SEPPO AHLFORS

Summary

Affiliation: Harvard University
Country: USA

Publications

  1. ncbi request reprint Geometrical interpretation of fMRI-guided MEG/EEG inverse estimates
    Seppo P Ahlfors
    MGH MIT HMS Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, 149 13th Street, Mailcode 149 2301, Charlestown, MA 02129, USA
    Neuroimage 22:323-32. 2004
  2. pmc Cancellation of EEG and MEG signals generated by extended and distributed sources
    Seppo P Ahlfors
    Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital Harvard Medical School, Charlestown, 02129, USA
    Hum Brain Mapp 31:140-9. 2010
  3. pmc Sensitivity of MEG and EEG to source orientation
    Seppo P Ahlfors
    MGH HST Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital Harvard Medical School, 149 13th Street, Rm 2301, Charlestown, MA 02129, USA
    Brain Topogr 23:227-32. 2010

Detail Information

Publications3

  1. ncbi request reprint Geometrical interpretation of fMRI-guided MEG/EEG inverse estimates
    Seppo P Ahlfors
    MGH MIT HMS Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, 149 13th Street, Mailcode 149 2301, Charlestown, MA 02129, USA
    Neuroimage 22:323-32. 2004
    ..Importantly, when the fMRI loci do not match the true MEG/EEG loci, the solution is insensitive to those fMRI loci...
  2. pmc Cancellation of EEG and MEG signals generated by extended and distributed sources
    Seppo P Ahlfors
    Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital Harvard Medical School, Charlestown, 02129, USA
    Hum Brain Mapp 31:140-9. 2010
    ..Furthermore, the selective cancellation may be used to explain some observed differences between EEG and MEG in terms of focal vs. widespread cortical activity...
  3. pmc Sensitivity of MEG and EEG to source orientation
    Seppo P Ahlfors
    MGH HST Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital Harvard Medical School, 149 13th Street, Rm 2301, Charlestown, MA 02129, USA
    Brain Topogr 23:227-32. 2010
    ..06 for MEG and 0.63 for EEG. The difference in the sensitivity to the source orientation is expected to contribute to systematic differences in the signal-to-noise ratio between MEG and EEG...

Research Grants3

  1. Inferring Cortical Feed-Forward and Feedback Processes with Human Neuroimaging
    SEPPO AHLFORS; Fiscal Year: 2007
    ..It could lead to a better understanding of the neural mechanisms underlying cognitive functions, as well as to potential applications for revealing mechanisms of neural disorders. ..
  2. Inferring Cortical Feed-Forward and Feedback Processes with Human Neuroimaging
    SEPPO AHLFORS; Fiscal Year: 2009
    ..It could lead to a better understanding of the neural mechanisms underlying cognitive functions, as well as to potential applications for revealing mechanisms of neural disorders. ..