1. "EMG_AU_dyadic.txt": EMG and AU responses amplitudes between viewing the neutral (0–1 s after stimulus onset) and maximal phases (2.5–3.0 s after stimulus onset) of the dynamic facial expression. 2. "EMG30Hzlongtbl.txt": Resampled EMG amplitude in 29.97 Hz and frame-wise AU amplitudes in the long form. 3. "FRZMcctbl.txt": cross-correlation table betweeen ZM time series and FaceReader AU12 time series. 4. "PFZMcctbl.txt": cross-correlation table betweeen ZM time series and Py-Feat AU12 time series. 5. "OFZMcctbl.txt": cross-correlation table betweeen ZM time series and OpenFace AU12 time series. 6. "EMG_AU_accuracy_OSF.mlx": Matlab live code file for estimating automated FACS performance in sign accuracy and spontaneous facial mimicry detection. 7. "Live_EMG_AU_crosscorr_OSF.Rmd" & "Live_EMG_AU_crosscorr_OSF.html": the R markdown file to estimate (a) Repeated measure correlation between ZM and AU12 responses; (b) Validation of detection of emotional and presentation condition interaction using automated FACS; (c) Calculate and plot group-average time series of ZM and AU12; (d) Calculate and plot cross-correlation between ZM and AU12 time series. The html file is the knitted output.