Direction-selective motion discrimination by traveling waves in visual cortex
Fig 9
Tuning curves for the spatial E-I-E model.
A: Temporal frequency tuning curve showing the maximal responses in Ue1 and Ue2 for stimulus gratings with temporal frequencies −40 < ft < 40 Hz where negative frequencies correspond to leftward motion. The spatial frequency of the grating is fixed at fx = 2.5 cycles/mm. B: Spatial frequency tuning curve showing the maximal responses to gratings with spatial frequencies 0 < fx < 15 cycles/mm. In this case the temporal frequency is fixed at ft = 15 Hz.