Integrated MEG/fMRI model validated using real auditory data

Abbas Babajani-Feremi, Hamid Soltanian-Zadeh, John E. Moran

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The main objective of this paper is to present methods and results for the estimation of parameters of our proposed integrated magnetoencephalography (MEG) and functional magnetic resonance imaging (fMRI) model. We use real auditory MEG and fMRI datasets from 7 normal subjects to estimate the parameters of the model. The MEG and fMRI data were acquired at different times, but the stimulus profile was the same for both techniques. We use independent component analysis (ICA) to extract activation-related signal from the MEG data. The stimulus-correlated ICA component is used to estimate MEG parameters of the model. The temporal and spatial information of the fMRI datasets are used to estimate fMRI parameters of the model. The estimated parameters have reasonable means and standard deviations for all subjects. Goodness of fit of the real data to our model shows the possibility of using the proposed model to simulate realistic datasets for evaluation of integrated MEG/fMRI analysis methods.

Original languageEnglish (US)
Pages (from-to)61-74
Number of pages14
JournalBrain Topography
Volume21
Issue number1
DOIs
StatePublished - Sep 1 2008
Externally publishedYes

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Magnetoencephalography
Magnetic Resonance Imaging
Datasets

All Science Journal Classification (ASJC) codes

  • Anatomy
  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Neurology
  • Clinical Neurology

Cite this

Integrated MEG/fMRI model validated using real auditory data. / Babajani-Feremi, Abbas; Soltanian-Zadeh, Hamid; Moran, John E.

In: Brain Topography, Vol. 21, No. 1, 01.09.2008, p. 61-74.

Research output: Contribution to journalArticle

Babajani-Feremi, Abbas ; Soltanian-Zadeh, Hamid ; Moran, John E. / Integrated MEG/fMRI model validated using real auditory data. In: Brain Topography. 2008 ; Vol. 21, No. 1. pp. 61-74.
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