Supplementary Figure 6: Effects of optogenetic stimulation as a function of space and of stimulus contrast
From: Distal connectivity causes summation and division across mouse visual cortex
(a) Averaged normalized response for all units with significant activation or suppression in the far MZ (55–95° eccentricity, n = 103 units). Responses are scaled relative to r100. (b) Average of 41 units in the near MZ (30–55°). Scaling is relative to r25, as 25% contrast is the stimulus condition included in all experiments. (c) Average of 15 units in BZ (0–30°). These neurons were located in the deep layers, so they were not antidromically activated. Scaling is relative to the peak firing rate in response to callosal stimulation at 0% contrast. Different units had different peak time, resulting in a smaller peak than 100%.
