Figure 2.

Predictions of binocular responses are illustrated schematically for neurons with and without pooling in the SF domain. A, Neuron without pooling in the SF domain. A neuron having only a single SF channel would show a circular response profile in the joint left-right SF domain. Monocular SF tunings are indicated by red curves on horizontal and vertical axes for left and right eyes, respectively. B, Predicted binocular response profile for a neuron with pooling in the SF domain. In this scheme, multiple subunits as shown in A but with different optimal SFs are pooled. The profile lies on the diagonal, because A17 neurons are generally tuned to similar SFs through either eye.