Image Processing in the Human Visual System, a Quick Overview
|
|
|
- Jesse Wood
- 5 years ago
- Views:
Transcription
1 Image Processing in the Human Visual System, a Quick Overview By Orazio Gallo, April 24th, 2008
2 The Visual System Our most advanced perception system: The optic nerve has 106 fibers, more than all the fibers inserting in the spine. The acoustic nerve has 30 x 103 fibers. In macaques almost 50% of the cortex is involved in vision, slightly less than that for humans.
3 The Retina is Part of the Central Nervous System The retina has the same neurotransmitters as the brain and stems directly from it.
4 The Retina is Part of the Central Nervous System
5 Why Three Types of Cones? Question: if we only had the R cones, would we be able to see an object and say with confidence if it is or it is not red?
6 Why Three Types of Cones? Question: if we only had the R cones, would we be able to see an object and say with confidence if it is or it is not red? NO!! The curves overlap so an intense blue light can stimulate an R cone as much as a faint red light! Color vision is NOT used to distinguish small details (multiple cones are required!)
7 Why Three Types of Cones?
8 The Retina
9 The Retina Signals are discrete (action potentials) only from the interneurons on! Neurons are roughly organized in 3 layers, receptors, interneurons, ganglion cells.
10 The Retina is an Active Sensor Contrast carries more information (e.g. contours of objects.) These cells help the higher systems to detect fast changes in pictures, particularly in lowcontrast conditions.
11 The Retina Different types of ganglion cells: M (magni): large receptive fields and sensitive to transient illumination (large objects and moving stimuli?) P (parvi): small receptive fields, tuned for particular wavelengths, more numerous (small objects and color vision?) Other (mostly unknown) types.
12 The Retina Bipolar, horizontal, and amacrine: Contribute to the creation of the ganglion's receptive fields. Bipolar (vertical pathway) are central, horizontal and amacrine (lateral pathway) are peripheral.
13 The Hermann Grid Illusion Explained
14 Central Vision Pathways
15 Central Vision Pathways The cells in the pretectal area receive information from the ganglion cells and control the pupillary reflex.
16 Central Vision Pathways The superior colliculus coordinates the head and the saccadic movements to direct the foveas towards the stimuli (it has access to information about sound localization and body position.) It also projects to the visual cortex (indirect pathway.)
17 Central Vision Pathways The Lateral Geniculate Nucleus (LGN) receives 90% of the fibers from the retina.
18 The LGN Six physically separated layers with circular, both on-center and off-center receptive fields. One magnocellular layer (movement and rought image characterization) and two parvocellular layers (details and shape + colors).
19 The Visual Cortex 17: V1 18: V2 19: V3 Brodmann (1905)
20 The Visual Cortex: V1 The on-center and off-center cells in the LGN are combined to form: Simple cells (edge detectors) Complex cells (line detectors)
21 The Visual Cortex: V1 Simple and complex cells are organized in columns and hyper-columns
22 What About Color? Chromatic opponence: R vs G, Y vs B, W vs B. A mix of V and B gives violet.. A mix of R and G gives yellow and all the traces of R and G are lost.
23 What About Color? The P ganglion cells in the retina and in the LGN:
24 What About Color? Double chromatic opponence: The margins of a gray object on a red background look greenish The margins of a gray object on a green background look reddish
25 What About Color? Double opponence cells in V1:
26 What About Color? Color constancy Colors are relatively constant to changes of illumination and spectral composition of the light
27 What About Color? In V1 the cells sensitive to color are organized in blobs. The receptive fields become more complex in terms of the combination of colors and the position of the afferent receptors.
28 What and Where Pathways The visual system has pathways that do concurrent processing (form, color, depth, and motion.) The dorsal pathway is the Where pathway The ventral pathway is the What pathway
29 Techniques for Analysis Single-cell recordings Auto-radiography Brain imaging: Computer Tomography (CT) Positron Emission Tomography (PET) Magnetic Resonance Imagery (MRI) Functional MRI
30 Techniques for Analysis Single-cell recordings Auto-radiography Brain imaging: Computer Tomography (CT) Positron Emission Tomography (PET) Magnetic Resonance Imagery (MRI) Functional MRI Show video from the Carandini lab
31 Techniques for Analysis Single-cell recordings Auto-radiography Brain imaging: Computer Tomography (CT) Positron Emission Tomography (PET) Magnetic Resonance Imagery (MRI) Functional MRI
32 Techniques for Analysis Single-cell recordings Auto-radiography Brain imaging: Computer Tomography (CT) Positron Emission Tomography (PET) Magnetic Resonance Imagery (MRI) Functional MRI From
33 Techniques for Analysis Single-cell recordings Auto-radiography Brain imaging: Computer Tomography (CT) Positron Emission Tomography (PET) Magnetic Resonance Imagery (MRI) Functional MRI From
34 Techniques for Analysis Single-cell recordings Auto-radiography Brain imaging: Computer Tomography (CT) Positron Emission Tomography (PET) Magnetic Resonance Imagery (MRI) Functional MRI From
35 Techniques for Analysis Single-cell recordings Auto-radiography Brain imaging: Computer Tomography (CT) Positron Emission Tomography (PET) Magnetic Resonance Imagery (MRI) Functional MRI From
36 Voltage-Sensitive Dye Imaging Benucci A., Frazor, R. A., and Carandini M. Standing Waves and Traveling Waves Distinguish Two Circuits in Visual Cortex, Neuron 2007
37 Voltage-Sensitive Dye Imaging Show prediction video courtesy of A. Benucci and M. Carandini
38 Thanks! Unless differently stated, the pictures are adapted from: Eric R. Kandel, James H. Schwartz, Thomas M. Jessell, Principles of Neuroscience, McGraw Hill, Stephen E. Palmer, Vision Science, Photons to Phenomenology, MIT press, The 3D picture of the brain in the top right corner of some slides is adapted from:
39 Backup Slide: A Neuron
Vision Seeing is in the mind
1 Vision Seeing is in the mind Stimulus: Light 2 Light Characteristics 1. Wavelength (hue) 2. Intensity (brightness) 3. Saturation (purity) 3 4 Hue (color): dimension of color determined by wavelength
Introduction to Physiological Psychology
Introduction to Physiological Psychology Vision ksweeney@cogsci.ucsd.edu cogsci.ucsd.edu/~ksweeney/psy260.html This class n Sensation vs. Perception n How light is translated into what we see n Structure
Senses are transducers. Change one form of energy into another Light, sound, pressure, etc. into What?
1 Vision 2 TRANSDUCTION Senses are transducers Change one form of energy into another Light, sound, pressure, etc. into What? Action potentials! Sensory codes Frequency code encodes information about intensity
Visual Physiology. Perception and Attention. Graham Hole. Problems confronting the visual system: Solutions: The primary visual pathways: The eye:
Problems confronting the visual system: Visual Physiology image contains a huge amount of information which must be processed quickly. image is dim, blurry and distorted. Light levels vary enormously.
Ch 5. Perception and Encoding
Ch 5. Perception and Encoding Cognitive Neuroscience: The Biology of the Mind, 2 nd Ed., M. S. Gazzaniga,, R. B. Ivry,, and G. R. Mangun,, Norton, 2002. Summarized by Y.-J. Park, M.-H. Kim, and B.-T. Zhang
Photoreceptors Rods. Cones
Photoreceptors Rods Cones 120 000 000 Dim light Prefer wavelength of 505 nm Monochromatic Mainly in periphery of the eye 6 000 000 More light Different spectral sensitivities!long-wave receptors (558 nm)
NEUROSCIENCE. Barbora Cimrová
NEUROSCIENCE Barbora Cimrová Neuroscience is the scientific study of the nervous system (NS) structure, organization, function of its parts and its functioning as a whole unit traditionally: branch of
Sensory Systems Vision, Audition, Somatosensation, Gustation, & Olfaction
Sensory Systems Vision, Audition, Somatosensation, Gustation, & Olfaction Sarah L. Chollar University of California, Riverside sarah.chollar@gmail.com Sensory Systems How the brain allows us to see, hear,
Lighta part of the spectrum of Electromagnetic Energy. (the part that s visible to us!)
Introduction to Physiological Psychology Vision ksweeney@cogsci.ucsd.edu cogsci.ucsd.edu/~ /~ksweeney/psy260.html Lighta part of the spectrum of Electromagnetic Energy (the part that s visible to us!)
Ch 5. Perception and Encoding
Ch 5. Perception and Encoding Cognitive Neuroscience: The Biology of the Mind, 2 nd Ed., M. S. Gazzaniga, R. B. Ivry, and G. R. Mangun, Norton, 2002. Summarized by Y.-J. Park, M.-H. Kim, and B.-T. Zhang
Vision II. Steven McLoon Department of Neuroscience University of Minnesota
Vision II Steven McLoon Department of Neuroscience University of Minnesota 1 Ganglion Cells The axons of the retinal ganglion cells form the optic nerve and carry visual information into the brain. 2 Optic
What do we perceive?
THE VISUAL SYSTEM Aditi Majumder What do we perceive? Example: Switch off the light in room What we perceive Not only the property of the scene But also that of the visual system Our perception is filtered
Neuroscience - Problem Drill 13: The Eye and Visual Processing
Neuroscience - Problem Drill 13: The Eye and Visual Processing Question No. 1 of 10 needed, (3) Pick the answer, and (4) Review the core concept tutorial as needed. 1. Which of the following statements
PSY 214 Lecture 5 (09/19/2010) (Vision) Dr. Achtman PSY 214. Lecture 5 Topic: Introduction to Vision Chapter 3, pages 55-71
Corrections: No corrections needed Announcements: After the completion of chapter 4 a movie will be shown First test is October 3, 2011 Dr. Achtman is available during her office hours The test will include
CS294-6 (Fall 2004) Recognizing People, Objects and Actions Lecture: January 27, 2004 Human Visual System
CS294-6 (Fall 2004) Recognizing People, Objects and Actions Lecture: January 27, 2004 Human Visual System Lecturer: Jitendra Malik Scribe: Ryan White (Slide: layout of the brain) Facts about the brain:
Construction of the Visual Image
Construction of the Visual Image Anne L. van de Ven 8 Sept 2003 BioE 492/592 Sensory Neuroengineering Lecture 3 Visual Perception Light Photoreceptors Interneurons Visual Processing Ganglion Neurons Optic
COGS 101A: Sensation and Perception
COGS 101A: Sensation and Perception 1 Virginia R. de Sa Department of Cognitive Science UCSD Lecture 5: LGN and V1: Magno and Parvo streams Chapter 3 Course Information 2 Class web page: http://cogsci.ucsd.edu/
Parallel streams of visual processing
Parallel streams of visual processing RETINAL GANGLION CELL AXONS: OPTIC TRACT Optic nerve Optic tract Optic chiasm Lateral geniculate nucleus Hypothalamus: regulation of circadian rhythms Pretectum: reflex
LISC-322 Neuroscience. Visual Field Representation. Visual Field Representation. Visual Field Representation. Visual Field Representation
LISC-3 Neuroscience THE VISUAL SYSTEM Central Visual Pathways Each eye sees a part of the visual space that defines its visual field. The s of both eyes overlap extensively to create a binocular. eye both
THE VISUAL WORLD! Visual (Electromagnetic) Stimulus
THE VISUAL WORLD! Visual (Electromagnetic) Stimulus Perceived color of light is determined by 3 characteristics (properties of electromagnetic energy): 1. Hue: the spectrum (wavelength) of light (color)
Reading Assignments: Lecture 5: Introduction to Vision. None. Brain Theory and Artificial Intelligence
Brain Theory and Artificial Intelligence Lecture 5:. Reading Assignments: None 1 Projection 2 Projection 3 Convention: Visual Angle Rather than reporting two numbers (size of object and distance to observer),
M Cells. Why parallel pathways? P Cells. Where from the retina? Cortical visual processing. Announcements. Main visual pathway from retina to V1
Announcements exam 1 this Thursday! review session: Wednesday, 5:00-6:30pm, Meliora 203 Bryce s office hours: Wednesday, 3:30-5:30pm, Gleason https://www.youtube.com/watch?v=zdw7pvgz0um M Cells M cells
The Eye. Cognitive Neuroscience of Language. Today s goals. 5 From eye to brain. Today s reading
Cognitive Neuroscience of Language 5 From eye to brain Today s goals Look at the pathways that conduct the visual information from the eye to the visual cortex Marielle Lange http://homepages.inf.ed.ac.uk/mlange/teaching/cnl/
eye as a camera Kandel, Schwartz & Jessel (KSJ), Fig 27-3
eye as a camera Kandel, Schwartz & Jessel (KSJ), Fig 27-3 retinal specialization fovea: highest density of photoreceptors, aimed at where you are looking -> highest acuity optic disk: cell-free area, where
OPTO 5320 VISION SCIENCE I
OPTO 5320 VISION SCIENCE I Monocular Sensory Processes of Vision: Color Vision Mechanisms of Color Processing . Neural Mechanisms of Color Processing A. Parallel processing - M- & P- pathways B. Second
THE VISUAL WORLD! Visual (Electromagnetic) Stimulus
THE VISUAL WORLD! Visual (Electromagnetic) Stimulus Perceived color of light is determined by 3 characteristics (properties of electromagnetic energy): 1. : the spectrum (wavelength) of light (color) 2.
LISC-322 Neuroscience Cortical Organization
LISC-322 Neuroscience Cortical Organization THE VISUAL SYSTEM Higher Visual Processing Martin Paré Assistant Professor Physiology & Psychology Most of the cortex that covers the cerebral hemispheres is
Biological Bases of Behavior. 6: Vision
Biological Bases of Behavior 6: Vision Sensory Systems The brain detects events in the external environment and directs the contractions of the muscles Afferent neurons carry sensory messages to brain
25/09/2012. Capgras Syndrome. Chapter 2. Capgras Syndrome - 2. The Neural Basis of Cognition
Chapter 2 The Neural Basis of Cognition Capgras Syndrome Alzheimer s patients & others delusion that significant others are robots or impersonators - paranoia Two brain systems for facial recognition -
Lateral Geniculate Nucleus (LGN)
Lateral Geniculate Nucleus (LGN) What happens beyond the retina? What happens in Lateral Geniculate Nucleus (LGN)- 90% flow Visual cortex Information Flow Superior colliculus 10% flow Slide 2 Information
Carlson (7e) PowerPoint Lecture Outline Chapter 6: Vision
Carlson (7e) PowerPoint Lecture Outline Chapter 6: Vision This multimedia product and its contents are protected under copyright law. The following are prohibited by law: any public performance or display,
Vision. The Eye External View. The Eye in Cross-Section
Vision The Eye External View cornea pupil iris The Eye in Cross-Section Light enters via cornea, Is focused by cornea and lens, Forming image on retina, Which contains photoreceptors. 1 The Retina Photoreceptors
Parallel processing strategies of the primate visual system
Parallel processing strategies of the primate visual system Parallel pathways from the retina to the cortex Visual input is initially encoded in the retina as a 2D distribution of intensity. The retinal
Seeing Color. Muller (1896) The Psychophysical Axioms. Brindley (1960) Psychophysical Linking Hypotheses
Muller (1896) The Psychophysical Axioms The ground of every state of consciousness is a material process, a psychophysical process so-called, to whose occurrence the state of consciousness is joined To
9.01 Introduction to Neuroscience Fall 2007
MIT OpenCourseWare http://ocw.mit.edu 9.01 Introduction to Neuroscience Fall 2007 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms. 9.01 Recitation (R02)
The Visual System. Cortical Architecture Casagrande February 23, 2004
The Visual System Cortical Architecture Casagrande February 23, 2004 Phone: 343-4538 Email: vivien.casagrande@mcmail.vanderbilt.edu Office: T2302 MCN Required Reading Adler s Physiology of the Eye Chapters
9.35 Sensation And Perception
MIT OpenCourseWare http://ocw.mit.edu 9.35 Sensation And Perception Spring 2009 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms. 9.35 Recitation 1 Eye
COGS 101A: Sensation and Perception
COGS 101A: Sensation and Perception 1 Virginia R. de Sa Department of Cognitive Science UCSD Lecture 7: Color (Chapter 6) Course Information 2 Class web page: http://cogsci.ucsd.edu/ desa/101a/index.html
The Visual System. Anatomical Overview Dr. Casagrande January 21, 2004
The Visual System Anatomical Overview Dr. Casagrande January 21, 2004 Phone: 343-4538 Email: vivien.casagrande@mcmail.vanderbilt.edu Office: T2302 MCN How the Brain Works Useful Additional Reading: Adler,
CNS-2: Physiology: Vision
CNS-2: Physiology: Vision The eyes are the windows to the soul This is the 3rd lecture in CNS-2 Physiology. In this lecture we will talk about one of our special senses, and that is the Vision. Hopefully
let's continue talking about the eye,
Eye is mainly composed of 3 layers: External layer, which called The Sclera which is a hard connective tissue that gives the eye its round shape. Extension of the sclera into the front is the cornea, which
Light passes through the lens, through the inner layer of ganglion cells and bipolar cells to reach the rods and cones. The retina
The visual system Light passes through the lens, through the inner layer of ganglion cells and bipolar cells to reach the rods and cones. The retina 0.5 mm thick The retina 0.5 mm thick The photosensors
The Basic Senses and What They Detect. Energy senses Vision (electromagnetic energy light waves)
The Basic Senses and What They Detect Energy senses Vision (electromagnetic energy light waves) LP 4B Color Perception 1 Hearing (sound waves) LP 4B Color Perception 2 Chemical senses Smell (airborne chemical
ASSUMPTION OF COGNITIVE UNIFORMITY
The Human Brain cerebral hemispheres: two most important divisions of the brain, separated by the longitudinal fissure corpus callosum: a large bundle of axons that constitutes the major connection between
Chapter 5 Test Review. Try the practice questions in the Study Guide and on line
Chapter 5 Test Review Try the practice questions in the Study Guide and on line Printing game plan Put six slides on a page Select pure black and white as the printing option Okay, now wade into the answers>>>>
SENSES: VISION. Chapter 5: Sensation AP Psychology Fall 2014
SENSES: VISION Chapter 5: Sensation AP Psychology Fall 2014 Sensation versus Perception Top-Down Processing (Perception) Cerebral cortex/ Association Areas Expectations Experiences Memories Schemas Anticipation
Required Slide. Session Objectives
Vision: CNS 2018 Required Slide Session Objectives Visual system: CNS At the end of this session, students will be able to: 1. Understand how axons from the eyes travel through the optic nerves and tracts
The Midget and Parasol Channels
The visual and oculomotor systems Peter H. Schiller, year 2006 The Midget and Parasol Channels MIDGET SYSTEM PARASOL SYSTEM or Neuronal response profile ON OFF ON OFF time Midget system cones ON OFF ON
PHY3111 Mid-Semester Test Study. Lecture 2: The hierarchical organisation of vision
PHY3111 Mid-Semester Test Study Lecture 2: The hierarchical organisation of vision 1. Explain what a hierarchically organised neural system is, in terms of physiological response properties of its neurones.
Definition Slides. Sensation. Perception. Bottom-up processing. Selective attention. Top-down processing 11/3/2013
Definition Slides 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
= add definition here. Definition Slide
= add definition here Definition Slide Definition Slides Sensation = the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment. Perception
Mr. Silimperi Council Rock High School South Chapter 5 Sensation Sensation II
Mr. Silimperi Council Rock High School South AP Psychology Name: Date: Chapter 5 Sensation Sensation II Psychophysics study of the relationship between physical characteristics of stimuli and our psychological
ID# Exam 1 PS 325, Fall 2001
ID# Exam 1 PS 325, Fall 2001 As always, the Skidmore Honor Code is in effect, so keep your eyes foveated on your own exam. I tend to think of a point as a minute, so be sure to spend the appropriate amount
Parallel pathways in the retina
Retinal origins of parallel pathways in the primate visual system Wednesday, September 23, 2015 Sherry, 2002 1 Parallel pathways in the retina Several different images of the outside world are sent simultaneously
Prof. Greg Francis 7/31/15
s PSY 200 Greg Francis Lecture 06 How do you recognize your grandmother? Action potential With enough excitatory input, a cell produces an action potential that sends a signal down its axon to other cells
1. The responses of on-center and off-center retinal ganglion cells
1. The responses of on-center and off-center retinal ganglion cells 2. Responses of an on-center ganglion cell to different light conditions 3. Responses of an on-center ganglion cells to different light
2/3/17. Visual System I. I. Eye, color space, adaptation II. Receptive fields and lateral inhibition III. Thalamus and primary visual cortex
1 Visual System I I. Eye, color space, adaptation II. Receptive fields and lateral inhibition III. Thalamus and primary visual cortex 2 1 2/3/17 Window of the Soul 3 Information Flow: From Photoreceptors
Sensation and Perception. A. Sensation: awareness of simple characteristics B. Perception: making complex interpretations
I. Overview Sensation and Perception A. Sensation: awareness of simple characteristics B. Perception: making complex interpretations C. Top-Down vs Bottom-up Processing D. Psychophysics -- thresholds 1.
7. Sharp perception or vision 8. The process of transferring genetic material from one cell to another by a plasmid or bacteriophage
1. A particular shade of a given color 2. How many wave peaks pass a certain point per given time 3. Process in which the sense organs' receptor cells are stimulated and relay initial information to higher
Visual System. By: Jordan Koehling
Visual System By: Jordan Koehling What is the Visual System Photoreceptors are the type of sensory neuron involved in sight. It is part of the CNS and allows us to see our surroundings using visual light
Image Formation and Phototransduction. By Dr. Abdelaziz Hussein Lecturer of Physiology
Image Formation and Phototransduction By Dr. Abdelaziz Hussein Lecturer of Physiology Vision Vision is a complex process through which an image of the external environment is formed on the photosensitive
C:\Documents and Settings\sstensaas\Desktop\dental visual 2010\VisualPath dental 2010.docVisualPath dental 2010.doc
Neuroanatomy Suzanne Stensaas April 8, 2010, 10:00-12:00 p.m. Reading: Waxman Ch. 15, Computer Resources: HyperBrain Ch 7 THE VISUAL PATHWAY Objectives: 1. Describe the pathway of visual information from
ID# Exam 1 PS 325, Fall 2003
ID# Exam 1 PS 325, Fall 2003 Read each question carefully and answer it completely. Pay careful attention to the point value of questions so that you allocate your time appropriately (1 point = 1 minute).
The Visual System. Chapter 3
Chapter 3 The Visual System Figure 3.1: Left: The visual system seen from underneath the brain showing the nerve fibres from the retina cross over to the opposite sides of the brain. A small part of the
Pathway from the eye to the cortex
Vision: CNS 2017 Pathway from the eye to the cortex Themes of this lecture Visual information is analyzed in more complicated ways than in the retina. One major pathway from the eye leads to the striate
THE VISUAL PATHWAY FOR DENTAL STUDENTS
Neuroanatomy Suzanne S. Stensaas, Ph.D. February 16, 2012 Objectives: THE VISUAL PATHWAY FOR DENTAL STUDENTS A. Draw the expected visual fields seen in classic lesions of the nerve, chiasm, thalamus, optic
The lowest level of stimulation that a person can detect. absolute threshold. Adapting one's current understandings to incorporate new information.
absolute threshold The lowest level of stimulation that a person can detect accommodation Adapting one's current understandings to incorporate new information. acuity Sharp perception or vision audition
Vision. Bởi: OpenStaxCollege
Vision Bởi: OpenStaxCollege Vision is the ability to detect light patterns from the outside environment and interpret them into images. Animals are bombarded with sensory information, and the sheer volume
Outline. Biological Psychology: Research Methods. Dr. Katherine Mickley Steinmetz
Biological Psychology: Research Methods Dr. Katherine Mickley Steinmetz Outline Neuroscience Methods Histology Electrophysiological Recordings Lesion Neuroimaging Neuroanatomy Histology: Brain structure
REVIEW QUESTIONS AND SAMPLE MIDTERM QUESTIONS FOR THE MIDTERM EXAM
REVIEW QUESTIONS AND SAMPLE MIDTERM QUESTIONS FOR THE MIDTERM EXAM REVIEW QUESTIONS Chapter 1 / Lecture 1 1. Diagram a neuron and label its components. In what ways are neurons specialized for communication?
Psych 333, Winter 2008, Instructor Boynton, Exam 2
Name: ID # ID: A Psych 333, Winter 2008, Instructor Boynton, Exam 2 Multiple Choice (38 questions, 1 point each) Identify the letter of the choice that best completes the statement or answers the question.
Neuroanatomy, Text and Atlas (J. H. Martin), 3 rd Edition Chapter 7, The Visual System, pp ,
Normal CNS, Special Senses, Head and Neck TOPIC: FACULTY: LECTURE: READING: RETINA and CENTRAL VISUAL PATHWAYS P. Hitchcock, Ph.D. Department Cell and Developmental Biology Kellogg Eye Center Friday, 20
The Central Nervous System
The Central Nervous System Cellular Basis. Neural Communication. Major Structures. Principles & Methods. Principles of Neural Organization Big Question #1: Representation. How is the external world coded
V1 (Chap 3, part II) Lecture 8. Jonathan Pillow Sensation & Perception (PSY 345 / NEU 325) Princeton University, Fall 2017
V1 (Chap 3, part II) Lecture 8 Jonathan Pillow Sensation & Perception (PSY 345 / NEU 325) Princeton University, Fall 2017 Topography: mapping of objects in space onto the visual cortex contralateral representation
STRUCTURAL ORGANIZATION OF THE NERVOUS SYSTEM
STRUCTURAL ORGANIZATION OF THE NERVOUS SYSTEM STRUCTURAL ORGANIZATION OF THE BRAIN The central nervous system (CNS), consisting of the brain and spinal cord, receives input from sensory neurons and directs
CNS 2 Physiology lab
It should be noted that the doctor emphasized that this material is also considered as continuation of the theory material and is INCLUDED IN THE THEORY EXAM. Presbiopia: is decrease in accommodation of
Psy393: Cognitive Neuroscience. Prof. Anderson Department of Psychology Week 3
Psy393: Cognitive Neuroscience Prof. Anderson Department of Psychology Week 3 The Eye: Proof for the existence of God? And then there was light Optics Perception Absorption Eye is receiver not sender Plato
Mind. Synopsis: Synopsis: Friday: Overview Perception Retina Central projections LGN (Visual Cortex)
We emphasize these points from Kandel in Bi/CNS 150 Bi/CNS/NB 150: Neuroscience Read Lecture Vision I October 28, 2015 Ralph Adolphs Chapter 26 & 27 Vision I (Adolphs) Overview of the visual system Anatomy:
Plasticity of Cerebral Cortex in Development
Plasticity of Cerebral Cortex in Development Jessica R. Newton and Mriganka Sur Department of Brain & Cognitive Sciences Picower Center for Learning & Memory Massachusetts Institute of Technology Cambridge,
COGS 107B. TA: Alexander Johnson Office Hours: Fridays Before Section 10am - 11:50 Mandeville Coffee Cart
COGS 107B TA: Alexander Johnson abj009@ucsd.edu Office Hours: Fridays Before Section 10am - 11:50 Mandeville Coffee Cart Week 3 Have covered so far (all on midterm): Neuron Doctrine & System Basics Somatosensory
Figure 4-1. Layers of the Neural Retina.
Chapter 4. The Neural Retina Basic Organization At one level the retina works like film in a camera: it records the optical image that is focused onto it by the cornea and lens, and relays this information
Methods of Visualizing the Living Human Brain
Methods of Visualizing the Living Human Brain! Contrast X-rays! Computerized Tomography (CT)! Magnetic Resonance Imaging (MRI)! Positron Emission Tomography (PET)! Functional MRI! Magnetoencephalography
The Perceptual Experience
Dikran J. Martin Introduction to Psychology Name: Date: Lecture Series: Chapter 5 Sensation and Perception Pages: 35 TEXT: Lefton, Lester A. and Brannon, Linda (2003). PSYCHOLOGY. (Eighth Edition.) Needham
Answer: B difficulty: 2 conceptual Goal 3: Critical Thinking Skills in Psychology
Chapter Test 1. The concepts of sensation and perception are different because a. perception is something that happens to your sense organs and neurons; sensation is something that happens to you b. sensation
11/23/17. Post receptoral pathways for color vision: How is colour coded? Colour Vision 2 - post receptoral
Colour Vision II: The post receptoral basis of colour vision and acquired color vision deficiencies Prof. Kathy T. Mullen McGill Vision Research (H4.14) Dept. of Ophthalmology kathy.mullen@mcgill.ca Colour
Test Bank Chapter 2: The Beginnings of Perception
Test Bank Chapter 2: The Beginnings of Perception MULTIPLE CHOICE 1. Our perception of the environment depends on a. the properties of the objects in the environment. b. the properties of the electrical
Will s Pre-Test for Exam IV
Will s Pre-Test for Exam IV 1) The brain and spinal cord comprise the. (a) autonomic nervous system (b) peripheral nervous system (c) central nervous system (d) efferent nervous system (e) afferent nervous
Color perception PSY 310 Greg Francis. Lecture 17. Importance of color
Color perception PSY 310 Greg Francis Lecture 17 Which cracker do you want to eat? For most people color is an integral part of living It is useful for identifying properties of objects e.g., ripe fruit
Morton-Style Factorial Coding of Color in Primary Visual Cortex
Morton-Style Factorial Coding of Color in Primary Visual Cortex Javier R. Movellan Institute for Neural Computation University of California San Diego La Jolla, CA 92093-0515 movellan@inc.ucsd.edu Thomas
Neural circuits PSY 310 Greg Francis. Lecture 05. Rods and cones
Neural circuits PSY 310 Greg Francis Lecture 05 Why do you need bright light to read? Rods and cones Photoreceptors are not evenly distributed across the retina 1 Rods and cones Cones are most dense in
CSE511 Brain & Memory Modeling. Lect21-22: Vision Central Pathways
CSE511 Brain & Memory Modeling CSE511 Brain & Memory Modeling Lect02: BOSS Discrete Event Simulator Lect21-22: Vision Central Pathways Chapter 12 of Purves et al., 4e Larry Wittie Computer Science, StonyBrook
Foundations. 1. Introduction 2. Gross Anatomy of the Eye 3. Simple Anatomy of the Retina
Foundations 2. Gross Anatomy of the Eye 3. Simple Anatomy of the Retina Overview Central and peripheral retina compared Muller Glial Cells Foveal Structure Macula Lutea Blood supply to the retina Degenerative
First Exam. Sensation and Perception. Process of Forming Sensations. Sensation and Perception. The Eye. Our perceptual experience. Mean = 57.
First Exam Sensation and Perception Mean = 57.5 SD = 11 Source of human knowledge Could we know anything without our senses? Empiricists - John Locke (1632-1704), all knowledge comes from sensory experience
Early Stages of Vision Might Explain Data to Information Transformation
Early Stages of Vision Might Explain Data to Information Transformation Baran Çürüklü Department of Computer Science and Engineering Mälardalen University Västerås S-721 23, Sweden Abstract. In this paper
Dikran J. Martin. Psychology 110. Name: Date: Making Contact with the World around Us. Principal Features
Dikran J. Martin Psychology 110 Name: Date: Lecture Series: Chapter 3 Sensation and Perception: Pages: 31 Making Contact with the World around Us TEXT: Baron, Robert A. (2001). Psychology (Fifth Edition).
Sensing and Perceiving Our World
PSYCHOLOGY: Perspectives & Connections 2 nd Edition GREGORY J. FEIST ERIKA L. ROSENBERG Sensing and Perceiving Our World Chapter Four Chapter Preview The Long Strange Trip From Sensation to Perception
ANAT2010. Concepts of Neuroanatomy (II) S2 2018
ANAT2010 Concepts of Neuroanatomy (II) S2 2018 Table of Contents Lecture 13: Pain and perception... 3 Lecture 14: Sensory systems and visual pathways... 11 Lecture 15: Techniques in Neuroanatomy I in vivo
The Integration of Features in Visual Awareness : The Binding Problem. By Andrew Laguna, S.J.
The Integration of Features in Visual Awareness : The Binding Problem By Andrew Laguna, S.J. Outline I. Introduction II. The Visual System III. What is the Binding Problem? IV. Possible Theoretical Solutions
Lecture overview. What hypothesis to test in the fly? Quantitative data collection Visual physiology conventions ( Methods )
Lecture overview What hypothesis to test in the fly? Quantitative data collection Visual physiology conventions ( Methods ) 1 Lecture overview What hypothesis to test in the fly? Quantitative data collection
Name Biology 125 Midterm #2 ( ) Total Pages: 9
Name - 1 - Biology 125 Midterm #2 (11-15-07) Part 1: (30 pts) Part 2: (40 pts) Part 3: (6 pts) Part 4: (12 pts) Part 5: (12 pts) Total Pages: 9 Total Score: (100 pts) 1 Name - 2 - Part 1: True or False.