PSYC 2390 Lecture Notes - Lecture 7: Ganglion, Myelin, Neural Coding

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2390
• Professor: Lana Trick

Document Summary

Convergence: 126m 1m, amacrine, bipolar, horizontal cells, retinal ganglion cells. White has lots of light, black has very little/none. Seeing discontinuities in brightness (abrupt changes) edges of objects: seeing these outlines (diferences in brightness) is how we recognize objects, without this, we couldn"t distinguish an object from it"s background. Acuity the accuracy and ability to see ine detail: visual-motor coordination, object recognition. Dark points at the intersections of the lines do not physically exist. Grey square on the white square looks darker: white produces more inhibition compared to black (doesn"t give much inhibition) Area on the retina that the cell will respond to. Rods and cones have photochemicals and you can see the cell change colour so you know where it"s responding to on the retina. If something is not in the cell"s receptive ield, light will create spontaneous activity cell isn"t responding/interested in that part of the retina.