Description FBRbeta functions Example
The Finite BOLD Response (FBR) is a method to analyze fMRI
data. This method convolves the HRF with a design matrix.
This design matrix includes several boxcars with a particular length. The
FBR is a superior method in event-related designs and in models with lag
between HRF onset and stimulus onset. The advantange of the FBR is that it
is a flexible method, and it can estimate the BOLD. This current
implication of the FBR is based on beta-series. Each BOLD will get several
beta-values, depending on the amount and the length of the boxcars.
The fbrbetafunc
is the general functions for the FBR.
This code consists of several other functions:
The fbrbetafunc
is the general functions for the FBR.
This code consists of several other functions:
A function to shuffle the first timing, timingmatrix
A function to obtain the beta's from X and y, betafunc
,
A code to make boxcars of a particular timing boxcars
,
A code that combines timingmatrix
and boxcars
in a function called designmatrix
See the vignette for a nice example and step-by-step explanation.
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