PSYC 100 Lecture Notes - Lecture 8: Color Vision, Visual Cortex, David H. Hubel

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 100
• Professor: A.George Alder

Document Summary

Area of the retina that contains rods/cones which when stimulated affects the firing of specific cells in visual cortex. Stimulation at centre increases when firing whereas firingtimulation off center inhibits firing. Occurs when neural activity in a cell opposes activity surrounding cells. Neurons that respond selectively to specific features of complex stimuli. Possible to select three different wavelengths of light to produce any colour. 3 colours must come from low/mid/high spectrum. Three different types of colour receptors in the retina each sensitive to specific colour. When a colour of something you"re looking at appears to change depending on background. After staring at something for so long start to see after colours. 3 channels (red vs green// yellow vs. blue // black vs. white) Both correct depending on what level you are looking at. Elements that are close to one another tend to be grouped together. Elements that are similar tend to be grouped together.