neuroimaging- lecture 5
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Questions and Answers

What is a neural circuit in the brain?

  • A group of neurons that work together to process information. (correct)
  • A specific area of the brain responsible for emotional regulation.
  • A sequence of muscle movements coordinated by the brain.
  • A type of neurotransmitter that facilitates communication between neurons.
  • What is a microcircuit in the brain?

  • A small, localized network of neurons that processes specific information. (correct)
  • A large-scale network connecting different brain regions.
  • An electrical circuit used to study brain activity.
  • A type of brain scan that visualizes neural pathways.
  • What is a cortical neuron?

  • A type of neuron located in the brain's cortex responsible for processing sensory information. (correct)
  • A type of neuron found only in the spinal cord.
  • A type of neuron responsible for motor function in the limbs.
  • A type of neuron that connects between the cerebellum and the cerebral cortex.
  • How are cortical neurons organized?

    <p>In layers, each with distinct types of neurons</p> Signup and view all the answers

    What is the neocortex in the brain?

    <p>A part of the brain involved in higher-order brain functions such as sensory perception, cognition, and motor commands.</p> Signup and view all the answers

    What type of neurons are present in the neocortex?

    <p>Spiny neurons</p> Signup and view all the answers

    What is a spiny neurone?

    <p>A type of excitatory neuron characterized by spines on its dendrites</p> Signup and view all the answers

    What is a non-spiny neuron?

    <p>An inhbitory neuron that does not have dendritic spines.</p> Signup and view all the answers

    What type of signals do non-spiny neurons primarily receive?

    <p>Inhibitory signals- GABA</p> Signup and view all the answers

    What is electrophysiology?

    <p>The study of electrical properties of biological cells and tissues.</p> Signup and view all the answers

    What is an ephys ring?

    <p>A circular array of electrodes for in vivo recordings</p> Signup and view all the answers

    What is a tetrode?

    <p>A four-terminal device used in various electronic applications.</p> Signup and view all the answers

    What does a tetrode record?

    <p>Extracellular field potentials from nervous tissue</p> Signup and view all the answers

    What is a limitation of patch clamps?

    <p>They are not suitable for recordings from large populations of neurons and have a low spatial resolution.</p> Signup and view all the answers

    What is a calcium dye used for in neuroscience?

    <p>To measure intracellular calcium levels</p> Signup and view all the answers

    What is a radiometric calcium dye?

    <p>A dye used to measure calcium concentration in cells</p> Signup and view all the answers

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