What do differences between multi-voxel and univariate analysis mean? How subject-, voxel-, and trial-level variance impact fMRI analysis

@article{Davis2014WhatDD,
  title={What do differences between multi-voxel and univariate analysis mean? How subject-, voxel-, and trial-level variance impact fMRI analysis},
  author={Tyler Davis and Karen F. LaRocque and Jeanette A. Mumford and Kenneth A. Norman and Anthony D. Wagner and Russell A. Poldrack},
  journal={NeuroImage},
  year={2014},
  volume={97},
  pages={271-283}
}
Multi-voxel pattern analysis (MVPA) has led to major changes in how fMRI data are analyzed and interpreted. Many studies now report both MVPA results and results from standard univariate voxel-wise analysis, often with the goal of drawing different conclusions from each. Because MVPA results can be sensitive to latent multidimensional representations and processes whereas univariate voxel-wise analysis cannot, one conclusion that is often drawn when MVPA and univariate results differ is that… CONTINUE READING
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