J Ashburner

Summary

Affiliation: University College London
Country: UK

Publications

  1. ncbi request reprint Nonlinear spatial normalization using basis functions
    J Ashburner
    Functional Imaging Laboratory, Wellcome Department of Cognitive Neurology, Institute of Neurology, London, United Kingdom
    Hum Brain Mapp 7:254-66. 1999
  2. ncbi request reprint Identifying global anatomical differences: deformation-based morphometry
    J Ashburner
    Wellcome Department of Cognitive Neurology, Institute of Neurology, London, UK
    Hum Brain Mapp 6:348-57. 1998
  3. ncbi request reprint Image registration using a symmetric prior--in three dimensions
    J Ashburner
    The Wellcome Department of Cognitive Neurology, Institute of Neurology, London, United Kingdom
    Hum Brain Mapp 9:212-25. 2000
  4. ncbi request reprint Modeling geometric deformations in EPI time series
    J L Andersson
    The Wellcome Department of Cognitive Neurology, London, United Kingdom
    Neuroimage 13:903-19. 2001
  5. pmc Statistical parametric mapping with 18F-dopa PET shows bilaterally reduced striatal and nigral dopaminergic function in early Parkinson's disease
    K Ito
    MRC Cyclotron Unit, Hammersmith Hospital, London, UK
    J Neurol Neurosurg Psychiatry 66:754-8. 1999
  6. ncbi request reprint Classical and Bayesian inference in neuroimaging: applications
    K J Friston
    The Wellcome Department of Cognitive Neurology and The Institute of Cognitive Neuroscience, University College London, Queen Square, London, WC1N 3BG, United Kingdom
    Neuroimage 16:484-512. 2002
  7. ncbi request reprint A voxel-based morphometric study of ageing in 465 normal adult human brains
    C D Good
    Wellcome Department of Cognitive Neurology, Institute of Neurology, London, United Kingdom
    Neuroimage 14:21-36. 2001
  8. ncbi request reprint Why voxel-based morphometry should be used
    J Ashburner
    The Wellcome Department of Cognitive Neurology, Institute of Neurology, Queen Square, London WC1N 3BG, United Kingdom
    Neuroimage 14:1238-43. 2001
  9. pmc Diffusion-based spatial priors for imaging
    L M Harrison
    The Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, 12 Queen Square, London, WC1N 3BG, UK
    Neuroimage 38:677-95. 2007
  10. ncbi request reprint The role of the medial temporal lobe in autistic spectrum disorders
    C H Salmond
    Developmental Cognitive Neuroscience Unit, Institute of Child Health, University College London, London, UK
    Eur J Neurosci 22:764-72. 2005

Collaborators

Detail Information

Publications27

  1. ncbi request reprint Nonlinear spatial normalization using basis functions
    J Ashburner
    Functional Imaging Laboratory, Wellcome Department of Cognitive Neurology, Institute of Neurology, London, United Kingdom
    Hum Brain Mapp 7:254-66. 1999
    ....
  2. ncbi request reprint Identifying global anatomical differences: deformation-based morphometry
    J Ashburner
    Wellcome Department of Cognitive Neurology, Institute of Neurology, London, UK
    Hum Brain Mapp 6:348-57. 1998
    ..To illustrate the method, we compared the gross morphometry of male and female subjects. We also assessed brain asymmetry, the effect of handedness, and interactions among these effects...
  3. ncbi request reprint Image registration using a symmetric prior--in three dimensions
    J Ashburner
    The Wellcome Department of Cognitive Neurology, Institute of Neurology, London, United Kingdom
    Hum Brain Mapp 9:212-25. 2000
    ..e., warping brain A to brain B should not be different probablistically from warping B to A). A gradient descent algorithm is presented for estimating the optimum deformations...
  4. ncbi request reprint Modeling geometric deformations in EPI time series
    J L Andersson
    The Wellcome Department of Cognitive Neurology, London, United Kingdom
    Neuroimage 13:903-19. 2001
    ..An experiment on a subject performing voluntary movements in the scanner yielded plausible estimates of the deformation fields and their application to "unwarp" the time series significantly reduced movement-related variance...
  5. pmc Statistical parametric mapping with 18F-dopa PET shows bilaterally reduced striatal and nigral dopaminergic function in early Parkinson's disease
    K Ito
    MRC Cyclotron Unit, Hammersmith Hospital, London, UK
    J Neurol Neurosurg Psychiatry 66:754-8. 1999
    ..To apply statistical parametric mapping to 18F-dopa PET data sets, to examine the regional distribution of changes in dopaminergic metabolism in early asymmetric Parkinson's disease...
  6. ncbi request reprint Classical and Bayesian inference in neuroimaging: applications
    K J Friston
    The Wellcome Department of Cognitive Neurology and The Institute of Cognitive Neuroscience, University College London, Queen Square, London, WC1N 3BG, United Kingdom
    Neuroimage 16:484-512. 2002
    ..We conclude with some general comments on Bayesian approaches to image analysis and on some unresolved issues...
  7. ncbi request reprint A voxel-based morphometric study of ageing in 465 normal adult human brains
    C D Good
    Wellcome Department of Cognitive Neurology, Institute of Neurology, London, United Kingdom
    Neuroimage 14:21-36. 2001
    ..There was no interaction of age with sex for regionally specific effects. These results corroborate previous reports and indicate that VBM is a useful technique for studying structural brain correlates of ageing through life in humans...
  8. ncbi request reprint Why voxel-based morphometry should be used
    J Ashburner
    The Wellcome Department of Cognitive Neurology, Institute of Neurology, Queen Square, London WC1N 3BG, United Kingdom
    Neuroimage 14:1238-43. 2001
    ..We first review the tenets of VBM, paying particular attention to the relationship between VBM and tensor-based morphometry. The last two sections of this response deal with the specific concerns raised by Dr. Bookstein...
  9. pmc Diffusion-based spatial priors for imaging
    L M Harrison
    The Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, 12 Queen Square, London, WC1N 3BG, UK
    Neuroimage 38:677-95. 2007
    ..Critically, this means adaptive smoothing becomes an integral part of estimation and inference. We illustrate the method using synthetic and real fMRI data...
  10. ncbi request reprint The role of the medial temporal lobe in autistic spectrum disorders
    C H Salmond
    Developmental Cognitive Neuroscience Unit, Institute of Child Health, University College London, London, UK
    Eur J Neurosci 22:764-72. 2005
    ..The structural imaging data highlight abnormalities in several brain regions previously implicated in ASD, including the medial temporal lobes...
  11. ncbi request reprint A global estimator unbiased by local changes
    J L Andersson
    The Wellcome Department of Cognitive Neurology, London, United Kingdom
    Neuroimage 13:1193-206. 2001
    ..The advantage of the new estimator is that it is not informed of experimental design and relies only on general assumptions regarding the nature of the signal...
  12. ncbi request reprint Cerebral asymmetry and the effects of sex and handedness on brain structure: a voxel-based morphometric analysis of 465 normal adult human brains
    C D Good
    Wellcome Department of Cognitive Neurology, Institute of Neurology, Queen Square, London WC1N 3BG, United Kingdom
    Neuroimage 14:685-700. 2001
    ..Males had increased grey matter volume bilaterally in the mesial temporal lobes, entorhinal and perirhinal cortex, and in the anterior lobes of the cerebellum, but no regions of increased grey matter concentration...
  13. ncbi request reprint Learning- and expectation-related changes in the human brain during motor learning
    N Ramnani
    Wellcome Department of Cognitive Neurology, Institute of Neurology, London WC1N 3BG, United Kingdom
    J Neurophysiol 84:3026-35. 2000
    ..The changes seen in the ipsilateral cerebellar cortex may be due either to the violations of sensory predictions, or to learning-related increases in the excitability of cerebellar neurons to presentations of the CS+...
  14. ncbi request reprint Representation of the temporal envelope of sounds in the human brain
    A L Giraud
    Wellcome Department of Cognitive Neurology, Institute of Neurology, London WC1N 3BG, United Kingdom
    J Neurophysiol 84:1588-98. 2000
    ....
  15. ncbi request reprint Generative and recognition models for neuroanatomy
    K J Friston
    The Wellcome Department of Imaging Neuroscience, University of London, Institute of Neurology, London, UK WC1N 3BG
    Neuroimage 23:21-4. 2004
  16. pmc Navigation-related structural change in the hippocampi of taxi drivers
    E A Maguire
    Wellcome Department of Cognitive Neurology, Institute of Neurology, University College London, Queen Square, London WC1N 3BG, United Kingdom
    Proc Natl Acad Sci U S A 97:4398-403. 2000
    ..It seems that there is a capacity for local plastic change in the structure of the healthy adult human brain in response to environmental demands...
  17. ncbi request reprint Frontal, midbrain and striatal dopaminergic function in early and advanced Parkinson's disease A 3D [(18)F]dopa-PET study
    J S Rakshi
    MRC Cyclotron Unit, Hammersmith Hospital, The Wellcome Department of Cognitive Neurology, Institute of Neurology, London, UK
    Brain 122:1637-50. 1999
    ..This suggests, therefore, that Parkinson's disease is a monoaminergic neurodegenerative disorder...
  18. ncbi request reprint Classical and Bayesian inference in neuroimaging: theory
    K J Friston
    The Wellcome Department of Imaging Neuroscience, The Gatsby Computational Neuroscience Unit, University College London, Queen Square, London, WC1N 3BG, United Kingdom
    Neuroimage 16:465-83. 2002
    ..Although diverse, all these estimation problems are accommodated by the PEB framework described in this paper...
  19. ncbi request reprint Distributional assumptions in voxel-based morphometry
    C H Salmond
    Developmental Cognitive Neuroscience Unit, Institute of Child Health, University College London, London, United Kingdom
    Neuroimage 17:1027-30. 2002
    ..This is despite the fact that conventional group comparisons appear to be robust, remaining valid even with no smoothing. The implications of the results for researchers using voxel-based morphometry are discussed...
  20. ncbi request reprint Computational neuroanatomy: new perspectives for neuroradiology
    C D Good
    Wellcome Department of Cognitive Neurology, ION, UCL, London, UK
    Rev Neurol (Paris) 157:797-806. 2001
    ..This review will describe the methodology and clinical applications of these techniques...
  21. ncbi request reprint Learning arbitrary visuomotor associations: temporal dynamic of brain activity
    I Toni
    Wellcome Department of Cognitive Neurology, Institute of Neurology, 12 Queen Square, London, WC1N 3BG, United Kingdom
    Neuroimage 14:1048-57. 2001
    ..These findings suggest the inferior temporal and the ventral prefrontal cortex are critical neural nodes for integrating perceptual information with executive processes...
  22. ncbi request reprint Assessing study-specific regional variations in fMRI signal
    B Lipschutz
    The Wellcome Department of Cognitive Neurology, Institute of Neurology, Queen Square, London, WC1N 3BG, United Kingdom
    Neuroimage 13:392-8. 2001
    ..It requires only the functional data and can thus be applied post hoc and without any additional scans...
  23. pmc Neural basis of an inherited speech and language disorder
    F Vargha-Khadem
    Cognitive Neuroscience Unit, Institute of Child Health, University College London Medical School, Wolfson Centre, Mecklenbourgh Square, London WC1N 2AP, United Kingdom
    Proc Natl Acad Sci U S A 95:12695-700. 1998
    ....
  24. ncbi request reprint The precision of anatomical normalization in the medial temporal lobe using spatial basis functions
    C H Salmond
    Developmental Cognitive Neuroscience Unit, Institute of Child Health, University College London, 30 Guilford Street, London WCIN 1EM, United Kingdom
    Neuroimage 17:507-12. 2002
    ..quot; The implications of our results, for users of voxel-based morphometry, are discussed...
  25. ncbi request reprint MRI analysis of an inherited speech and language disorder: structural brain abnormalities
    K E Watkins
    Developmental Cognitive Neuroscience Unit, Institute of Child Health, University College London Medical School, London, UK
    Brain 125:465-78. 2002
    ..These results thus provide further evidence of a relationship between the abnormal development of this nucleus and the impairments in oromotor control and articulation reported in the KE family...
  26. ncbi request reprint Voxel-based morphometry of herpes simplex encephalitis
    D R Gitelman
    Cognitive Neurology and Alzheimer's Disease Center, Department of Neurology, Northwestern University Medical School, Chicago, Illinois 60611, USA
    Neuroimage 13:623-31. 2001
    ..The results, while consistent with the well-known histopathology of the disease, also demonstrate potential difficulties with this method...
  27. doi request reprint Voxel-wise analysis of diffusion tensor MRI improves the confidence of diagnosis of corticobasal degeneration non-invasively
    M Bozzali
    Neuroimaging Laboratory, Santa Lucia Foundation, IRCCS, Via Ardeatina 306, 00179 Rome, Italy
    Parkinsonism Relat Disord 14:436-9. 2008
    ..The lateralized distribution of DT-MRI abnormalities was consistent with clinical features providing a substantial support to the diagnosis...