Hello,

There is a newly available demo of the FATCAT (Functional And Tractographic Connectivity Analysis Toolbox) v1.1 subset of programs available for downloading/running; it can be got in the same way as the old toolbox, by typing the following in the commandline:
$ @Install_FATCAT_demo
which will download and unzip the FATCAT_DEMO/ directory with all necessary files and scripts (NB: it's about 215MB to download).

While some scripts are the same, several are a bit more fleshed out, I think usefully so. Importantly they also demonstrate a new functionality of the deterministic tracking-- one can estimate tracts among networks of ROIs in much a similar way to the 3dProbTrackID usage. Previously, at most two ROIs could be used per deterministic tracking usage; now, arbitrary numbers of target ROIs (at least up to some reasonable value) can be input, with either {OR | AND} pairwise-logic used.

As part of this, it should be noted that the new functionality is input as an option to 3dProbTrackID, rather than keeping a separate value. Thus, where as one would have, e.g., `3dTrackID -mask1 NAME1 -mask2 NAME2 -logic AND ...', now one will have `3dProbTrackID -det_net AND -net_rois NETS_NAME ...'. 3dTrackID still exists unchanged, but further updates to deterministic usage will all be done as an option to `3dProbTrackID -det_net ...'

Finally, there's an option to add in some of the uncertainty of tensor estimates into an extension of purely deterministic tractography; one can do some Monte Carlo iterations of perturbed values using the 3dDWUncert uncertainty estimations. This option of `3dProbTrackID -det_net' is called `-mini_prob', and it is also demonstrated in the new demo.

As always, questions/comments/suggestions are welcome.

--pt