Electromagnetic Neuroimaging Methods - Main Ideas
10 Questions
3 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

What are the two main methods used to know when things happen in the brain?

EEG or MEG

How can signals be decomposed in electromagnetic neuroimaging?

Analyses in frequency domain

What is the electrical component associated with the generation of an electromagnetic field from inner to outer surface in the brain?

EEG

What method is used to detect small changes induced by events in EEG recordings?

<p>Event-related potentials</p> Signup and view all the answers

Why do scalp fields not directly reflect which part(s) of the brain give rise to the signals in EEG recordings?

<p>Inverse problem</p> Signup and view all the answers

What are the challenges in uniquely estimating intracerebral sources using EEG?

<p>Smearing/distortion during volume conduction and limited number of electrodes</p> Signup and view all the answers

What are the requirements for an electromagnetic field to be detectable and measurable on the scalp?

<p>The electromagnetic field must be large, requires summated activity of thousands of neurons, and the neurons must be active synchronously.</p> Signup and view all the answers

What is the main difference between EEG and MEG in terms of brain activity detection?

<p>EEG picks up more brain activity than MEG.</p> Signup and view all the answers

How can intracerebral sources sometimes be estimated mathematically?

<p>By relying on other knowledge and making assumptions.</p> Signup and view all the answers

What factors should be considered when choosing a technique to answer a question of interest?

<p>Cost, availability, comfort of the technique, and compatibility with equipment.</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser