Fig. 4: Joint tunings of the example neuron around movement onset and end.
From: Multiplicative joint coding in preparatory activity for reaching sequence in macaque motor cortex
a Directional tuning curves of the example cell in Fig. 3 were plotted around MO (−100–100 ms to MO, peri-MO). Left: Normalized firing rates in DR were trial-averaged and plotted in corresponding condition colors (DR trial number = 614, 20 trials per condition; mean ± 2 standard error). Tuning curves were fitted by Fourier expansion separately. Middle: Tuning curves of firing rates reconstructed by the addictive model. Right: Tuning curves of firing rates reconstructed by the multiplicative model. R2 showed the goodness-of-fit of the model tuning curve. b Similar to (a), directional tuning curves around ME (100–300 ms to MO, peri-ME).
