinear subcortical aging
    Anders M Fjell
    Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Neurobiol Aging 34:2239-47. 2013
    ..91). The main conclusions are that most brain structures do not follow a simple path throughout adult life and that accelerated decline in high age is not the norm of healthy brain aging. ..
  8. pmc The relationship between diffusion tensor imaging and volumetry as measures of white matter properties
    Anders M Fjell
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Norway
    Neuroimage 42:1654-68. 2008
    ..Further, FA and WM volume are moderately to weakly related and to a large extent sensitive to different characteristics of WM integrity...
  9. doi request reprint CSF biomarker pathology correlates with a medial temporo-parietal network affected by very mild to moderate Alzheimer's disease but not a fronto-striatal network affected by healthy aging
    Anders M Fjell
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Norway
    Neuroimage 49:1820-30. 2010
    ..It is concluded that the pattern of macrostructural brain changes in very mild to moderate AD can be clearly delineated from that of healthy aging...
  10. ncbi request reprint Effects of age on volumes of cortex, white matter and subcortical structures
    Kristine B Walhovd
    University of Oslo, Department of Psychology, P O Box 1094 Blindern, 0317 Oslo, Norway
    Neurobiol Aging 26:1261-70; discussion 1275-8. 2005
    ..In general, the findings point to global and large effects of age across brain volumes...
  11. 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. ..
  12. doi request reprint Memory training impacts short-term changes in aging white matter: a longitudinal diffusion tensor imaging study
    Andreas Engvig
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Hum Brain Mapp 33:2390-406. 2012
    ..The training effect on FA seemed to be driven by a relative decrease in radial diffusivity, which might indicate a role for myelin-related processes in WM plasticity...
  13. 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...
  14. ncbi request reprint Cognitive function, P3a/P3b brain potentials, and cortical thickness in aging
    Anders M Fjell
    Department of Psychology, University of Oslo, Norway
    Hum Brain Mapp 28:1098-116. 2007
    ..It is concluded that thickness in specific cortical areas correlates with scalp recorded P3a/P3b in elderly, and that these relationships differentially mediate higher cognitive function...
  15. pmc One-year brain atrophy evident in healthy aging
    Anders M Fjell
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, 0317 Oslo, Norway
    J Neurosci 29:15223-31. 2009
    ..Finally, atrophy was found to accelerate with increasing age, and this was especially prominent in areas vulnerable to AD. Thus, it is possible that the accelerating atrophy with increasing age is due to preclinical AD...
  16. pmc Increased sensitivity to effects of normal aging and Alzheimer's disease on cortical thickness by adjustment for local variability in gray/white contrast: a multi-sample MRI study
    Lars T Westlye
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Neuroimage 47:1545-57. 2009
    ..In sum, the findings indicate that adjusting for contrast can increase the sensitivity of MR morphometry to variables of interest...
  17. 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...
  18. pmc Consistent neuroanatomical age-related volume differences across multiple samples
    Kristine B Walhovd
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Norway
    Neurobiol Aging 32:916-32. 2011
    ..Healthy aging appears associated with more widespread and consistent age-related neuroanatomical volume differences than previously believed...
  19. ncbi request reprint Selective increase of cortical thickness in high-performing elderly--structural indices of optimal cognitive aging
    Anders M Fjell
    University of Oslo, Department of Psychology, Norway
    Neuroimage 29:984-94. 2006
    ..Further analyses showed that the latter was a result of a complex aging pattern, differing between the two performance groups, with decades of cortical thickening and subsequent thinning...
  20. ncbi request reprint Improved prediction of Alzheimer's disease with longitudinal white matter/gray matter contrast changes
    Håkon Grydeland
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Hum Brain Mapp 34:2775-85. 2013
    ..The findings suggest that signal intensity properties constitute a sensitive biomarker for cerebral degeneration in AD...
  21. 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
    ....
  22. doi request reprint Reduced white matter integrity is related to cognitive instability
    Anders M Fjell
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, 0317 Oslo, Norway
    J Neurosci 31:18060-72. 2011
    ..We concluded that performance variability is a likely consequence of individual differences in WM integrity, and that it is a promising behavioral correlate of individual differences in WM microstructure...
  23. 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
    ....
  24. 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...
  25. 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...
  26. pmc Minute effects of sex on the aging brain: a multisample magnetic resonance imaging study of healthy aging and Alzheimer's disease
    Anders M Fjell
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, 0317 Oslo, Norway
    J Neurosci 29:8774-83. 2009
    ..Analyses of the AD sample showed no interactions between sex and age for any brain region. We conclude that sex has negligible effects on the age slope of brain volumes both in healthy participants and in AD...
  27. ncbi request reprint Age does not increase rate of forgetting over weeks--neuroanatomical volumes and visual memory across the adult life-span
    Anders M Fjell
    Institute of Psychology, University of Oslo, 0317 Oslo, Norway
    J Int Neuropsychol Soc 11:2-15. 2005
    ..While neuroanatomical volumetric differences can explain some of the differences in memory functioning between younger and older persons, the hippocampus does not seem to be unique in this respect...
  28. 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...
  29. pmc Brain atrophy in healthy aging is related to CSF levels of Aβ1-42
    Anders M Fjell
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Cereb Cortex 20:2069-79. 2010
    ..Further research and follow-up examinations over several years are needed to test whether degenerative pathology will eventually develop in the group of cognitively normal elderly individuals with low levels of Abeta1-42...
  30. 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...
  31. ncbi request reprint Accelerated age-related cortical thinning in healthy carriers of apolipoprotein E epsilon 4
    Thomas Espeseth
    Department of Psychology, University of Oslo, P O Box 1094, Blindern, N 0317 Oslo, Norway
    Neurobiol Aging 29:329-40. 2008
    ....
  32. doi request reprint Mild cognitive impairment: cerebrospinal fluid tau biomarker pathologic levels and longitudinal changes in white matter integrity
    Inge K Amlien
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Pb 1094 Blindern, 0317 Oslo, Norway
    Radiology 266:295-303. 2013
    ....
  33. doi request reprint Hippocampal subfield volumes correlate with memory training benefit in subjective memory impairment
    Andreas Engvig
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Norway
    Neuroimage 61:188-94. 2012
    ..Also, previous studies have tended to exclude patients with concomitant depressive symptoms and memory complaints. The present results, however, strengthen the rationale and potential for cognitive intervention in these patients...
  34. pmc Cortical gray matter atrophy in healthy aging cannot be explained by undetected incipient cognitive disorders: a comment on Burgmans et al. (2009)
    Anders M Fjell
    Department of Psychology, University of Oslo, Norway, P B 1094 Blindern, 0317 Oslo, Norway
    Neuropsychology 24:258-63; discussion 264-266. 2010
    ..Longitudinally, 1-year atrophy was identified in all tested regions. It is likely that cortical brain atrophy is manifested in cognitively normal elderly without subclinical cognitive disorders...
  35. doi request reprint Associations between regional cortical thickness and attentional networks as measured by the attention network test
    Lars T Westlye
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Blindern, 0317 Oslo, Norway
    Cereb Cortex 21:345-56. 2011
    ....
  36. doi request reprint Linking an anxiety-related personality trait to brain white matter microstructure: diffusion tensor imaging and harm avoidance
    Lars T Westlye
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Arch Gen Psychiatry 68:369-77. 2011
    ..Therefore, anxiety-related personality traits and associated increased risk of psychiatric disease might be rooted in structural variability in large-scale neuronal networks...
  37. ncbi request reprint Instability in the latency of P3a/P3b brain potentials and cognitive function in aging
    Anders M Fjell
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Norway
    Neurobiol Aging 30:2065-79. 2009
    ..Further, the results indicate that intraindividual variability is not a uniform concept, but has unique explanatory value at the neurophysiological and behavioral level...
  38. pmc Accelerating cortical thinning: unique to dementia or universal in aging?
    Anders M Fjell
    Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, 0317 Oslo, Norway
    Cereb Cortex 24:919-34. 2014
    ..The relationship between the entorhinal changes and changes in memory performance suggests that non-AD mechanisms in AD-prone areas may still be causative for cognitive reductions...
  39. doi request reprint Neuronal correlates of the five factor model (FFM) of human personality: Multimodal imaging in a large healthy sample
    Astrid Bjørnebekk
    Centre for the Study of Human Cognition, Department of Psychology, University of Oslo, Norway, PO Box 1094 Blindern, 0317 Oslo, Norway
    Neuroimage 65:194-208. 2013
    ..The results provide novel evidence of the associations between brain structure and variations in human personality, and corroborate previous findings of a consistent neuroanatomical basis of negative emotionality...
  40. pmc Brain changes in older adults at very low risk for Alzheimer's disease
    Anders M Fjell
    Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, 0317 Oslo, Norway
    J Neurosci 33:8237-42. 2013
    ..In conclusion, reductions in regional brain volumes can be detected over the course of 1 year even in older adults who are unlikely to be in a presymptomatic stage of AD...
  41. doi request reprint A multi-modal investigation of behavioral adjustment: post-error slowing is associated with white matter characteristics
    Anders M Fjell
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Pb 1084, 0317 Oslo, Norway
    Neuroimage 61:195-205. 2012
    ..It is concluded that individual differences in WM characteristics can partly explain why some people are better at adjusting their behavior in response to poor performance than others...
  42. 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
    ....
  43. doi request reprint Apolipoprotein E ε4-related thickening of the cerebral cortex modulates selective attention
    Thomas Espeseth
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Neurobiol Aging 33:304-322.e1. 2012
    ..The results suggest that APOE ε4 modulates the structural integrity of critical nodes in brain attentional networks...
  44. 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...
  45. pmc CSF biomarkers in prediction of cerebral and clinical change in mild cognitive impairment and Alzheimer's disease
    Anders M Fjell
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, NO 0317 Oslo, Norway
    J Neurosci 30:2088-101. 2010
    ..These results indicate that morphometric changes in MCI and AD are not secondary to CSF biomarker changes and that the two types of biomarkers yield complementary information...
  46. ncbi request reprint Habituation of P3a and P3b brain potentials in men engaged in extreme sports
    Anders M Fjell
    University of Oslo, Institute of Psychology, Norway
    Biol Psychol 75:87-94. 2007
    ....
  47. ncbi request reprint Interactive effects of APOE and CHRNA4 on attention and white matter volume in healthy middle-aged and older adults
    Thomas Espeseth
    University of Oslo, Oslo, Norway
    Cogn Affect Behav Neurosci 6:31-43. 2006
    ....
  48. 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...
  49. doi request reprint Error-related negativity is mediated by fractional anisotropy in the posterior cingulate gyrus--a study combining diffusion tensor imaging and electrophysiology in healthy adults
    Lars T Westlye
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Oslo 0317, Norway
    Cereb Cortex 19:293-304. 2009
    ....
  50. 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...
  51. ncbi request reprint White matter volume predicts reaction time instability
    Kristine B Walhovd
    University of Oslo, Institute of Psychology, POB 1094 Blindern, 0317 Oslo, Norway
    Neuropsychologia 45:2277-84. 2007
    ..Further, sdRT was a stronger predictor of performance intelligence than mean RT. It is concluded that sdRT and mean RT may have different neuroanatomical correlates, and that sdRT is related to WM characteristics of the brain...
  52. ncbi request reprint Stability of brain potentials, mental abilities, and cortical thickness
    Anders M Fjell
    Institute of Psychology, University of Oslo, Ullevaal University Hospital, Oslo, Norway
    Neuroreport 18:725-8. 2007
    ..The results indicate that intraindividual variability should be used as a variable in the study of central nervous system function...
  53. ncbi request reprint The development of visual P3a and P3b
    Signe Stige
    Institute of Psychology, University of Oslo, Norway
    Dev Neuropsychol 32:563-84. 2007
    ..It is suggested that the neuropsychological significance of the different P3a and P3b parameters may change from childhood to the adult life-span...
  54. pmc High consistency of regional cortical thinning in aging across multiple samples
    Anders M Fjell
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Olso 0317, Norway
    Cereb Cortex 19:2001-12. 2009
    ..The inferior temporal lobe and anterior cingulate cortices were relatively less affected by age. The results are discussed in relation to leading theories of cognitive aging...
  55. pmc Long-term influence of normal variation in neonatal characteristics on human brain development
    Kristine B Walhovd
    Department of Psychology, University of Oslo, 0373 Oslo, Norway
    Proc Natl Acad Sci U S A 109:20089-94. 2012
    ..These findings should serve to increase our attention to early influences...
  56. ncbi request reprint Age-dependent changes in distribution of P3a/P3b amplitude and thickness of the cerebral cortex
    Anders M Fjell
    Department of Psychology, University of Oslo, Oslo, Norway
    Neuroreport 16:1451-4. 2005
    ..This is the first study to demonstrate that age-dependent changes in the scalp distribution of electrophysiological activity are related to differences in thickness of the cerebral cortex...
  57. ncbi request reprint Age-sensitivity of P3 in high-functioning adults
    Anders M Fjell
    Institute of Psychology, University of Oslo, P B 1094 Blindern, 0317 Oslo, Norway
    Neurobiol Aging 26:1297-9; discussion 1301-6. 2005
    ..In the following, we will present examples from empirical literature as well as re-analyses of some of our own work to illustrate problematic aspects of Daffner et al.'s position...
  58. ncbi request reprint Regional thinning of the cerebral cortex in schizophrenia: effects of diagnosis, age and antipsychotic medication
    Ragnar Nesvåg
    Department of Psychiatric Research, Diakonhjemmet Hospital, and Institute of Psychiatry, University of Oslo, Norway
    Schizophr Res 98:16-28. 2008
    ..The lack of significant influence from antipsychotic medication supports that regional cortical thinning is an inherent feature of the neurobiological disease process in schizophrenia...
  59. ncbi request reprint Age-differences in verbal recognition memory revealed by ERP
    Anders M Fjell
    Institute of Psychology, University of Oslo, P B 1094 Blindern, 0317 Oslo, Norway
    Clin EEG Neurosci 36:176-87. 2005
    ..Further, the data point to differences in semantic versus non-semantic processing across the adult life span, and it is concluded that specific cognitive memory processes are differentially involved at different ages...
  60. ncbi request reprint Life-span changes in P3a
    Anders M Fjell
    Institute of Psychology, University of Oslo, Oslo, Norway
    Psychophysiology 41:575-83. 2004
    ..P3a seems selectively more impaired with age than P3b, but this impairment seems less pronounced at Fz than at Cz and Pz. There is a need for complex theoretical integration of these and previous findings...
  61. doi request reprint Everyday memory: self-perception and structural brain correlates in a healthy elderly population
    Astrid Bjørnebekk
    Department of Psychology, University of Oslo, Norway
    J Int Neuropsychol Soc 16:1115-26. 2010
    ....
  62. ncbi request reprint Structural brain changes in aging: courses, causes and cognitive consequences
    Anders M Fjell
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Norway
    Rev Neurosci 21:187-221. 2010
    ....
  63. ncbi request reprint Basic information processing of neurotics and stables: an experimental ERP approach to personality and distractibility
    Anders M Fjell
    Institute of Psychology, University of Oslo, Norway
    Scand J Psychol 46:493-502. 2005
    ....
  64. ncbi request reprint Effects of memory training on cortical thickness in the elderly
    Andreas Engvig
    Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
    Neuroimage 52:1667-76. 2010
    ..The present study included short-term assessments, and follow-up studies are needed in order to assess whether such training indeed alters the long-term structural trajectories...
  65. ncbi request reprint Effects of auditory stimulus intensity and hearing threshold on the relationship among P300, age, and cognitive function
    Anders M Fjell
    Institute of Psychology, University of Oslo, P B No 1094 Blindern, Norway
    Clin Neurophysiol 114:799-807. 2003
    ..To isolate effects of hearing from cognition, two experiments were designed to compare the effects of variation in stimulus intensities with naturally occurring differences in hearing thresholds...
  66. doi request reprint Amnesia following herpes simplex encephalitis: diffusion-tensor imaging uncovers reduced integrity of normal-appearing white matter
    Håkon Grydeland
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, PO Box 1094, Blindern, 0317 Oslo, Norway
    Radiology 257:774-81. 2010
    ....
  67. doi request reprint P300 amplitude age reductions are not caused by latency jitter
    Kristine B Walhovd
    Center for the Study of Human Cognition, Institute of Psychology, University of Oslo, Oslo, Norway
    Psychophysiology 45:545-53. 2008
    ..It is concluded that previous reports of amplitude reduction as a function of age seem to be valid regardless of whether latency jitter correction has been applied...
  68. doi request reprint White matter diffusivity predicts memory in patients with subjective and mild cognitive impairment and normal CSF total tau levels
    Ramune Grambaite
    Department of Neurology, Akershus University Hospital, Lørenskog, Norway
    J Int Neuropsychol Soc 16:58-69. 2010
    ..The smaller sample size in the T-tau pathology group precludes firm conclusions. In the normal T-tau group, white matter tract and memory changes may be associated with normal aging, or with non-tau related pathological mechanisms...
  69. doi request reprint Neural tract development of infants born to methadone-maintained mothers
    Kristine B Walhovd
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Oslo, Norway
    Pediatr Neurol 47:1-6. 2012
    ..These findings highlight the need for further assessments of the effects of prenatal methadone exposure on neural development...
  70. doi request reprint New tools for the study of Alzheimer's disease: what are biomarkers and morphometric markers teaching us?
    Anders M Fjell
    Department of Psychology, Center for the Study of Human Cognition, University of Oslo, Oslo, Norway
    Neuroscientist 17:592-605. 2011
    ..In conclusion, CSF and MRI biomarkers are extremely important, but it is not known whether they can distinguish events that will lead to AD from events that will not before cognitive reductions are measurable...
  71. ncbi request reprint On the topography of P3a and P3b across the adult lifespan--a factor-analytic study using orthogonal procrustes rotation
    Anders M Fjell
    Institute of Psychology, University of Oslo, Norway
    Brain Topogr 15:153-64. 2003
    ..Implications of the findings and the utility of Procrustes rotation in ERP studies are discussed...
  72. ncbi request reprint Thinking styles in relation to personality traits: an investigation of the Thinking Styles Inventory and NEO-PI-R
    Anders M Fjell
    Institute of Psychology, University of Oslo, Norway
    Scand J Psychol 45:293-300. 2004
    ..Finally, the TSI-scales and factors were replicable across samples by Procrustes rotation. The question whether thinking style may be regarded as a valid and reliable construct is discussed...
  73. ncbi request reprint The relationship between P3 and neuropsychological function in an adult life span sample
    Kristine B Walhovd
    Institute of Psychology, University of Oslo, P B 1094 Blindern, 0317 Oslo, Norway
    Biol Psychol 62:65-87. 2003
    ....
  74. doi request reprint Neuroimaging results impose new views on Alzheimer's disease--the role of amyloid revised
    Anders M Fjell
    Center for the Study of Human Cognition, Department of Psychology, University of Oslo, Pb 1094 Blindern, 0317 Oslo, Norway
    Mol Neurobiol 45:153-72. 2012
    ....
  75. ncbi request reprint One-year test-retest reliability of auditory ERPs in young and old adults
    Kristine B Walhovd
    University of Oslo, Institute of Psychology, PO Box 1094 Blindern, 0317 Oslo, Norway
    Int J Psychophysiol 46:29-40. 2002
    ..In general, the old group exhibited weaker P3 peak latency reliabilities than the young group. However, many of these differences did not reach statistical significance. Implications of the findings are discussed...