Fig. 6
From: Cortical population activity within a preserved neural manifold underlies multiple motor behaviors
Neural modes with task-independent activity as predictors to muscle activity. a Example EMG predictions for two muscles during 24 trials of the 1-D isometric task for one of the sessions from Monkey J. Predictions were based on the two leading target-related neural modes. b Normalized R2 of the EMG predictions for four different decoders, each based on the two leading neural modes most strongly related to the corresponding dPCA behavioral parameter. Performance was averaged across all muscles, wrist tasks, and monkeys. Boxplots show median: center line; interquartile range: box; and data range (0.5 × interquartile range): whiskers. The *** denote P~0 (two-sided Wilcoxon rank sum test). As reference, the R2 of the decoders based on all 12 dPCA modes was 0.53 ± 0.21. c Normalized R2 of the EMG predictions vs. the neural variance accounted for (VAF) by each of the four sets of neural modes identified with dPCA. Data averaged across all sessions and muscles for each monkey separately (legend). Squares: median ± s.d.; color code as in b. Same data as in b and Fig. 4c
