Figure 2.

Representational similarity analysis (RSA) pipeline, including EEG searchlight analysis, computation of behavioral patterns, representation of categorical patterns and RDM computation for the three different modalities: EEG data (in green), behavioral data (in orange) and categorical models (in blue). As notations, we used t to indicate time, k for the 33 conditions, s₁..s_n(p) indicate the sensors used to record behavioral data (n = 8 for muscle activity and p = 5 for the PCs of kinematic activity), C₁..C_m the 64 channels for neural data recording, M₁..M_n denote the muscle activations, while θ₁..θ_j indicate the kinematic synergies derived from joint angles.