Before revision:  Results show that (1) the proposed estimator is consistent with theoretical predictions for total correlation, ( 2 ) the capacity increases substantially along the layers of the model, and (3) the capacity of the cortical representation follows the PDF of natural scenes over the chromatic and achromatic dimensions of the stimulus space .
After revision:  Results show that (1) the proposed estimator is consistent with predictions based on the analytical Jacobian of a standard spatio-chromatic model of the retina-cortex pathway. If the noise at certain representation is proportional to the dynamic range of the response, and one assumes sensors of equivalent noise level, transmitted information shows the following trends: (1) progressively deeper representations are better in terms of the amount of information about the input, ( 2 ) the capacity increases substantially along the layers of the model, and (3) the capacity of the cortical representation follows the PDF of natural scenes over the chromatic and achromatic dimensions of the stimulus space .