Multisite reliability of cognitive BOLD data

  title={Multisite reliability of cognitive BOLD data},
  author={Greg G. Brown and Daniel H. Mathalon and Hal S. Stern and Judith M. Ford and Bryon A. Mueller and Douglas N. Greve and Gregory McCarthy and James Voyvodic and Gary H. Glover and Michele T. Diaz and Elizabeth Yetter and Ibrahim Burak {\"O}zyurt and Kasper W. Jorgensen and Cynthia G. Wible and Jessica A. Turner and Wesley K. Thompson and Steven G. Potkin},
  volume={54 3},
Investigators perform multi-site functional magnetic resonance imaging studies to increase statistical power, to enhance generalizability, and to improve the likelihood of sampling relevant subgroups. Yet undesired site variation in imaging methods could off-set these potential advantages. We used variance components analysis to investigate sources of variation in the blood oxygen level-dependent (BOLD) signal across four 3-T magnets in voxelwise and region-of-interest (ROI) analyses. Eighteen… CONTINUE READING
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