The Journal of Neuroscience, July 5, 2006, ():
Representation of Future and Previous Spatial Goals by Separate Neural Populations in Prefrontal Cortex
J. Neurosci. Genovesio et al.
26: 7305
Supplemental data
Files in this Data Supplement:
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Supplemental table
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Supplemental Figure 1. Lack of regional segregation of previous- and future-goal selectivity within PF. Reconstructed surface penetration sites, located relative to pins inserted at known chamber coordinates and recovered electrolytic lesions. Penetrations with relatively high percentages of previous-goal (left) and future-goal (right) selective neurons are marked by the filled circles, with data from monkeys 1 (top) and 2 (bottom) illustrated separately. The sulci shown as solid lines come from monkey 2. They are superimposed on the sulci shown as dashed lines, which come from monkey 1. Format and abbreviations as in Fig. 1C. Red squares show the locations of hybrid neurons in each penetration. For numbers exceeding one, the number is given to the left in red.
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Supplemental Figure 2. Neuron-dropping curves. Each curve represents the percentage of correct single-trial estimations of goal location as a function of the number of cells in each ensemble, averaged over the fixation period. A. Neurons selective for the previous goal yielded better estimations of previous goal locations (thick red lines) that of future goal locations (thin green lines). B. Cells selective for the future goals yielded better estimations of these locations (thick green lines) than of previous goal locations (thin red lines). C. Neuron-dropping curves for cells selective for both past and future goal (hybrids). Dashed horizontal lines show the chance level of estimation.
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Supplemental Figure 3. Population data in the format of Fig. 3, for a larger population.
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Supplemental Figure 4. Data for monkey 1 in the format of Fig. 10.
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Supplemental Figure 5. Lack of selectivity for the symbolic cue by neuron-dropping analysis during the Fix I period. The red lines show that cells with significant effects of cue by ANOVA, which occurred at about the frequency expected for false-positive results, showed poor estimations of which cues had appeared on the previous trials. For comparison, the black lines show different neuronal subpopulations of the same size (matched for each monkey), which showed good estimations of which location had been chosen on the previous trials.
