Figure 3.

Receptive fields of two MT cells with multiple preferred directions. The conventions in this figure are the same as in Figure 2A, the color wheel inset serves as a reminder of the mapping between direction and color (see Figure 1F). (A) This neuron preferred upward (yellow) and rightward (blue) motion in two adjacent regions of its RF (11,450 spikes; 15 min; L-ratio = 0.001). (B) This neuron preferred left and downward (purple) and upward (light green) motion in two adjacent regions of its RF (6413 spikes; 14.4 min; L-ratio = 0.057). These RF maps show that direction preference of neurons in MT depended on the location within the receptive field.