sim_ts: Simulate fMRI Time Series

In bbuchsbaum/fmrireg: R package for the anlysis of fmri data

Simulate fMRI Time Series

Description

This function simulates an fMRI time series for multiple conditions with specified parameters.

Usage

sim_ts(ncond, nreps = 12, amps = rep(1, ncond), isi = c(3, 6), TR = 1.5)

Arguments

ncond	The number of conditions to simulate.
nreps	The number of repetitions per condition (default is 12).
amps	A vector of amplitudes for each condition (default is a vector of 1s with length ncond).
isi	A vector specifying the range of inter-stimulus intervals to sample from (default is c(3, 6)).
TR	The repetition time of the fMRI acquisition (default is 1.5 seconds).

Value

A list with two elements:

• onset: A vector of the onset times for each trial.

• mat: A matrix containing the simulated fMRI time series, with time in the first column and the simulated responses for each condition in the subsequent columns.

bbuchsbaum/fmrireg documentation built on May 16, 2023, 10:56 a.m.