Intro, The Eye & Retina, Receptive Field, Visual Cortex
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Questions and Answers

What is the preferred orientation of simple cells?

  • Vertical bars (correct)
  • Diagonal bars
  • Horizontal bars
  • They do not have a preferred orientation

    • What is the preferred orientation of simple cells?

  • Horizontal
  • Vertical (correct)
  • Circular
  • Diagonal

    • What is the preferred orientation of simple cells?

  • Vertical (correct)
  • Circular
  • Diagonal
  • Horizontal

    • What is the primary focus of the PSYC11312 course?

    <p>The study of sensation and perception</p> Signup and view all the answers

    What is the characteristic of simple cells in the primary visual cortex?

    <p>They have a preferred orientation and respond best to it</p> Signup and view all the answers

    What is the response of ganglion cells measured in terms of?

    <p>Changes in firing rate</p> Signup and view all the answers

    What is the response of ganglion cells measured in terms of?

    <p>Firing rate</p> Signup and view all the answers

    What is the function of ganglion cells in the retina?

    <p>To detect edges and contrast</p> Signup and view all the answers

    What is the goal of experimenters measuring activity of ganglion cells in the retina?

    <p>To find a stimulus that changes the activity of ganglion cells</p> Signup and view all the answers

    What is the function of simple cells?

    <p>Edge detection</p> Signup and view all the answers

    What is the characteristic of orientation tuned neurons?

    <p>They have receptive fields</p> Signup and view all the answers

    How do experimenters measure the response of ganglion cells to a stimulus?

    <p>By measuring the frequency of action potentials</p> Signup and view all the answers

    What are the two types of photo-receptors discussed in the text?

    <p>Rods and cones</p> Signup and view all the answers

    What is the goal of experimenters when measuring the activity of ganglion cells?

    <p>To find a stimulus that changes the activity of ganglion cells</p> Signup and view all the answers

    What is the goal of experimenters when measuring the activity of ganglion cells?

    <p>To find a stimulus that changes the activity of the ganglion cell</p> Signup and view all the answers

    What is the goal of experimenters when studying ganglion cells in the retina?

    <p>To find a stimulus that changes the activity of the ganglion cell</p> Signup and view all the answers

    What is the reading for next week's lecture?

    <p>Goldstein chapter 4</p> Signup and view all the answers

    Which of the following is NOT a concept discussed in the text related to vision?

    <p>Neural stem cells</p> Signup and view all the answers

    What is the preferred orientation of simple cells?

    <p>Vertical bars</p> Signup and view all the answers

    What is the goal of experimenters measuring the activity of ganglion cells?

    <p>To find a stimulus that changes the activity of ganglion cells</p> Signup and view all the answers

    What are the two types of photo-receptors in the retina?

    <p>Rods and cones</p> Signup and view all the answers

    What is the course name and who is the instructor?

    <p>PSYC11312: Sensation and Perception, taught by Dr. Becky Champion</p> Signup and view all the answers

    What is the reading for next week's lecture?

    <p>Goldstein chapter 4</p> Signup and view all the answers

    What is the name of the course instructor?

    <p>Dr. Becky Champion</p> Signup and view all the answers

    What is the primary visual cortex responsible for?

    <p>Processing visual information</p> Signup and view all the answers

    What is the location of ganglion cells?

    <p>In the retina</p> Signup and view all the answers

    What is the course number and name for the lecture series?

    <p>PSYC11312: Sensation and Perception</p> Signup and view all the answers

    Which visual phenomena are discussed in relation to receptive fields, excitatory and inhibitory response, convergence, lateral inhibition, and center-surround antagonism?

    <p>The Hermann grid and simultaneous contrast illusion</p> Signup and view all the answers

    What is neural convergence?

    <p>The process by which multiple neurons in the retina converge to a single ganglion cell</p> Signup and view all the answers

    What is the Hermann grid illusion?

    <p>A visual phenomenon related to lateral inhibition</p> Signup and view all the answers

    What is the next week's topic in the lecture series?

    <p>Receptive fields</p> Signup and view all the answers

    What is the topic of next week's lecture?

    <p>Receptive fields</p> Signup and view all the answers

    What is the topic of next week's lecture?

    <p>Receptive fields</p> Signup and view all the answers

    What is the name of the primary visual cortex?

    <p>V1</p> Signup and view all the answers

    What is the current lecture's focus?

    <p>The brain's processing of complex visual stimuli</p> Signup and view all the answers

    What is the phenomenon related to center-surround antagonism in vision?

    <p>Simultaneous contrast illusion</p> Signup and view all the answers

    What is the course code for the Sensation and Perception course?

    <p>PSYC11312</p> Signup and view all the answers

    What are the two types of photo-receptors?

    <p>Rods and cones</p> Signup and view all the answers

    What is the current lecture focusing on?

    <p>The eye and retina</p> Signup and view all the answers

    What is the topic for next week's lecture?

    <p>Receptive fields</p> Signup and view all the answers

    What is the name of the course?

    <p>PSYC11312: Sensation and Perception</p> Signup and view all the answers

    What is the name of the course and who is the instructor?

    <p>PSYC11312: Sensation and Perception, taught by Dr. Becky Champion</p> Signup and view all the answers

    What are the two types of photo-receptors discussed in the text?

    <p>Rods and cones</p> Signup and view all the answers

    What is the reading for this week's lecture?

    <p>Goldstein chapter 3</p> Signup and view all the answers

    What are some of the concepts discussed in relation to vision?

    <p>Receptive fields and center-surround antagonism</p> Signup and view all the answers

    What is the relationship between an increase in the frequency of action potentials and the response of ganglion cells?

    <p>An increase in the frequency of action potentials indicates an increase in response</p> Signup and view all the answers

    What is the relationship between neural convergence and acuity?

    <p>Neural convergence decreases acuity</p> Signup and view all the answers

    What are the topics explored in the lecture series?

    <p>Sensation and perception</p> Signup and view all the answers

    What are the concepts discussed in relation to vision in the text?

    <p>Receptive fields, excitatory and inhibitory response, convergence, lateral inhibition, and center-surround antagonism</p> Signup and view all the answers

    What is the primary visual cortex responsible for?

    <p>Processing complex visual stimuli</p> Signup and view all the answers

    What are some of the topics explored in the lecture series?

    <p>Sensation and perception</p> Signup and view all the answers

    What is the role of simple cells in visual processing?

    <p>They detect edges and contrast</p> Signup and view all the answers

    What are some of the topics mentioned in the text related to the perceptual process?

    <p>Perception, recognition, and action</p> Signup and view all the answers

    What is the responsible visual area for processing complex visual stimuli?

    <p>Primary visual cortex</p> Signup and view all the answers

    What is the topic of next week's lecture?

    <p>Receptive fields</p> Signup and view all the answers

    What are the three different types of cells in V1?

    <p>Simple cells, complex cells, and hypercomplex cells</p> Signup and view all the answers

    What is the course instructor's name for the Sensation and Perception course?

    <p>Dr. Becky Champion</p> Signup and view all the answers

    What is a part of the perceptual process?

    <p>Attention</p> Signup and view all the answers

    What are the three types of cells in V1?

    <p>Simple, complex, and hypercomplex cells</p> Signup and view all the answers

    What is the topic of the article related to blurry vision at night?

    <p>The eye and retina</p> Signup and view all the answers

    Study Notes

    1. The text discusses the orientation selectivity of simple cells.
    2. Simple cells have a preferred orientation and respond best to it.
    3. They also respond to other similar orientations.
    4. Some simple cells have ON-center RFs and some have Off-center RFs.
    5. Some simple cells only have one excitatory and one inhibitory region.
    6. Simple cells are bar detectors and edge detectors.
    7. There are three different types of cells in V1.
    8. Orientation tuning is a characteristic of orientation tuned neurons.
    9. Simple cells have receptive fields.
    10. Some simple cells are tuned to vertical bars while others are tuned to 30-degree bars.
    • The text discusses measuring activity of ganglion cells in the retina.
    • Ganglion cells have baseline activity before any stimulus is applied.
    • Experimenters try to find a stimulus that changes the activity of the ganglion cell.
    • The response of the ganglion cell is measured in terms of action potentials.
    • An increase in the frequency of action potentials indicates an increase in response.
    • The activity of ganglion cells is measured over time.
    • Ganglion cells are located in the retina.
    • Baseline activity is already present in ganglion cells.
    • Action potentials are used to measure the response of ganglion cells.
    • The goal of experimenters is to find a stimulus that changes the activity of ganglion cells.
    • The text discusses the concepts of receptive fields, excitatory and inhibitory response, convergence, lateral inhibition, and center-surround antagonism in vision.
    • Ganglion cells in the retina respond to light through changes in firing rate.
    • The Hermann grid and simultaneous contrast illusion are examples of visual phenomena related to these concepts.
    • Next week's lecture will cover how the brain processes complex visual stimuli and the responsible visual areas.
    • The primary visual cortex is one such area.
    • The reading for this week's lecture is Goldstein chapter 3, and for next week's lecture, it is Goldstein chapter 4.
    • Questions for next week's lecture are provided.
    • The course is PSYC11312: Sensation and Perception, taught by Dr. Becky Champion.
    • The lecture series explores the topics of sensation and perception and their importance.
    • The current lecture focuses on the eye and retina.
    1. The text discusses the Perceptual Process.
    2. It includes concepts like the Eye, Retina, and Photo-receptors.
    3. The Photo-receptors include Rods and Cones.
    4. The text talks about the Sensitivity of these receptors.
    5. It also discusses Neural Convergence and Acuity.
    6. The next week's topic is Receptive Fields.
    7. The text talks about how Ganglion Cells select the mos.
    8. The article is related to blurry vision at night.
    9. Perception, Recognition, and Action are also mentioned.
    10. Knowledge is a part of the Perceptual Process.

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    Description

    Test your knowledge on various topics related to vision and perception with this quiz! From the orientation selectivity of simple cells to the perceptual process, this quiz covers a range of concepts such as ganglion cells, receptive fields, and neural convergence. Sharpen your understanding of sensitivity, acuity, and the different types of photo-receptors like rods and cones. Explore how the brain processes visual stimuli and learn about visual phenomena like the Hermann grid and simultaneous contrast illusion. Whether you're a psychology student

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