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 (A)</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. (A)</p> Signup and view all the answers

What type of neurons are present in the neocortex?

<p>Spiny neurons (A), Non-spiny neurons (C)</p> Signup and view all the answers

What is a spiny neurone?

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

What is a non-spiny neuron?

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

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

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

What is electrophysiology?

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

What is an ephys ring?

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

What is a tetrode?

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

What does a tetrode record?

<p>Extracellular field potentials from nervous tissue (A)</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. (B)</p> Signup and view all the answers

What is a calcium dye used for in neuroscience?

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

What is a radiometric calcium dye?

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

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