Neuroscience Techniques for Neurophysiology lecture 6
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Questions and Answers

What is a technique used to determine long distance neuronal connections?

  • Neuronal tracing (correct)
  • Microdialysis
  • Immunofluorescence
  • Western blotting

    • What is anterograde tracing?

  • A technique that tracks the pathway of neural connections from the cell body to synapses (correct)
  • A method to visualize blood flow in the brain.
  • A technique for measuring electrical activity of neurons.
  • A method to observe the movement of neurotransmitters across synapses.

    • What is retrograde tracing in neuroscience?

  • A method to trace neural connections from source to termination (cell to synapse)
  • A technique used to study neuronal activity in real-time
  • A method to trace neural connections from termination to source (synapse to cell) (correct)
  • A procedure for isolating neurotransmitters from brain tissue samples

    • Which of these tracers are used in neuroanatomy? (Select all that apply)

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

    What is an EEG?

    <p>A method for measuring electrical activity of the brain.</p> Signup and view all the answers

    What does EEG stand for?

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

    What are the two types of resolution in neuroscience techniques?

    <p>Temporal and Spatial</p> Signup and view all the answers

    What do temporal and spatial resolution mean in terms of neuroscience?

    <p>Temporal resolution refers to the ability to distinguish events in time, while spatial resolution refers to the ability to distinguish locations in space.</p> Signup and view all the answers

    How does an EEG (Electroencephalogram) work?

    <p>It records brain activity by detecting electrical impulses through electrodes placed on the scalp.</p> Signup and view all the answers

    What does an EEG show in terms of oscillations?

    <p>Brain wave patterns at different frequencies</p> Signup and view all the answers

    Which wave has the highest frequency?

    <p>Gamma Rays</p> Signup and view all the answers

    What are beta waves associated with in the context of brain activity?

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

    What are brain-machine interfaces?

    <p>Devices that allow direct communication between the brain and external devices.</p> Signup and view all the answers

    What does ECoG stand for?

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

    What kind of patients is ECoG specifically used for?

    <p>Patients with epilepsy</p> Signup and view all the answers

    Which technique has better spatial resolution, ECG or ECoG?

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

    What is the local field potential?

    <p>The average electrical potential of a large population of neurons within a specific area.</p> Signup and view all the answers

    Which is more localized, ECoG or local field potentials?

    <p>Local field potentials</p> Signup and view all the answers

    What is a visual evoked potential?

    <p>A measurement of brain responses to visual stimuli- record activity in occipital lobe and a flash of light will show a characteristic result</p> Signup and view all the answers

    What is a peripheral non-invasive technique for perturbing the CNS?

    <p>Electrical activation of axons in the nerve</p> Signup and view all the answers

    What is an example of mechanical perturbation of the CNS?

    <p>Knee jerk reflex</p> Signup and view all the answers

    What does TMS stand for in neuroscience?

    <p>Transcranial Magnetic Stimulation</p> Signup and view all the answers

    How does Transcranial Magnetic Stimulation (TMS) work?

    <p>It uses magnetic fields to stimulate nerve cells in the brain.</p> Signup and view all the answers

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