PDF-Perceptual Constancy Jonathan Cohen Our eyes deceive u

The rails appear to converge in the distance but we know that the rails are parallel We know that they are the same distance apart a mile down the track as they are where we are standing so the brain says The tracks only appear to converge because t. This module introduces two perceptual mapping methodologies: attribute rating and overall similarity.. Authors: Ron Wilcox and Stu James. © 2013 Ron Wilcox, Stu James and Management by the Numbers, Inc.. Eesha Sharma, MD. Sense organs. Receptor potential. Generator potential. Psychophysics. Gustav Theodor Fechner, 1860. Quantitative relationship between physical stimuli and the sensations and perceptions they effect. John Beech – School of Psychology. 2. Perception. Light, the eye & its pathways. Sound and the ear. The organisation of perception. 3. Properties of light. The properties of light (as a prelude to examining the eye). Baron Cohen, Wheelwright . et al.. (2001). Bellringer. Take out Baron-. Cohen study. Which word best describes how each person is thinking or feeling?. There are 9 pictures.. Ready?. Let’s go.. Which word best describes how this person is thinking or feeling?. Look closely at the illustration of a seal act for a circus in . the figure below. . What do you see?. Would you have seen it differently without the cue?. You may have identified a seal balancing a ball on its nose with its trainer on the right holding a fish in one hand and a stick in the other. . http://www.psychologie.tu-dresden.de/i1/kaw/diverses%20Material/www.illusionworks.com/index.html. The . Warped Chair.  by . Ibride. Perception. a process of . organizing and interpreting . sensory information, enabling us to recognize meaningful objects and events. Depth perception enables us to judge . distances.. Humans develop depth perception when they learn to crawl.. 1. Visual Cliff. Innervisions. Binocular Cues. Retinal disparity: . Images from the two eyes differ. . J.J. Cohen’s 7 Monster Theses. Cohen is a professor at George Washington University. Wrote a book about monster culture & monster literature. We will be using the introduction of this book to help ground some of our conversations about monsters in more academic language. Selective attention. Transduction. Bottom-up processing. Top-down processing. Signal detection . theory. Answer. d). Top-down processing. 2. What principle states that to be perceived as different, two stimuli must differ by a minimum percentage rather than a constant . Hue—. Dimension . of color that is determined by the wavelength of light; what we know as the color names . blue, green, . and so forth.. Intensity—. Amount . of energy in a light wave or sound wave, which influences what we perceive as brightness or loudness. Intensity is determined by the wave’s amplitude (height).. 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 . Perception. The process of . _________ . and . _________. . information, enabling us to recognize meaningful objects and events.. Stroop Effect. Color words that are written in a different color than the actual word. Candice Elam Rice, OD, FAAO. Lexington VAMC. Objectives. Review visual information processing. Types of deficits. Evaluation. Management. LGN. Relay center from retina to primary visual cortex. . Magnocellular layers . Our Eyes. If you look closely at your partner’s eyes, you will be able to see some of the parts of the eye. . Take a minute to describe with your partner what you can see.. Look Closely . We are going to find out about the parts of the eye that we can and can’t see, and the job that each part does. .