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. 2010 Mar 8;107(12):5628–5633. doi: 10.1073/pnas.0909621107

Fig. 1.

Fig. 1.

Uniformity detectors (UDs) show maintained firing that is suppressed at light ON and light OFF and they have bistratified dendritic trees. (A) Extracellular recording of the spike responses of a UD to a light spot (Upper) and a dark spot (Lower) flashed in the receptive field; the light and dark bars show the 6-s duration of the flash. (B) Spike raster plots from 13 UDs in response to 3–5 trials of a flashing dark spot. (C) Average spike rate (± SD, gray shading) for the 13 raster plots. (D) Tracing of the dendritic morphology of a Neurobiotin-filled UD reconstructed from a confocal z series. (Scale bar: 50 μm.) Characteristically, some of the dendrites in the proximal ON sublamina of the inner plexiform layer (green) arise retroflexively from dendrites in the distal OFF sublamina (magenta). (E) Vertical projection of the same cell (white) showing the dendritic stratification in relation to strata 1–5 of the inner plexiform layer and the populations of starburst amacrine cells, labeled with an antibody against choline actyltransferase (ChAT, blue).