Fig. 5: Firing rate and spectral power in the shape task.

a Neuronal spiking in the shape stimulus set, prior to and after training. Mean firing rate is shown separately for selective (N = 174 and 241 neurons, prior to training and after the training, respectively); and non-selective sites (N = 465 and 626, respectively). b Mean neuronal spiking shown separately for match and nonmatch trials from selective sites (N = 174 and 241 prior to training and after the training respectively). c Mean firing rate shown separately for sites that exhibited selectivity during each of the four individual task epoch i.e. first (N = 86 neurons) and (N = 55, 63 neurons) for match and non-match during second stimulus presentation prior to training; N = 91 and (N = 69, 76) neurons after training; and first delay period N = 56 and second delay period N = 36, 35 neurons prior to training; N = 64 and N = 31, 48 after training. d Mean LFP induced spectral power recorded with the shape stimulus set from the prefrontal cortex, after training. Spectral power from selective sites (left column), partially-selective sites (middle column) and non-selective sites (right column) is shown separately. N = 4603 trials, 13329 trials, and 20234 trials for selective, partially-selective, and non-selective sites after training, respectively; e As in d, for recordings prior to training (n = 2784 trials, 10872 trials and, 16442 trials respectively).