Figure 1.

Complete STRF for a typical V1 neuron. STRFs described in this report are three-dimensional matrices with dimensions of time, SF, and orientation, as indicated by the schematic Inset. The complete STRF can be visualized as three sets of slices cut perpendicular to the cardinal axes. (a) Slices perpendicular to the time axis represent joint SF-orientation tuning at different response latencies. The color in each slice indicates the relative probability that each SF-orientation combination will elicit spikes at the indicated latency. (b) Slices perpendicular to the orientation axis represent the temporal evolution of SF tuning within a single orientation channel. (c) Slices perpendicular to the SF axis represent the temporal evolution of orientation tuning within a single SF channel. STRFs are depicted here by using a color map that spans the range ± max (|STRF|). cyc, cycles.