Spatial summation of signals and adaptation by the surround response mechanism of cat retinal ganglion cells

Autor: Cohen, H. I., Christen, W. G., Winters, R. W.
Zdroj: Experimental Brain Research; October 1981, Vol. 44 Issue: 2 p207-212, 6p
Abstrakt: 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.
Databáze: Supplemental Index