Let’s Get Visual!.

Slides:

Advertisements

Similar presentations

Color Vision: Sensing a Colorful World

Advertisements

Vision Our most dominant sense

Sensation and Perception Part 1: Intro and Vision.

Module 12 Vision.  Transduction  conversion of one form of energy to another  in sensation, transforming of stimulus energies into neural impulses.

The Visual System: The Structure of the Visual System Module 9: Sensation.

Vision – our most dominant sense. Vision Purpose of the visual system –transform light energy into an electro-chemical neural response –represent characteristics.

Sensation and Perception Sensations: take it in Sensations: take it in Perception: what we do with it Perception: what we do with it.

1. Provide an example of sensory adaptation. No longer hearing the buzzing of the projector.

The Visual System Dr. Kline FSU.

Mr. Koch AP Psychology Forest Lake High School

3.2 VISION 70% of your receptor cells are in your eyes taste and touch need direct contact where as sight and smell don’t Sight can be experienced from.

Table of Contents Chapter 4 Sensation and Perception.

The Visual System. The Nature of Light Electromagnetic Spectrum – An energy spectrum that includes X-rays, radar, and radio waves – A small portion of.

Myers EXPLORING PSYCHOLOGY Module 14 Introduction to Sensation and Perception: Vision James A. McCubbin, PhD Clemson University Worth Publishers.

.  Sensation: process by which our sensory receptors and nervous system receive and represent stimulus energy  Perception: process of organizing and.

Psychology, Ninth Edition in Modules David Myers PowerPoint Slides Aneeq Ahmad Henderson State University Worth Publishers, © 2010.

VISION From Light to Sight. Objective To describe how the receptor cells for vision respond to the physical energy of light waves and are located in the.

Do Now Try to label the diagram of the eye Use your textbook and the terms on the right to help you Optic nerve Pupil Lens Retina Vitreous Iris Cornea.

Sensation Vision The Eye Theories Hearing The Ear Theories Other Senses Smell Taste Pain Gestalt Principles Perceptual Constancies Perception Basic Principles.

Eye is the window to our soul. English physicist Sir Isaac Newton, in an experiment, observed that a ray of sunlight, or white light, was broken up into.

Let’s Get Visual!. What We See p. 125 Hue Visual experience specified by color names and related to the wavelength of light. Intensity Influences brightness.

Vision Structure of the Eye We only use light energy to see.

Chapter 6 Section 2: Vision. What we See Stimulus is light –Visible light comes from sun, stars, light bulbs, & is reflected off objects –Travels in the.

Perception Sisman LHHS Psychology. The Eye The structures of the eye from the diagram are as follows: –lens: focuses the image onto the retina –pupil:

VISION. Vision- Physical Properties of Waves Short wavelength=high frequency (bluish colors, high-pitched sounds) Long wavelength=low frequency (reddish.

The Eye. Energy v. Chemical senses Energy SensesChemical Senses.

The Visual System: The Structure of the Visual System Module 9: Sensation.

JHS AP Psychology Unit 4: Sensation, Perception Essential Task 4-2 :Describe the sensory process of vision including the specific nature of energy transduction.

The Visual System: The Structure of the Visual System.

Vision Most frequently studied sense Most information comes through eyes.

DO NOW. VisionVision Our most dominating sense. Visual Capture.

Vision Our most dominant sense. Our Essential Questions What are the major parts of the eye? How does the eye translate light into neural impulses?

Psychological dimensions:

Unit 4: Sensation & Perception

MODULE #13: VISION. Vision Transduction: transformation of stimulus energy (light, sound, smells, etc.) to neural impulses our brains can interpret. Our.

The Visual System: The Structure of the Visual System Module 9: Sensation.

Sensation. The process by which our sensory systems (eyes, ears, and other sensory organs) and nervous system receive stimuli from the environment A person’s.

Vision. The Eye and Vision It’s the most complex and most important sense for humans. The vision “system” transfers light waves into neural messages that.

The Visual Sense: Sight EQ: What is the process though which we see and how do we differentiate between different objects and types of motion?

The Visual System: The Structure of the Visual System

Transduction Transformation of stimulus energies to electrochemical energy of neural impulses Sensory receptors are responsible for transduction Rods and.

The Structure of the Visual System

THE VISUAL SYSTEM SENSE OF SIGHT.

Review: Vision.

Mr. Koch AP Psychology Forest Lake High School

THE VISUAL SYSTEM: ESSENTIALS OF SIGHT

Sensation and Perception

Chapter 5 Vision.

Rozi Xu & Daniil Kolesnikov

By Kamila Radjabova, Monami Waki, Tim Wang, and Yu Xin Zheng

Chapter 6 Sensation and Perception

Bell Work What occurs when experiences influence our interpretation of data? A. Selective attention B. Transduction C. Bottum-up processing D. Top-down.

Chapter 6 (C): Vision.

Perceptual Constancies

Defining Sensation and Perception

VISION Module 18.

Do Now Explain the purpose of rods and cones?

The Parts of the eye and vision

Sensation Information coming into our brain from our sensory receivers

Let’s Get Visual!.

Vision Our most dominating sense. Visual Capture.

Changing Light Waves to Neural Impulses

Vision. Vision Vision Our most dominating sense (Visual Capture). The eye is like a camera (it needs light).

Sensation & Perception

Vision Eye is the window to our soul.

(Do Now) Journal What is psychophysics? How does it connect sensation with perception? What is an absolute threshold? What are some implications of Signal.

Presentation transcript:

Let’s Get Visual!

Sensation & Perception 1/17/2019 What We See p. 125 Hue Visual experience specified by color names and related to the wavelength of light. Intensity Influences brightness and related to the amplitude of the light wave ©1999 Prentice Hall

Sensation & Perception 1/17/2019 An Eye on the World Cornea Protects eye and bends light toward lens. Lens Focuses on objects by changing shape. Iris Controls amount of light that gets into eye. Pupil Widens or dilates to let in more light. ©1999 Prentice Hall

Volunteer Time!!

The Structures of the Retina Sensation & Perception 1/17/2019 The Structures of the Retina Cones (Fewer) Rods (More) Near fovea Located in peripheral of the retina Responds to color Dark-adapted vision, scotopic More detail, higher resolution More sensitive to light, motion 127 ©1999 Prentice Hall

Do we see with our eyes or our brains? The Optical Spiral

Hubel & Wiesel’s Experiment Sensation & Perception 1/17/2019 Hubel & Wiesel’s Experiment Much visual processing is done in the brain. Feature Detectors p. 129 Some cortical cells respond to lines in specific orientations Other cells in the cortex respond to other shapes Much visual processing is done in the brain. Some cortical cells respond to lines in specific orientations (e.g. horizontal). Other cells in the cortex respond to other shapes (e.g., bulls-eyes, spirals, faces). Feature-detectors Cells in the visual cortex that are sensitive to specific features of the environment. ©1999 Prentice Hall

Sensation & Perception 1/17/2019 How We See Colors Young Helmholtz Trichromatic theory Opponent process theory Figure 5.04 from Wade, C., & Tavris, C. (2002). Invitation to Psychology, 2nd Ed. Upper Saddle River, NJ: Prentice Hall. ©1999 Prentice Hall

Sensation & Perception 1/17/2019 Trichromatic Theory Young (1802) & von Helmholtz (1852) both proposed that the eye detects 3 primary colors: red, blue, & green All other colors can be derived by combining these three. Figure 3.9 from: Kassin, S. (2001). Psychology, third edition. Upper Saddle River, NJ: Prentice Hall. ©1999 Prentice Hall

Opponent-Process Theory Sensation & Perception 1/17/2019 Opponent-Process Theory A competing theory of color vision, which assumes that the visual system treats pairs of colors as opposing or antagonistic. Opponent-Process cells are inhibited by a color, and have a burst of activity when it is removed. ©1999 Prentice Hall

What’s Happening? In the retina of your eyes, there are 3 types of color receptors (cones) that are most sensitive to either red, blue or green. When you stare at a particular color for too long, these receptors get "tired" or "fatigued." When you then look at the white background, the receptors that are tired do not work as well. Therefore, the information from all of the different color receptors is not in balance and you see the color "afterimages." You can see that you vision quickly returns to normal.

Test of Color Deficiency Sensation & Perception 1/17/2019 Test of Color Deficiency Figure 3.12 from: Kassin, S. (1998). Psychology, second edition. Upper Saddle River, NJ: Prentice Hall. ©1999 Prentice Hall