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. Author manuscript; available in PMC: 2012 Nov 17.
Published in final edited form as: Nature. 2012 May 17;485(7398):368–371. doi: 10.1038/nature10987

Figure 2.

Figure 2

Grasp-related raw data collected during normal conditions. A) Firing rates of 104 neuronal signals recorded during two grasps. B) Ensemble average of 229 trials aligned to time of ball contact. C) Actual and predicted EMG during the same period as (A), including flexor digitorum superficialis (FDS), flexor digitorum profundus (FDP). flexor carpi radialis (FCR), flexor carpi ulnaris (FCU), extensor carpi radialis (ECR), extensor digitorum communis (EDC), extensor carpi ulnaris (ECU) and flexor policis brevis (FPB). Predicted EMG was computed using multiple input, linear impulse response decoders built from data collected earlier in the session. Vertical dashed lines mark the time of ball contact. R2 values indicate prediction accuracy for the 20 minute data file. D) Ensemble averages of EMG activity, aligned to the time of initial contact.