Reproducibility of fMRI results across four institutions using a spatial working memory task Academic Article uri icon

Overview

MeSH Major

  • Frontal Lobe
  • Magnetic Resonance Imaging
  • Memory
  • Parietal Lobe
  • Space Perception

abstract

  • Four U.S. sites formed a consortium to conduct a multisite study of fMRI methods. The primary purpose of this consortium was to examine the reliability and reproducibility of fMRI results. FMRI data were collected on healthy adults during performance of a spatial working memory task at four different institutions. Two sets of data from each institution were made available. First, data from two subjects were made available from each site and were processed and analyzed as a pooled data set. Second, statistical maps from five to eight subjects per site were made available. These images were aligned in stereotactic space and common regions of activation were examined to address the reproducibility of fMRI results when both image acquisition and analysis vary as a function of site. Our grouped and individual data analyses showed reliable patterns of activation in dorsolateral prefrontal cortex and posterior parietal cortex during performance of the working memory task across all four sites. This multisite study, the first of its kind using fMRI data, demonstrates highly consistent findings across sites.

publication date

  • October 1998

Research

keywords

  • Academic Article

Identity

Language

  • eng

Digital Object Identifier (DOI)

  • 10.1006/nimg.1998.0360

PubMed ID

  • 9758739

Additional Document Info

start page

  • 249

end page

  • 61

volume

  • 8

number

  • 3