Chemical Basis of Neuronal Action Potentials Quiz
17 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which theory proposes that our experiences are represented by the pattern of firing across a large number of neurons?

  • Distributed representation
  • Connectionism
  • Population coding (correct)
  • Modularity

    • What is structural connectivity in the context of brain function?

  • The functional specialization of specific brain areas
  • The neural activity flowing through the structural network
  • The patterns distributed across the cortex
  • The road map of fibers connecting different areas of the brain (correct)

    • What is the main focus of the distributed representation approach to information processing in the brain?

  • The neural activity flowing through the brain's structural network
  • Patterns distributed across the cortex, involving multiple brain areas (correct)
  • Structural connections between brain areas
  • Functional connectivity in specific brain areas

    • Which concept is associated with the idea that specific brain areas are specialized to respond to specific types of stimuli or functions?

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

    What does research suggest is just as important for perception as the activity in each individual brain area alone?

    <p>Connections between brain areas</p> Signup and view all the answers

    What is the role of excitatory transmitters in the postsynaptic neuron?

    <p>Cause depolarization and increase the likelihood of an action potential</p> Signup and view all the answers

    What occurs when inhibitory transmitters are released in the postsynaptic neuron?

    <p>Cause hyperpolarization and decrease the likelihood of an action potential</p> Signup and view all the answers

    What is the function of neurotransmitters in synaptic transmission?

    <p>Received by the postsynaptic neuron on receptor sites</p> Signup and view all the answers

    What is sparse coding in the context of neuronal activity?

    <p>Occurs when a particular stimulus is represented by a pattern of firing of only a small group of neurons</p> Signup and view all the answers

    What happens when sodium ions cross the membranes of neurons?

    <p>Cause depolarization and increase the likelihood of an action potential</p> Signup and view all the answers

    What did Hartline discover about the receptive fields of ganglion cells?

    <p>They responded only when a small area of the retina was illuminated</p> Signup and view all the answers

    In what way do ganglion cell receptive fields differ from single photoreceptors?

    <p>Receptive fields cover a much greater area than a single photoreceptor</p> Signup and view all the answers

    What did Stephen Kuffler observe about ganglion cell receptive fields in cats that Hartline did not observe in frogs?

    <p>Center-surround receptive fields arranged like concentric circles</p> Signup and view all the answers

    How are ganglion cell receptive fields arranged, according to Stephen Kuffler's observations?

    <p>In a center-surround organization</p> Signup and view all the answers

    What occurs when stimulating a particular point on the retina in relation to ganglion cells' receptive fields?

    <p>It generally activates a number of fibers in the optic nerve</p> Signup and view all the answers

    How does the monitoring of the retina by ganglion cells compare to spectators at an event?

    <p>Many ganglion cells monitor the retina, just as there are many spectators at an event</p> Signup and view all the answers

    What property did ganglion cell receptive fields have, according to Stephen Kuffler's research?

    <p>'Center-surround' receptive fields</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser