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neuRosim (version 0.2-13)

Simulate fMRI Data

Description

Generates functional Magnetic Resonance Imaging (fMRI) time series or 4D data. Some high-level functions are created for fast data generation with only a few arguments and a diversity of functions to define activation and noise. For more advanced users it is possible to use the low-level functions and manipulate the arguments. See Welvaert et al. (2011) .

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Version

Install

install.packages('neuRosim')

Monthly Downloads

300

Version

0.2-13

License

GPL (>= 2)

Maintainer

Karsten Tabelow

Last Published

September 20th, 2022

Functions in neuRosim (0.2-13)

simprepSpatial

Prepare spatial structure of the data
simprepTemporal

Prepare temporal structure of the data
specifydesign

Generate design matrix.
simTSrestingstate

Simulate fMRI resting state time series
spatialnoise

Generate spatially correlated noise
systemnoise

Generate system noise
tasknoise

Generate task-related noise
simVOLfmri

Simulate 3D or 4D fMRI data
temporalnoise

Generate temporally correlated noise
stimfunction

Generate a stimulus boxcar function.
specifyregion

Generate activation image
physnoise

Generate physiological noise
neuRosim-package

Functions to Generate fMRI Data Including Activated Data, Noise Data and Resting State Data
simTSfmri

Simulate fMRI time series
lowfreqdrift

Generate low frequency drift
balloon

Balloon model
gammaHRF

Single Gamma Haemodynamic response function.
GaussSmoothKernel

Calculates a discrete Gaussian smoothing kernel (adopted from AnalyzeFMRI)
rrice

The Rice Distribution
canonicalHRF

Double-gamma Haemodynamic reponse function
Sim.3D.GRF

Simulate a GRF (adopted from AnalyzeFMRI)