Generalized PPI Toolbox

An automated toolbox for a generalized form of psychophysiological interactions for SPM and FSFAST.

The automated toolbox can do the following:
(a1) produce identical results to the current implementation in SPM
(a2) use the current implementation of PPI in SPM but using the regional mean instead of the eigenvariate
(a3) uses a generalized form that allows a PPI for each task to be in the same model using either the regional mean of eigenvariate
(b) creates the model using the output of one of the (a) options and the first level design
(c) estimates the model (/results directory)
(d) computes the contrasts specified

When using the toolbox, please cite the following paper:
McLaren, DG, Ries, ML, Xu, G, Johnson, SC. A Generalized Form of Context-Dependent Psychophysiological Interactions (gPPI): A Comparison to Standard Approaches. NeuroImage (in press).
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Specifications

License:Personal License
Domain:MR

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Cluster and voxel level correction of PPI posted by maktomak on Mar 24

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Interpretation of gPPI results  posted by Zane Xie on Feb 10

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RE: Parametric Modulation - All Same Results? posted by Donald McLaren on Jan 6

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RE: Parametric Modulation - All Same Results? posted by Elisa Baek on Jan 6

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Parametric Modulation - All Same Results? posted by Elisa Baek on Dec 17, 2016

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Constrasts in gPPI saved as .img with no .hdr posted by Marek Wypych on Dec 12, 2016

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RE: gPPi not work with updated SPM12 (v6906) posted by Feng Zhou on Dec 5, 2016

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RE: gPPi not work with updated SPM12 (v6906) posted by Yu-Shiang Su on Dec 1, 2016

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Updated spm_spm_WB.m posted by Donald McLaren on Nov 30, 2016

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RE: gPPi not work with updated SPM12 (v6906) posted by Donald McLaren on Nov 30, 2016