Chapter 5: Sensation and Perception
|
|
- Raymond Ramsey
- 5 years ago
- Views:
Transcription
1 Chapter 5: Sensation and Perception
2 All Senses have 3 Characteristics Sense organs: Eyes, Nose, Ears, Skin, Tongue gather information about your environment 1. Transduction 2. Adaptation 3. Sensation/Perception
3 Transduction When a sense organ changes or transforms physical energy into electrical signals example: A skunk s spray/molecules enters your nose, molecules get transformed into electrical signals/impulses. These signals get interpreted by your brain as unpleasant odor
4
5 Adaptation
6 Adaptation Example: Your skin will not feel your clothing once it adapts to them being on Some sense organs adapt quickly some more slowly depends on the intensity of the stimulation Will your senses eventually adapt to any stimulation despite intensity level? Yes or No and why???
7 Adaptation Your sense organs WILL NOT adapt to intense forms of stimulation if the stimulation will cause physical damage extreme heat or cold on your skin for example or
8 certain intensely harsh visuals
9 Sensation: Process in which the sense organs receptor cells are stimulated and relay information to brain centers for processing Example: Hearing a sound or seeing a light Perception: Process by which an organism selects and interprets sensory input so that it has meaning Example: Identifying the sound as a phone ringing or the light as a star
10 Sensation and Perception are linked to form the entire process through which we gain sensory input, convert it to electrochemical energy, and interpret the info so it makes sense organization, form, and meaning
11 Sensation vs. Perception Gathering info about the world takes 2 steps 1. Electrical signals reach the brain where they are turned into Sensations
12 Sensation vs. Perception Gathering info about the world takes 2 steps 2. The brain quickly changes sensations into perceptions
13 Perception Expectancy Do expectations affect our perception of the world around us?
14 seel whack dack
15 Perception Expectancy The expectations of what was upcoming affected how you perceived nonsense words and respond to questions.
16 Structures of the Eye
17 Explaining the Eye s Blind Spot The front of the eye acts like a camera lens, differently directing light rays from each point in space so as to create on the back of the eye a picture of the world. The picture falls on a sheet of photoreceptors (red in the diagram), specialized brain cells (neurons) which are excited by light.
18 Explaining the Eye s Blind Spot The sheet of photoreceptors is much like a sheet of film at the back of a camera. But it has a hole in it. At one location, called the optic nerve head, processes of neurons collect together and pass as a bundle through the photoreceptor sheet to form the optic nerve (the thick black line extending up and to the left in the diagram)
19 Explaining the Eye s Blind Spot The Optic Nerve carries information from the eye to the rest of the brain. At this location, there are no photoreceptors, and hence the brain gets no information from the eye about this particular part of the picture of the world. Because of this, you should have a "blind spot" (actually two, one for each eye), a place pretty much in the middle of what you can see where you can't see.
20 Image Reversal
21 Image Reversal Images need to be reversed so we can see objects much larger than the size of our pupil and so that we may have peripheral vision. Example: The Washington Monument
22
23 Psychophysics Study of the relationship between physical stimuli and a person s conscious experiences of them between Mind and Body This study usually begins with the study of Sensory Thresholds think of a threshold as a dividing line, a point where things become different such as a threshold for pain
24 No Pain Medication Needed Pain Threshold Reached Drug Me Now or Else
25 Absolute Threshold: Smallest strength of a stimulus that can be detected minimum level of stimulation necessary to excite a perceptual system such as vision Example: What is the minimum amount of light needed for a person to say that they see it?
26 Inattentional Blindness A person s inability to detect unexpected objects when intently focusing on other objects
27 Inattentional Blindness Research shows that when a person pays very close attention to an object/event other events/objects (that are unexpected) go unnoticed Example: Many airline pilots who have to pay attention to hundreds of dials and switches on the dash have struck other planes on the runway other PLANES these are not small objects. So what does this tell us?
28 Inattentional Blindness There is no such thing as Multi tasking Our brains can only do so much at one time we can only focus full attention on one thing Experiment on Multitasking
29 The Stroup Effect (Automatic Filtering) Your brain has a filter that causes you to miss large features in your environment automatic filtering of distractions (like the Penguin and the Jabberwokies). It s probably a good thing we do have it as it makes life a heck of a lot simpler. But can you think of a case where it would be better to have more conscious control over your attention s focus?
30 The Stroup Effect (Automatic Filtering) You will be shown a list of colored words; as they appear say the FONT color aloud as quickly as you can.
31 BLUE
32 YELLOW
33 PURPLE
34 GREEN
35 RED
36 Easy right? Now remember you re calling out the FONT color as fast as you can
37 BLUE
38 YELLOW
39 PURPLE
40 GREEN
41 RED
42 ORANGE
43 GRAY
44 PINK
45 The Stroup Effect (Automatic Filtering) This can take some people up to 50% longer to correctly identify and say the right color. This is a case where your brain s automatic functions interfere with your ability to perform.
46 The Stroup Effect (Automatic Filtering) The Stroup Effect relies on interfering signals in your brain that compete for your attention color is processed in a section of the brain called the Ventral Stream, while active reading takes place in the Temporal and Occipital Lobes. Your attention filter is unable to damper your brain s instinct to read the word itself and naming the font color becomes difficult.
47 Visual Perception Is Visual Perception always truthful? Does an object s size and shape change when it is moved farther away??? Is the Earth round or actually FLAT???
48 Visual Perception: Visual Spectrum Notice that your eyes only pick up a small amount of the light from the total electromagnetic spectrum
49 Size Constancy The size of an image on your retina gets LARGER or SMALLER as you move CLOSER to or FARTHER AWAY from an object
50 Size Constancy Due to our ability of our visual perception system, we recognize that objects remain constant in size regardless of the distance from the observer or the size of the image on our retina. 3 things make this happen: 1. Previous experience with the true sizes of objects 2. The distance between the object and the person 3. The presence of surrounding objects
51 Size Constancy As an object moves AWAY from the viewer, its perceived size does not change in relation to the that of the objects around it this is why knowing the size of surrounding objects helps us determine a perceived object s distance from us, as well as its actual size we judge an object s size by comparing it with surrounding objects.
52 Size Constancy
53 Size Constancy The center circles are actually both the same size, yet they appear to different because of their relationship to the surrounding circles. Our brain perceives the circle surrounded by larger circles as smaller, because it is smaller in relation to the surrounding circles. The opposite is true for the circle surrounded by smaller circles.
54 Size Constancy
55 Size Constancy Try this interactive site that shows/explains size constancy: htm
56 Shape Constancy The ability of our Visual Perceptual System to recognize a shape despite changes in its orientation or the angle from which it is viewed.
57 Shape Constancy A very different view of the same checkerboard; in both images the checkers are perceived as round and the board as square
58 Depth Perception Allows you to estimate your distance from an object and the distance between that object and another one. We also see in 3 dimensions: height, width, depth. Both monocular (using one eye) cues and binocular cues (using two eyes) are used in depth perception.
59 Depth Perception Are people with only one functioning eye able to: Land an airplane? Drive a car? Hit and catch a baseball? How can we prove or disprove this?
60 Depth Perception Stand up and cover one eye now walk around the room and avoid bumping into other objects
61 Depth Perception Linear Perspective is a monocular cue that arise from the stimulus itself; often seen in photos and paintings distant object appear to be closer together than nearer objects. A painter will show distance by making parallel lines converge as they recede
62 Depth Perception
63 Depth Perception Interposition is another monocular cue for depth; when one object blocks out a part of another, the first appears to be closer.
64 Optical Illusions When normal visual process and depth cues seem to break down, you experience an optical illusion, which is a perception of a physical stimulus that differs from measureable reality or from what is commonly expected. The Moon Illusion is a natural one; notice the actual size of the moon and the size of its image on the retina do not change, the moon seems about 30 50% larger when on the horizon vs. overhead
65 This image cannot currently be displayed. Optical Illusions
66 Optical Illusions How can optical illusions be explained? They have not been explained to date but there are theories some researchers say that some visual illusions have to do the with the object s background; that we have had prior experiences with specific stimuli and therefore our perceptions are well developed and constant when the moon is overhead, it is against a featureless background, but against the horizon, objects are closer to the moon. Objects in the landscape provide cues about distance that change our perception of the size of the moon.
67 Optical Illusions Muller Lyer Illusion (Read for explanation)
68 Optical Illusions
69 Optical Illusion Ponzo Illusion
70 Optical Illusions Ponzo Illusion (Read for explanation)
71 Optical Illusions Ouchi Illusion
72 Optical Illusions Ouchi Illusion
73 Optical Illusions Ames Room
74 Optical Illusions Ames Room
75 Optical Illusions Ames Room
76 Optical Illusions
Sensation and Perception
Sensation and Perception PSY 100: Foundations of Contemporary Psychology Basic Terms Sensation: the activation of receptors in the various sense organs Perception: the method by which the brain takes all
More informationPerception: From Biology to Psychology
Perception: From Biology to Psychology What do you see? Perception is a process of meaning-making because we attach meanings to sensations. That is exactly what happened in perceiving the Dalmatian Patterns
More informationUnit IV: Sensation & Perception. Module 19 Vision Organization & Interpretation
Unit IV: Sensation & Perception Module 19 Vision Organization & Interpretation Visual Organization 19-1 Perceptual Organization 19-1 How do we form meaningful perceptions from sensory information? A group
More informationSensation. Our sensory and perceptual processes work together to help us sort out complext processes
Sensation Our sensory and perceptual processes work together to help us sort out complext processes Sensation Bottom-Up Processing analysis that begins with the sense receptors and works up to the brain
More informationVision. Definition. Sensing of objects by the light reflected off the objects into our eyes
Vision Vision Definition Sensing of objects by the light reflected off the objects into our eyes Only occurs when there is the interaction of the eyes and the brain (Perception) What is light? Visible
More informationBeau Lotto: Optical Illusions Show How We See
Beau Lotto: Optical Illusions Show How We See What is the background of the presenter, what do they do? How does this talk relate to psychology? What topics does it address? Be specific. Describe in great
More informationOutline 2/21/2013. The Retina
Outline 2/21/2013 PSYC 120 General Psychology Spring 2013 Lecture 9: Sensation and Perception 2 Dr. Bart Moore bamoore@napavalley.edu Office hours Tuesdays 11:00-1:00 How we sense and perceive the world
More informationDetection of external stimuli Response to the stimuli Transmission of the response to the brain
Sensation Detection of external stimuli Response to the stimuli Transmission of the response to the brain Perception Processing, organizing and interpreting sensory signals Internal representation of the
More informationSensation and Perception
Page 94 Check syllabus! We are starting with Section 6-7 in book. Sensation and Perception Our Link With the World Shorter wavelengths give us blue experience Longer wavelengths give us red experience
More informationSensation and Perception. What We Will Cover in This Section. Sensation
Sensation and Perception Dr. Dennis C. Sweeney 2/18/2009 Sensation.ppt 1 What We Will Cover in This Section Overview Psychophysics Sensations Hearing Vision Touch Taste Smell Kinesthetic Perception 2/18/2009
More informationCHAPTER 4. Sensation & Perception. Lecture Overview. Introduction to Sensation & Perception PSYCHOLOGY PSYCHOLOGY PSYCHOLOGY. Understanding Sensation
CHAPTER 4 Sensation & Perception How many senses do we have? Name them. Lecture Overview Understanding Sensation How We See & Hear Our Other Senses Understanding Perception Introduction to Sensation &
More informationChapter 4 PSY 100 Dr. Rick Grieve Western Kentucky University
Chapter 4 Sensation and Perception PSY 100 Dr. Rick Grieve Western Kentucky University Copyright 1999 by The McGraw-Hill Companies, Inc. Sensation and Perception Sensation The process of stimulating the
More informationIII: Vision. Objectives:
III: Vision Objectives: Describe the characteristics of visible light, and explain the process by which the eye transforms light energy into neural. Describe how the eye and the brain process visual information.
More informationSensory and Perception. Team 4: Amanda Tapp, Celeste Jackson, Gabe Oswalt, Galen Hendricks, Harry Polstein, Natalie Honan and Sylvie Novins-Montague
Sensory and Perception Team 4: Amanda Tapp, Celeste Jackson, Gabe Oswalt, Galen Hendricks, Harry Polstein, Natalie Honan and Sylvie Novins-Montague Our Senses sensation: simple stimulation of a sense organ
More informationAP PSYCH Unit 4.2 Vision 1. How does the eye transform light energy into neural messages? 2. How does the brain process visual information? 3.
AP PSYCH Unit 4.2 Vision 1. How does the eye transform light energy into neural messages? 2. How does the brain process visual information? 3. What theories help us understand color vision? 4. Is your
More informationThinking About Psychology: The Science of Mind and Behavior 2e. Charles T. Blair-Broeker Randal M. Ernst
Thinking About Psychology: The Science of Mind and Behavior 2e Charles T. Blair-Broeker Randal M. Ernst Sensation and Perception Chapter Module 9 Perception Perception While sensation is the process by
More informationSENSATION AND PERCEPTION
http://www.youtube.com/watch?v=ahg6qcgoay4 SENSATION AND PERCEPTION THE DIFFERENCE Stimuli: an energy source that causes a receptor to become alert to information (light, sound, gaseous molecules, etc)
More informationPsychology in Your Life
Sarah Grison Todd Heatherton Michael Gazzaniga Psychology in Your Life FIRST EDITION Chapter 5 Sensation and Perception 2014 W. W. Norton & Company, Inc. Section 5.1 How Do Sensation and Perception Affect
More informationPSYCHOLOGY. Chapter 5 SENSATION AND PERCEPTION PowerPoint Image Slideshow
PSYCHOLOGY Chapter 5 SENSATION AND PERCEPTION PowerPoint Image Slideshow Sensation and Perception: What s the difference Sensory systems with specialized receptors respond to (transduce) various forms
More informationHW- Finish your vision book!
March 1 Table of Contents: 77. March 1 & 2 78. Vision Book Agenda: 1. Daily Sheet 2. Vision Notes and Discussion 3. Work on vision book! EQ- How does vision work? Do Now 1.Find your Vision Sensation fill-in-theblanks
More informationLecture Outline. Basic Definitions
Lecture Outline Sensation & Perception The Basics of Sensory Processing Eight Senses Bottom-Up and Top-Down Processing 1 Basic Definitions Sensation: stimulation of sense organs by sensory input Transduction:
More informationVision. Sensation & Perception. Functional Organization of the Eye. Functional Organization of the Eye. Functional Organization of the Eye
Vision Sensation & Perception Part 3 - Vision Visible light is the form of electromagnetic radiation our eyes are designed to detect. However, this is only a narrow band of the range of energy at different
More informationSensation & Perception
Sensation & Perception What is sensation & perception? Detection of emitted or reflected by Done by sense organs Process by which the and sensory information Done by the How does work? receptors detect
More informationSensation and Perception
Sensation v. Perception Sensation and Perception Chapter 5 Vision: p. 135-156 Sensation vs. Perception Physical stimulus Physiological response Sensory experience & interpretation Example vision research
More information:: Slide 1 :: :: Slide 2 :: :: Slide 3 :: :: Slide 4 :: :: Slide 5 :: :: Slide 6 ::
:: Slide 1 :: :: Slide 2 :: Sensation is the stimulation of the sense organs. Perception is the selection, organization, and interpretation of sensory input. Light waves vary in amplitude, that is, their
More informationLecture 8. Human Information Processing (1) CENG 412-Human Factors in Engineering May
Lecture 8. Human Information Processing (1) CENG 412-Human Factors in Engineering May 30 2009 1 Outline Visual Sensory systems Reading Wickens pp. 61-91 2 Today s story: Textbook page 61. List the vision-related
More informationModule 2. Lecture-1. Understanding basic principles of perception including depth and its representation.
Module 2 Lecture-1 Understanding basic principles of perception including depth and its representation. Initially let us take the reference of Gestalt law in order to have an understanding of the basic
More informationUnit 4: Sensation and Perception
Unit 4: Sensation and Perception What are the function of THERMORECPTORS? Thermoreceptors are responsible for the sensation of non-painful warmth or cold sensations. They have ion channels that change
More informationPerceptual Organization. Unit 3 RG 4e
Perceptual Organization Unit 3 RG 4e Modified PowerPoint from: Aneeq Ahmad -- Henderson State University. Worth Publishers 2007 Perceptual Illusions To understand how perception is organized, illusions
More informationVision Basics Measured in:
Vision Vision Basics Sensory receptors in our eyes transduce light into meaningful images Light = packets of waves Measured in: Brightness amplitude of wave (high=bright) Color length of wave Saturation
More informationSensation and Perception. Sensation. Sensory Receptors. Sensation. General Properties of Sensory Systems
Sensation and Perception Psychology I Sjukgymnastprogrammet May, 2012 Joel Kaplan, Ph.D. Dept of Clinical Neuroscience Karolinska Institute joel.kaplan@ki.se General Properties of Sensory Systems Sensation:
More informationRetina. Convergence. Early visual processing: retina & LGN. Visual Photoreptors: rods and cones. Visual Photoreptors: rods and cones.
Announcements 1 st exam (next Thursday): Multiple choice (about 22), short answer and short essay don t list everything you know for the essay questions Book vs. lectures know bold terms for things that
More informationThe Special Senses: Vision
OLLI Lecture 5 The Special Senses: Vision Vision The eyes are the sensory organs for vision. They collect light waves through their photoreceptors (located in the retina) and transmit them as nerve impulses
More informationIV: Visual Organization and Interpretation
IV: Visual Organization and Interpretation Describe Gestalt psychologists understanding of perceptual organization, and explain how figure-ground and grouping principles contribute to our perceptions Explain
More information11.5 The Senses Tuesday January 7, Wednesday, 8 January, 14
11.5 The Senses Tuesday January 7, 2014. TEST ON ALL OF HOMEOSTASIS (FOCUS ON REPRODUCTIVE AND NERVOUS SYSTEM) ON FRIDAY. Structure of the Eye Eye Anatomy and Function http://www.youtube.com/watch? v=0hzwmldldhi&feature=related
More informationVision. PSYCHOLOGY (8th Edition, in Modules) David Myers. Module 13. Vision. Vision
PSYCHOLOGY (8th Edition, in Modules) David Myers PowerPoint Slides Aneeq Ahmad Henderson State University Worth Publishers, 2007 1 Vision Module 13 2 Vision Vision The Stimulus Input: Light Energy The
More informationVision: Distance & Size Perception
Vision: Distance & Size Perception Useful terms: Egocentric distance: distance from you to an object. Relative distance: distance between two objects in the environment. 3-d structure: Objects appear three-dimensional,
More information1. What are the components of your nervous system? 2. How do telescopes and human eyes work?
Chapter 18 Vision and Hearing Although small, your eyes and ears are amazingly important and complex organs. Do you know how your eyes and ears work? Scientists have learned enough about these organs to
More informationChapter 6: Perception
Chapter 6: Perception Perception The organization and interpretation of our sensations. It is how we create meaning for what we see, touch, hear, feel and smell. Selective Attention: the idea that we are
More informationPerception. The process of organizing and interpreting information, enabling us to recognize meaningful objects and events.
Perception The process of organizing and interpreting information, enabling us to recognize meaningful objects and events. At any moment our awareness focuses, like a flashlight beam, on only
More informationVision. By: Karen, Jaqui, and Jen
Vision By: Karen, Jaqui, and Jen Activity: Directions: Stare at the black dot in the center of the picture don't look at anything else but the black dot. When we switch the picture you can look around
More informationP rcep e t p i t on n a s a s u n u c n ons n c s ious u s i nf n e f renc n e L ctur u e 4 : Recogni n t i io i n
Lecture 4: Recognition and Identification Dr. Tony Lambert Reading: UoA text, Chapter 5, Sensation and Perception (especially pp. 141-151) 151) Perception as unconscious inference Hermann von Helmholtz
More informationSensation and perception
Sensation and perception Definitions Sensation The detection of physical energy emitted or reflected by physical objects Occurs when energy in the external environment or the body stimulates receptors
More informationSlide 4 Now we have the same components that we find in our eye. The analogy is made clear in this slide. Slide 5 Important structures in the eye
Vision 1 Slide 2 The obvious analogy for the eye is a camera, and the simplest camera is a pinhole camera: a dark box with light-sensitive film on one side and a pinhole on the other. The image is made
More informationPerception. The process of organizing and interpreting information, enabling us to recognize meaningful objects and events.
Perception The process of organizing and interpreting information, enabling us to recognize meaningful objects and events. Perceptual Ideas Perception Selective Attention: focus of conscious
More informationThe Human Eye and a Camera 12.1
The Human Eye and a Camera 12.1 The human eye is an amazing optical device that allows us to see objects near and far, in bright light and dim light. Although the details of how we see are complex, the
More informationPsychology Study Guide Chapter 6
Psychology Study Guide Chapter 6 Sensation: process by which our sensory responses and nervous system receive and repeat stimulus from our environment. Perception: process organizing and interpreting sensory
More informationD) visual capture. E) perceptual adaptation.
1. Our inability to consciously perceive all the sensory information available to us at any single point in time best illustrates the necessity of: A) selective attention. B) perceptual adaptation. C)
More informationToday. Pattern Recognition. Introduction. Perceptual processing. Feature Integration Theory, cont d. Feature Integration Theory (FIT)
Today Pattern Recognition Intro Psychology Georgia Tech Instructor: Dr. Bruce Walker Turning features into things Patterns Constancy Depth Illusions Introduction We have focused on the detection of features
More informationThe Human Brain and Senses: Memory
The Human Brain and Senses: Memory Methods of Learning Learning - There are several types of memory, and each is processed in a different part of the brain. Remembering Mirror Writing Today we will be.
More informationSensation notices Various stimuli Of what is out there In reality
1 Sensation and Perception Are skills we need For hearing, feeling And helping us to see I will begin with A few definitions This way confusion Has some prevention Sensation notices Various stimuli Of
More informationVisual Effects of Light. Prof. Grega Bizjak, PhD Laboratory of Lighting and Photometry Faculty of Electrical Engineering University of Ljubljana
Visual Effects of Light Prof. Grega Bizjak, PhD Laboratory of Lighting and Photometry Faculty of Electrical Engineering University of Ljubljana Light is life If sun would turn off the life on earth would
More informationThe eye* The eye is a slightly asymmetrical globe, about an inch in diameter. The front part of the eye (the part you see in the mirror) includes:
The eye* The eye is a slightly asymmetrical globe, about an inch in diameter. The front part of the eye (the part you see in the mirror) includes: The iris (the pigmented part) The cornea (a clear dome
More informationPSY 310: Sensory and Perceptual Processes 1
Size perception PSY 310 Greg Francis Lecture 22 Why the cars look like toys. Our visual system is useful for identifying the properties of objects in the world Surface (color, texture) Location (depth)
More informationAS Psychology Activity 4
AS Psychology Activity 4 Anatomy of The Eye Light enters the eye and is brought into focus by the cornea and the lens. The fovea is the focal point it is a small depression in the retina, at the back of
More informationthe human chapter 1 Traffic lights the human User-centred Design Light Vision part 1 (modified extract for AISD 2005) Information i/o
Traffic lights chapter 1 the human part 1 (modified extract for AISD 2005) http://www.baddesigns.com/manylts.html User-centred Design Bad design contradicts facts pertaining to human capabilities Usability
More information12.1. Human Perception of Light. Perceiving Light
12.1 Human Perception of Light Here is a summary of what you will learn in this section: Focussing of light in your eye is accomplished by the cornea, the lens, and the fluids contained in your eye. Light
More informationPhysiology of Vision The Eye as a Sense Organ. Rodolfo T. Rafael,M.D. Topics
Physiology of Vision The Eye as a Sense Organ Rodolfo T. Rafael,M.D. www.clinicacayanga.dailyhealthupdates.com 1 Topics Perception of Light Perception of Color Visual Fields Perception of Movements of
More informationVision: How does your eye work? Student Advanced Version Vision Lab - Overview
Vision: How does your eye work? Student Advanced Version Vision Lab - Overview In this lab, we will explore some of the capabilities and limitations of the eye. We will look Sight at is the one extent
More informationChapter 5 Sensation and Perception
Chapter 5 Sensation and Perception Sensation is the conversion of energy from the environment into a pattern of responses by the nervous system. Perception is the interpretation of that information. Sensing
More informationChapter Six Chapter Six
Chapter Six Chapter Six Vision Sight begins with Light The advantages of electromagnetic radiation (Light) as a stimulus are Electromagnetic energy is abundant, travels VERY quickly and in fairly straight
More informationPerception. What We Will Cover in This Section. Perception. How we interpret the information our senses receive. Overview Perception
Perception 10/3/2002 Perception.ppt 1 What We Will Cover in This Section Overview Perception Visual perception. Organizing principles. 10/3/2002 Perception.ppt 2 Perception How we interpret the information
More informationSensation. What is Sensation, Perception, and Cognition. All sensory systems operate the same, they only use different mechanisms
Sensation All sensory systems operate the same, they only use different mechanisms 1. Have a physical stimulus (e.g., light) 2. The stimulus emits some sort of energy 3. Energy activates some sort of receptor
More informationSensation. Sensation. Perception. What is Sensation, Perception, and Cognition
All sensory systems operate the same, they only use different mechanisms Sensation 1. Have a physical stimulus (e.g., light) 2. The stimulus emits some sort of energy 3. Energy activates some sort of receptor
More informationGestalt Principles of Visual Perception
Gestalt Principles of Visual Perception Fritz Perls Father of Gestalt theory and Gestalt Therapy Movement in experimental psychology which began prior to WWI. We perceive objects as well-organized patterns
More informationUnit IV Sensation Perception
Unit IV Sensation Perception Module 16: Basic Principles of Sensation and Perception Module 17: Influences of Perception Module 18: Vision Module 19: Visual Organization and Interpretation Module 20: Hearing
More informationVision: How does your eye work? Student Version
Vision: How does your eye work? Student Version In this lab, we will explore some of the capabilities and limitations of the eye. We will look Sight is one at of the extent five senses of peripheral that
More informationVisual Effects of. Light. Warmth. Light is life. Sun as a deity (god) If sun would turn off the life on earth would extinct
Visual Effects of Light Prof. Grega Bizjak, PhD Laboratory of Lighting and Photometry Faculty of Electrical Engineering University of Ljubljana Light is life If sun would turn off the life on earth would
More informationCognition and Perception
Cognition and Perception 2/10/10 4:25 PM Scribe: Katy Ionis Today s Topics Visual processing in the brain Visual illusions Graphical perceptions vs. graphical cognition Preattentive features for design
More informationWhy is blue tinted backlight better?
Why is blue tinted backlight better? L. Paget a,*, A. Scott b, R. Bräuer a, W. Kupper a, G. Scott b a Siemens Display Technologies, Marketing and Sales, Karlsruhe, Germany b Siemens Display Technologies,
More informationVision. The eye. Image formation. Eye defects & corrective lenses. Visual acuity. Colour vision. Lecture 3.5
Lecture 3.5 Vision The eye Image formation Eye defects & corrective lenses Visual acuity Colour vision Vision http://www.wired.com/wiredscience/2009/04/schizoillusion/ Perception of light--- eye-brain
More informationChapter 4. Sensation and Perception 8 th Edition
Chapter 4 Sensation and Perception 8 th Edition Sensation and Perception: The Distinction Sensation : stimulation of sense organs Perception: selection, organization, and interpretation of sensory input
More informationVisual Perception. human perception display devices. CS Visual Perception
Visual Perception human perception display devices 1 Reference Chapters 4, 5 Designing with the Mind in Mind by Jeff Johnson 2 Visual Perception Most user interfaces are visual in nature. So, it is important
More informationiris pupil cornea ciliary muscles accommodation Retina Fovea blind spot
Chapter 6 Vision Exam 1 Anatomy of vision Primary visual cortex (striate cortex, V1) Prestriate cortex, Extrastriate cortex (Visual association coretx ) Second level association areas in the temporal and
More informationBiology 9 Senses Lab
Biology 9 Senses Lab Objectives: To understand the anatomy and physiology of several of our senses both through observation and by means of some simple experiments and examinations. PART 1: The Eye 1.
More informationSeeing and Perception. External features of the Eye
Seeing and Perception Deceives the Eye This is Madness D R Campbell School of Computing University of Paisley 1 External features of the Eye The circular opening of the iris muscles forms the pupil, which
More informationName: Hour BE ABLE TO LABEL AN EYE
Quarter 2: Quiz 3 STUDY GUIDE The scientific method. Measurement system - - metric Metric 1. The metric system is a decimal system of measurement scaled on multiples of 10. OR BASE TEN 1. Types of measure:
More information2. How does the brain cope with the blind spot? What does the author mean when he says that brain is hallucinating?
NAME: Read Camels and Cops and answer the following: 1. What is the optic disk? 2. How does the brain cope with the blind spot? What does the author mean when he says that brain is hallucinating? 3. Explain
More informationHandout 1: Color Survey
Handout : Color Survey Have you ever thought about whether everyone sees colors in the same way? Here s your chance to find out! Your teacher will display crayons or slides. Categorize each of the 5 colors
More informationsclera pupil What happens to light that enters the eye?
Human Vision Textbook pages 202 215 Before You Read Some people can see things clearly from a great distance. Other people can see things clearly only when they are nearby. Why might this be? Write your
More informationIntroduction to Psychology Prof. Braj Bhushan Department of Humanities and Social Sciences Indian Institute of Technology, Kanpur
Introduction to Psychology Prof. Braj Bhushan Department of Humanities and Social Sciences Indian Institute of Technology, Kanpur Lecture - 10 Perception Role of Culture in Perception Till now we have
More informationWhat you see is not what you get. Grade Level: 3-12 Presentation time: minutes, depending on which activities are chosen
Optical Illusions What you see is not what you get The purpose of this lesson is to introduce students to basic principles of visual processing. Much of the lesson revolves around the use of visual illusions
More informationLecture 4 Foundations and Cognitive Processes in Visual Perception From the Retina to the Visual Cortex
Lecture 4 Foundations and Cognitive Processes in Visual Perception From the Retina to the Visual Cortex 1.Vision Science 2.Visual Performance 3.The Human Visual System 4.The Retina 5.The Visual Field and
More informationCAN WE BELIEVE OUR OWN EYES?
Reading Practice CAN WE BELIEVE OUR OWN EYES? A. An optical illusion refers to a visually perceived image that is deceptive or misleading in that information transmitted from the eye to the brain is processed
More informationChapter 4: Sensation & Perception
Chapter 4: Sensation & Perception 30? ThEcOwgAvecOla TheCowGaveCola rat eht saw tac eht The cat saw the rat The cat was the rat The cat was the tar Stimulation of sensory receptors and the transmission
More informationRefraction, Lenses, and Prisms
CHAPTER 16 14 SECTION Sound and Light Refraction, Lenses, and Prisms KEY IDEAS As you read this section, keep these questions in mind: What happens to light when it passes from one medium to another? How
More informationHigh Touch High Tech
Vision and Perception Games Supplies: Print out of Muller-Lyer Illusion handout Print out of Vision Perception handout Color print out of Afterimage handout Color print out of Movement Illusion handout
More informationCOPYRIGHTED MATERIAL. Overview
In normal experience, our eyes are constantly in motion, roving over and around objects and through ever-changing environments. Through this constant scanning, we build up experience data, which is manipulated
More informationChapter 5: Color vision remnants Chapter 6: Depth perception
Chapter 5: Color vision remnants Chapter 6: Depth perception Lec 12 Jonathan Pillow, Sensation & Perception (PSY 345 / NEU 325) Princeton University, Fall 2017 1 Other types of color-blindness: Monochromat:
More informationAllen, E., & Matthews, C. (1995). It's a Bird! It's a Plane! It's a... Stereogram! Science Scope, 18 (7),
It's a Bird! It's a Plane! It's a... Stereogram! By: Elizabeth W. Allen and Catherine E. Matthews Allen, E., & Matthews, C. (1995). It's a Bird! It's a Plane! It's a... Stereogram! Science Scope, 18 (7),
More informationLife Science Chapter 2 Study Guide
Key concepts and definitions Waves and the Electromagnetic Spectrum Wave Energy Medium Mechanical waves Amplitude Wavelength Frequency Speed Properties of Waves (pages 40-41) Trough Crest Hertz Electromagnetic
More informationCOPYRIGHTED MATERIAL OVERVIEW 1
OVERVIEW 1 In normal experience, our eyes are constantly in motion, roving over and around objects and through ever-changing environments. Through this constant scanning, we build up experiential data,
More informationDigital Image Processing
Part 1: Course Introduction Achim J. Lilienthal AASS Learning Systems Lab, Dep. Teknik Room T1209 (Fr, 11-12 o'clock) achim.lilienthal@oru.se Course Book Chapters 1 & 2 2011-04-05 Contents 1. Introduction
More informationSensation and perception. Sensation The detection of physical energy emitted or reflected by physical objects
Sensation and perception Definitions Sensation The detection of physical energy emitted or reflected by physical objects Occurs when energy in the external environment or the body stimulates receptors
More informationLearning Targets. Module 19
Learning Targets Module 19 Visual Organization and Interpretation 19-1 Describe the Gestalt psychologists understanding of perceptual organization, and explain how figure-ground and grouping principles
More informationYokohama City University lecture INTRODUCTION TO HUMAN VISION Presentation notes 7/10/14
Yokohama City University lecture INTRODUCTION TO HUMAN VISION Presentation notes 7/10/14 1. INTRODUCTION TO HUMAN VISION Self introduction Dr. Salmon Northeastern State University, Oklahoma. USA Teach
More informationVisual System I Eye and Retina
Visual System I Eye and Retina Reading: BCP Chapter 9 www.webvision.edu The Visual System The visual system is the part of the NS which enables organisms to process visual details, as well as to perform
More informationUnit 4. Sensation and. Perception. 6-8% (7-9% in past) College Board - Acorn Book Course Description. Unit IV. Sensaton and.
Unit 4. Sensation and College Board - Acorn Book Course Description 6-8% (7-9% in past) Overview A. Thresholds B. Sensory Mechanisms C. Attention D. Perceptual Processes A. Thresholds Threshold Absolute
More informationHuman Vision. Human Vision - Perception
1 Human Vision SPATIAL ORIENTATION IN FLIGHT 2 Limitations of the Senses Visual Sense Nonvisual Senses SPATIAL ORIENTATION IN FLIGHT 3 Limitations of the Senses Visual Sense Nonvisual Senses Sluggish source
More informationChapter 2: The Beginnings of Perception
Chapter 2: The Beginnings of Perception We ll see the first three steps of the perceptual process for vision https:// 49.media.tumblr.co m/ 87423d97f3fbba8fa4 91f2f1bfbb6893/ tumblr_o1jdiqp4tc1 qabbyto1_500.gif
More information