Figure 7.
Spatio-temporal dynamics snapshots of the dVm/dt in response to a moving bar 1 × 2°. (A) Appearing in the center of field of view at time 0 ms. Note the FF excitation establishing a moving bump at the area 19/21 border, the lateral spreading excitation from both mapping sites, the FB directed towards the cortical direction of motion 65.7–84.1 ms and the resulting excitation in the direction of cortical motion along the 17/18 border 96.4 ms, the lateral inhibition spreading behind the excitations mapping the moving object 108.6–127 ms. (B) Moving object appearing 10.5° from the center in the peripheral field of view. The mapping of the moving object enters the measurement area at 86.9 ms. FB from the 19/21 mapping site towards the 17/18 mapping site 99.8–118 ms, computation of an excitation in the cortical direction of motion 148.9 ms, progress towards the cortical zone mapping the center of field of view 317–334.8 ms associated with a new FF excitation towards the 19/21 border. As the object moves on the lateral spreading inhibition appears at the sites where the object was mapped along the 17/18 cytoarchitectural border.