100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
CSD 350 Exam 2 Review Questions And Accurate Answers Latest Update $11.99   Add to cart

Exam (elaborations)

CSD 350 Exam 2 Review Questions And Accurate Answers Latest Update

 3 views  0 purchase
  • Course
  • CSD 350
  • Institution
  • CSD 350

CSD 350 Exam 2 Review Questions And Accurate Answers Latest Update...

Preview 3 out of 17  pages

  • September 20, 2024
  • 17
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • CSD 350
  • CSD 350
avatar-seller
Easton
CSD 350 Exam 2 Review Questions And Accurate
Answers Latest Update

What is the Temporal Resolution like for PET? - Answer Low ( >1 cm)



What does PET stand for? - Answer Positron Emission Tomography



What is the Spatial Resolution like for PET? - Answer Low (slow, over seconds)



Is PET invasive? - Answer Not really. However, the patient must be exposed to a
radioactive substance.



What does PET measure? - Answer -PET Measures metabolic processes

-Involves exposure to radiation/radioactive tracers

-The metabolic process of some molecules (radioactive tracers)



What does a PET machine look like? - Answer



What does fMRI stand for? - Answer Functional Magnetic Resonance Imaging



What is the Temporal Resolution like for fMRI? - Answer Low (slow, over many seconds)



What is the Spatial Resolution like for fMRI? - Answer High-can measure 1 mm^3 of brain
tissue at a time



What does BOLD mean? - Answer Blood-Oxygen Level Dependent

,What does an fMRI measure? -Answer: BOLD signal



How does an fMRI measure BOLD signals? -Answer: Oxygenated and deoxygenated
hemoglobin in blood have different magnetic properties



How does the brain's activity alter BOLD signals and allow for fMRI's to be used?
-Answer -When brain tissue is active, blood rushes in. This causes a high BOLD signal.

-When at rest, blood deoxygenates, yielding a low BOLD signal



How can fMRI's be analyzed? - Answer The Contrast Method: Scan brain during two
different conditions and compare activity



What is the Contrast Method? - Answer A way to analyze fMRI's. Measure brain activity
under 2 different conditions, then compare the activity to see where the difference
occurred.



Is fMRI invasive? - Answer No



What does EEG stand for? - Answer Electroencephalography



What is the Spatial Resolution like for EEG? -Answer Low-each EEG electrode on the
scalp measures a wide area



What is the Temporal Resolution like for EEG? -Answer High-millisecond precision



Is EEG invasive? -Answer No



What does EEG look like? -Answer

, What are some of the benefits of an EEG? -Answer "-";

inexpensive

non-invasive

high temporal resolution



How many electrodes does an EEG cap have? -Answer Over 30 electrodes is
considered a lot, but can have 3-250



What does an EEG measure? -Answer An EEG measures electrical potentials at the
scalp, this reflects groups of neurons



How many neurons does an EEG measure from? -Answer A group of many neurons



What can an EEG be used to look at? -Answer -Evoked Potentials (e.g.:Newborn hearing
test)

-Induced EEG (e.g.: Changes to brain activity with a task)-Resting EEG (e.g.: Brain
activity without a task)



How can we analyze EEG? - Answer -Averaged waveform
response-Spectral-Time-frequency-Functional Connectivity



What does fNIRS stand for? - Answer Functional Near Infrared Spectroscopy



What is the Temporal Resolution like for fNIRS? - Answer Low (slow, over many
seconds)



What is the Spatial Resolution like for fNIRS? - Answer Low (each fNIRS sensor
measures a wide area)

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Easton. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $11.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

83100 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$11.99
  • (0)
  Add to cart