simprepTemporal: Prepare temporal structure of the data

In neuRosim: Simulate fMRI Data

Prepare temporal structure of the data

Description

Prepare a list defining the necessary parameters to specify the temporal structure of the activation data.

Usage

simprepTemporal(totaltime, regions = NULL, onsets, durations, 
	TR, effectsize, accuracy=0.1, 
	hrf = c("gamma", "double-gamma", "Balloon"), 
	param = NULL)

Arguments

totaltime	Duration of the experiment.
regions	Number of regions. If not specified, it is assumed that all regions have the same design matrix.
onsets	List or vector representing the onsets of the stimulus in seconds.
durations	List or vector representing the durations of the stimulus in seconds.
TR	Repetition time in seconds.
effectsize	List or number representing the effectsize in each condition.
accuracy	Microtime resolution in seconds.
hrf	Haemodynamic response function (double-gamma is default)
param	Vector, matrix or array representing the parameters of the haemodynamic response function.

Value

A list with the necessary arguments to be used in simVOLfmri or simTSfmri.

Author(s)

M. Welvaert

See Also

simVOLfmri, simTSfmri, simprepSpatial, specifyregion

Examples

ncond <- 2
os <- list(c(20,60),c(15,35))
d <- list(20, 10)
effect <- list(7,10)
total <- 80
TR <- 2
out <- simprepTemporal(total, onsets=os, durations=d, TR=TR, 
	effectsize=effect, hrf="double-gamma")

neuRosim documentation built on Oct. 18, 2023, 5:09 p.m.