Figure 7.

Local neural activity levels in sensorimotor areas correlate with movement kinematics. A–C, At variance with the widespread activity associated to RtG movements, only 8 areas were found to have a statistically significant correlation with movement kinematics. Color bar represents the correlation coefficient. The neural activity in the majority of these areas, that is, the RFA, the MOp, the CFA for the ipsilateral (left) hemisphere and the RFA and MOp for the contralateral neocortex, was anticorrelated with respect to movement kinematics. At the contrary, the activity in the right SSp-ll positively correlated with speed peaks. D, Additional neuro-kinematic correlations in the ipsilateral CFA and in the contralateral RFA. The PeakMax in the ipsilateral CFA is negatively correlated with movement distance (“pathlength”). The latency to reach the PeakMax in the contralateral RFA correlated with both the movement smoothness (“speed peaks”) and the movement distance (“pathlength”). The slope in the contralateral RFA negatively correlated with the movement smoothness. For the correlation analysis of each pair of parameters, we set a Benjamin–Hochberg significance level of α < 0.05.