roiConnectivity: calculate Connectivity with spatial averaging

Description Usage Arguments Value Author(s) See Also

Description

Calculates functional connectivity based on the spatial average of the voxels within the isoContours of the estimated model.

Usage

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roiConnectivity(arfmodel,roidata=setIsoContour(arfmodel,95),
 funcfilename='single_events.nii.gz',type=c('avg','ev'), 
 evmodel=c('spatial','spatiotemporal','eigenvariate'))

Arguments

arfmodel

An ARF model object (class model).

roidata

fmri.data object containing ROIs for each region (must contain a volume for each region), can be obtained via setIsoContour.

funcfilename

Filename of the volume to extract the single-trial data.

type

Average using no weighing ('avg') or by weighing with the first spatial eigenvector ('ev').

evmodel

Which data is used to calculate the first spatial eigenvector: 'spatial', 'spatiotemporal', or 'eigenvariate'.

Value

Returns an object of class arfcorrelation including the region by time matrix of amplitude time-series and the estimated correlations.

Author(s)

Wouter D. Weeda - w.d.weeda@gmail.com

See Also

model, arfcorrelation, fitConnectivity, setIsoContour



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