PSY 102 Lecture Notes - Lecture 11: Lateral Geniculate Nucleus, Optic Chiasm, Cone Cell
Document Summary
Psy102: introduction to psychology (4) sensation and perception. Sensation the process of turning physical input (such as wavelengths of light) into the electro-chemical language of your nervous system. Perception the process of assigning meaning to that stimulation. The various lines, angles and shades of grey in this image provide you with many visual sensations. These sensations do not differ when you see the rabbit from when you see the duck. Visible" light forms just one part of the spectrum of electro- magnetic radiation. Wavelength the distance from one energy peak to another = colour. Intensity how much energy is transmitted = brightness. The first job of your eye is to control the amount of light entering the eye and focus it onto your retina. Light has to be focussed on your retina by the lens, which changes shape depending on whether you are looking at an object that is close to you or far away.
