Wohlgemuth, Adolf, b. 1868 · Cambridge, University Press · leaf 121
of a point only. Let us next consider movement of a line, as would actually happen under the usual experimental conditions. It must be borne in mind that, as far as the retina is concerned, movement of a straight line must be taken as equivalent to movement at right angles to its length, as pointed… … Fig. 16. elements whose relative adjacent position on the retina is indicated in the diagram. A^, 2, 3, 4 are again the more central summation-cells in connexion with them, and 8-^, 2, 3, 4, " Schaltzellen," connecting adjacent neurones as before. Suppose then a stimulus to travel across the retina…