PSY 101 Lecture Notes - Lecture 4: Peripheral Vision, Color Vision, Visual Cortex
Document Summary
We take information from the world around us in through our sensory organs and translate it in our minds. Information in our brain creates the world: everything is a 1 or a 0 (on or off, your rods and cones are either activated or they aren"t for example. Sensation and perception are different: sensation: reception of energy from the environment, encoding into the nervous system, perception: interpreting and understanding information. Top-down v. bottom-up processing: top-down processing uses information we already know (models, ideas, expectations) in order to interpret information and form our perceptions, bottom-up processing takes sensory information and then assembles and integrates it. Perceptual set: establishes an expectation which then influences our perceptions. Effect of emotion and physical state on perception: destinations seem farther when you"re tired, targets look farther when your bow is heavier, a hill looks steeper with a heavy backpack or sad music playing.
