PSY 102 Lecture Notes - Lecture 5: Lateral Geniculate Nucleus, Optic Chiasm, Color Vision
Sensation: the process of turning physical input into the electro-chemical language of your nervous system. Perception: the process of assigning meaning to that stimulation. Wavelength: the distance from one energy peak to another= colour. Dark adaptation: the process through which you are gradually able to see more and more effectively in the dark. Visualagnosia: the inability to recognize certain classes of objects, often despite being able to see their form. Bottom up processing: taking sensory input and building up a recognizable image from the combination of lines, corners and colours. Top down processing: taking our knowledge, beliefs and expectations about the visual scene and using them to help construct a meaningful image. Visible light forms just one part of the spectrum of electromagnetic radiation. First job of eye is to control the amount of light entering and focus on your retina.