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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RE: Constrasts in gPPI saved as .img with no .hdr posted by Yangyang Zhang on May 26

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gPPI contrast comparing across sessions posted by Pyungwon Kang on May 12

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Estimation Failed posted by Agnes Bao on May 10

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RE: Cluster and voxel level correction of PPI posted by maktomak on May 9

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gPPI toolbox use create_sphere_image erro posted by Lanbo Wang on May 8

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RE: Constrasts in gPPI saved as .img with no .hdr posted by Donald McLaren on Apr 12

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RE: Cluster and voxel level correction of PPI posted by Donald McLaren on Apr 12

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RE: Interpretation of gPPI results  posted by Donald McLaren on Apr 12

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RE: Error in timeseries_extract function | spm12 posted by Donald McLaren on Apr 12

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Error in timeseries_extract function | spm12 posted by Sigita Venclove on Mar 28