How do I download fMRI data?
Download the dataset by clicking on the “Download” button at the top of the page. The dataset is about 2 Gigabytes, and comes in a zipped folder. Extract it by double-clicking on the folder, and then move it to your Desktop.
How is fMRI data analysis?
Functional magnetic resonance imaging (fMRI) is one of the most widely used tools to study the neural underpinnings of human cognition. Standard analysis of fMRI data relies on a general linear model (GLM) approach to separate stimulus induced signals from noise.
What data can be collected from an fMRI?
A primary use of fMRI is mapping brain function to brain structure as well as exploring physiological and pathological changes in functional activity of the brain.
What is Time Series fMRI?
Remember that fMRI datasets contain several volumes strung together like beads on a string – we call this concatenated string of volumes a run of data. The signal that is measured at each voxel across the entire run is called a time-series.
What is the purpose of fMRI?
It may be used to examine the brain’s functional anatomy, (determine which parts of the brain are handling critical functions), evaluate the effects of stroke or other disease, or to guide brain treatment. fMRI may detect abnormalities within the brain that cannot be found with other imaging techniques.
What is fMRI used to diagnose?
What is a Regressor fMRI?
Essential regressors (also known as regressors of interest) are a set of idealized predictions of what the hemodynamic response function (HRF) should look like if a voxel of interest became activated due to a task or stimulus.
What does fMRI measure in the brain?
fMRI detects brain activity by measuring the changes in both the amount of oxygen in the blood and the amount of blood flow [4, 5]. This measurement is known as blood-oxygen-level-dependent activity (BOLD activity).