Summary
The summing properties of the surround response mechanism of cat retinal ganglion cells were assessed by determining area-sensitivity and area-adaptation curves. The two curves were found to be similar for X and Y cells but for many Y cells adaptive sensitivity was found to be dependent upon the size of the test target. These results suggest that, for X cells, the retinal area over which the surround integrates signals and adaptation are spatially coextensive. Most Y cells appear to pool adaptive effects over a smaller region than they pool signals.
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Cohen, H.I., Christen, W.G. & Winters, R.W. Spatial summation of signals and adaptation by the surround response mechanism of cat retinal ganglion cells. Exp Brain Res 44, 207–212 (1981). https://doi.org/10.1007/BF00237342
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DOI: https://doi.org/10.1007/BF00237342