hpf_Param_BayesGLM

Performs a spatial Bayesian general linear model (GLM) for task
functional magnetic resonance imaging (fMRI) data on the cortical surface.
Additional models include group analysis and inference to detect thresholded
areas of activation. Includes direct support for the 'CIFTI' neuroimaging
file format. For more information see A. F. Mejia, Y. R. Yue, D. Bolin, F.
Lindgren, M. A. Lindquist (2020) <doi:10.1080/01621459.2019.1611582> and D.
Spencer, Y. R. Yue, D. Bolin, S. Ryan, A. F. Mejia (2022)
<doi:10.1016/j.neuroimage.2022.118908>.

Amanda Mejia

BayesfMRI

Spatial Bayesian Methods for Task Functional MRI Studies

Damon Pham

David Bolin

Yu (Ryan) Yue

Daniel Spencer

Sarah Ryan

hpf_Param_BayesGLM function

<dl><dt>hpf</dt>
<dd>Add DCT bases to <code>nuisance</code> to apply a temporal high-pass
filter to the data, for detrending? <code>hpf</code> is the filter frequency.
Use <code>NULL</code> to skip detrending. Detrending is strongly recommended for
fMRI data, to help reduce the autocorrelation in the residuals, so
<code>NULL</code> will induce a warning. Use <code>"already"</code> to disable the
warning while skipping highpass filtering.
Using at least two DCT bases is as sufficient for detrending as using linear
and quadratic drift terms in the nuisance matrix. So if DCT detrending is
being used here, there is no need to add linear and quadratic drift terms to
<code>nuisance</code>.</dd></dl>

Arguments

hpf — hpf_Param_BayesGLM

<dl>

<dt>hpf</dt>
<dd>Add DCT bases to <code>nuisance</code> to apply a temporal high-pass
filter to the data, for detrending? <code>hpf</code> is the filter frequency.
Use <code>NULL</code> to skip detrending. Detrending is strongly recommended for
fMRI data, to help reduce the autocorrelation in the residuals, so
<code>NULL</code> will induce a warning. Use <code>"already"</code> to disable the
warning while skipping highpass filtering.
Using at least two DCT bases is as sufficient for detrending as using linear
and quadratic drift terms in the nuisance matrix. So if DCT detrending is
being used here, there is no need to add linear and quadratic drift terms to
<code>nuisance</code>.</dd>

</dl>

hpf_Param_BayesGLM: hpf

Description

Arguments