Fig. 6.
Two neuronal classes. A: delay period firing rate in the memory-guided reach vs. visually guided reach. Each dot corresponds to a single neuron. Solid line is the unity line. B: distribution of the difference in the delay period firing rates between the 2 task conditions. C: average spike density histograms for the preferred target for 2 classes of neurons. Left: memory-guided reach; middle: visually guided reach; right: difference between the 2 reach tasks.