Multi-site characterization of an fMRI working memory paradigm: Reliability of activation indices

Anastasia Yendiki, Douglas N. Greve, Stuart Wallace, Mark Vangel, Jeremy Bockholt, Bryon A. Mueller, Vince Magnotta, Nancy Andreasen, Dara S. Manoach, Randy L. Gollub

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

Neuroimaging studies are facilitated significantly when it is possible to recruit subjects and acquire data at multiple sites. However, the use of different scanners and acquisition protocols is a potential source of variability in multi-site data. In this work we present a multi-site study of the reliability of fMRI activation indices, where 10 healthy volunteers were scanned at 4 different sites while performing a working memory paradigm. Our results indicate that, even with different scanner manufacturers and field strengths, activation variability due to site differences is small compared to variability due to subject differences in this cognitive task, provided we choose an appropriate activation measure.

Original languageEnglish (US)
Pages (from-to)119-131
Number of pages13
JournalNeuroImage
Volume53
Issue number1
DOIs
StatePublished - Oct 2010

Keywords

  • FMRI
  • Multi-center studies
  • Reliability
  • SIRP

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    Yendiki, A., Greve, D. N., Wallace, S., Vangel, M., Bockholt, J., Mueller, B. A., Magnotta, V., Andreasen, N., Manoach, D. S., & Gollub, R. L. (2010). Multi-site characterization of an fMRI working memory paradigm: Reliability of activation indices. NeuroImage, 53(1), 119-131. https://doi.org/10.1016/j.neuroimage.2010.02.084