Fig. 3.
Neuron-dropping curves for object coding were equivalent for V1 and S1 neuronal ensembles. (A) Neuron-dropping curves for object classification in S1 and V1 using a naive Bayes binary classifier. Symbols on the right represent different animals: circle (Rat 4), square (Rat 5), triangle (Rat 9), and rhombus (Rat 12). (B) Parameters b and d of the double exponential fit of the neuron-dropping curves do not segregate according to cortical area. No statistically significant differences were found between V1 and S1 for both parameters (two-tailed Wilcoxon signed-rank test; ball: Pb = 0.6857 and Pd = 0.6857, brush: Pb =1.0 and Pd = 0.0571, urchin: Pb = 1.0 and Pd = 0.2, and food: Pb = 0.4857 and Pd = 0.6857 with α = 0.00625 corrected for eight comparisons). Same symbols are used as described in A.