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. 2012 Jul 18;6:28. doi: 10.3389/fnana.2012.00028

Table 5.

Parameters for fitting our two-factor model for baboon neuron density.

Species Measurement Np Nnp a b c d e θ R2
Papio c. a. Neuron density 25 116 1.19 × 104 11.0 0.158 −0.846 0.206 −32.2° 0.84

In this model we discount the recorded density at primary sensory areas by a factor of (1 − e). Np is the number of data points from primary sensory areas and Nnp is the number of data points from non-primary areas. R2 is the coefficient of determination.