This project has the input data and code needed to carry out the MVPA analyses described in Etzel JA, Valchev N, Gazzola V, Keysers C. (2016). Is Brain Activity during Action Observation Modulated by the Perceived Fairness of the Actor?. PLOS ONE. DOI: 10.1371/journal.pone.0145350 PMID: 26820995 If you have questions or difficulty with the code, or would like details about results not included here, please contact Jo Etzel, jetzel@wustl.edu. 1. The OSF component **processed_input_images** has the NIfTI input images after all MVPA preprocessing (one image per person and condition), not the full timeseries or raw images. 2. The OSF component **support_files** has NIfTI images giving the voxels making up each ROI (listed in Table 1). These images are used by OSFcode_Table1.R to carry out the ROI-based MVPA. classKey.txt gives the mapping of the "types" in the functional images (processed_input_images). 3d_222.rds, lookup_radius2_222.rds, and lookup_radius3_222.rds are used to carry out the MVPA searchlight analysis (OSFcode_searchlight_role.R and OSFcode_searchlight_stimulusType.R). 3. The OSF component **R code** contains the R code to perform the MVPA analyses described in the manuscript. 4. The OSF component **results images** has the searchlight results images (NIfTI) plotted in Figure 3 and Figure 4. "perm0" in the file names indicates they are the true-labeled (not permuted-label) images. [1]: http://www.ncbi.nlm.nih.gov/pubmed/26820995