PPT-Light, Color & Perception

CMSC 435634 Light Electromagnetic wave E amp M perpendicular to each other amp direction Photon wavelength l frequency f c l Visbile l 380 nm blue to 720 nm red Photon energy q h f h c. :. a. increase. b. decrease. c. stay the same. d. first increase, then decrease. . 3. A . blind experimental design should be sufficient to eliminate:. a. placebo effects. b. experimenter effects. c. self-selection. AP Psychology. Ms. C. Fahey. We do not actually experience the world directly, but instead we experience it through a series of “filters” we call senses. . The study of these sense and their effect on our behavior is called . Vision. Do Now: . Pick up questions for video: Brain Games. Complete #1 . Sensation & Perception. Sensation and perception are areas that have been of interest to psychologists for most of the history of psychology. As we sit here, our senses receive literally thousands of messages. We need to make sense of this information. Our senses take in the information, and they do so from birth. Yet the interpretive part -perception- requires knowledge.. Perceptual constancy. Stimuli changes, object perceived to stay the same. In other words:. Image on retina . changes. , but brain perceives image as being constant/unchanging . Stimuli changes, but . Color Vision. :.  . The reason why humans perceive different colors in the environment is because of the manner in which the visual system processes various wavelength energy present in the environment.. Introduction. Sensation =. . stimulation of sense organs. . Perception = selection. , organization, and interpretation of sensory input. An Overview of Sensation to Perception. The Visual System: Essentials of Sight. Review worksheet. 1. . A light wave is an electromagnetic wave which has both an electric and magnetic . component associated . with it. Electromagnetic waves are often distinguished from mechanical waves. . 1. How do humans communicate with the world around them? . Humans . take in . information using their senses (. sight, hearing, touch, taste & smell. ) & . send out . information using their ability to . Eric King. Humans perceive color when light enters the eye and is detected by the photoreceptors, called cones, which are mainly located in the fovea. We have trichromatic color vision which means we have three different kinds of cones that detect a specific wavelength of light, namely short (blue), medium (green), and long (red). How we perceive color also depends on how dim or bright the light is. . Introduction. Sensation. The . process by which our sensory receptors and nervous system receive and represent stimulus energies from our . environment. Perception. The process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and . Sensation vs. Perception. Sensation:. a process by which our sensory receptors and nervous system receive and represent stimulus energy. Sensation is the raw data our brain takes in from the environment.. 6-8%. Module 16. Basic Concepts of Sensation and Perception. Learning Targets. 16-1. Describe . sensation. and . perception. , and explain the difference between . bottom-up processing and top-down processing. Black is the absence of light.. This font is black because no light is shining here. . The light shines all around it making white. . Mixing colors. By mixing different colors you can create new colors.. Processing. Cherdyntsev E.S.. What Is Perception?. We know that humans perceive data, but we are not as sure of how . we perceive. . . We . know that visualizations present data that is then perceived.