PSYC 2390 Chapter Notes - Chapter 3: David H. Hubel, Limulus, Retina

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

Document Summary

Introduction neural processing - the interaction of the signals of many neurons. Chevreul tried to show how placing colours side by side could alter their appearance. From a to b, the intensity is the same, and then from c to d, but the perception of lightness is not. There is a lightening at b at the border, and a darkening of c, which makes it look as if there is a dark band in between (chevreul illusion) Also called staircase illusion due to the change in intensities from a to b and c to. Mach bands - light and dark bands created at fuzzy borders. The gray ghost images in the intersections of the white areas of the grids. If we calculate lateral inhibition, we would add b, c, d, and e together to calculate a because it is in the centre of all 4, which is the inhibition, and subtract it by the initial response.