(A) Responses of several ganglion cell types to receding (red) and approaching (black) Gaussian textures. Average spike rate is shown across 50–200 distinct randomly generated textures. The gray …
Included is a data file containing a structure for the approach selectivity data in Figure 1.
(A) Model architecture. Center (left) and surround (right) regions of the receptive field were comprised of subunits. Subunits also exhibited center-surround receptive field structures based on …
(A) Normalized outputs of linear subunit models to 500 textures that either approached or receded at five different rates. Approaching and receding motion was not distinguishable at any rate for …
(A) Example approaching and receding textures. The same texture sequence was presented from highest-to-lowest spatial frequency (approaching) or lowest-to-highest spatial frequency (receding). …
(A) Stimulus paradigm for approaching and receding annuli. Annuli either rapidly increased in radius (approaching) or decreased in radius (receding). (B) Two-dimensional spatial receptive-field …
Included is a MATLAB file containing code used to generate a simplified coupling model.
Receptive-field models predict symmetrical responses to briefly presented annuli. (A) Average spike rate of an On parasol cell across a single cycle of a 2 Hz sinusoidally modulated spot at …
(A) Spike responses in an On parasol ganglion cell to receding (left) and approaching (middle) annuli presented at a series of contrasts. Right, Average spike rate during movement of receding (red) …
Included is a data file containing a structure for the approach selectivity data in annulusspikes.
Asymmetric response patterns to approaching and receding spots. (A) Spike responses in an On parasol ganglion cell to receding (left) and approaching (middle) spots presented at a series of …
(A) Excitatory synaptic currents measured in an On parasol ganglion cell to receding (left) and approaching (middle) annuli presented at a series of contrasts. Right, Excitatory charge during …
Included is a data file containing a structure for the approach selectivity data in currents.
Crossover inhibition contributes to approach motion selectivity in Off parasol cells. (A) Excitatory synaptic currents to receding (left) and approaching (middle) annuli at a series of contrasts. …