Haxby et al.'s several-subject fMRI is available

Post date: Jun 15, 2012 2:52:42 AM

So far, I have been using the single-subject fMRI data appeared in Haxby et al. (2001) paper.

http://code.google.com/p/princeton-mvpa-toolbox/wiki/Downloads?tm=2

Now I just found out that the several-subject fMRI are also available.

http://data.pymvpa.org/datasets/haxby2001/

Note some differences between the single-subject data set and the several-subject data set having 12 runs per each of the 6 subjects. Some more details about the data set can be found on the source website. Therefore, now we can do several interesting things:

1. Intra-subject classification: train and test the data from the same subjects
2. Inter-subject classification: train with some subjects, test on another subject
3. Combine-subject classification: train and test on the data from all subject combined as if they are fro the same person.
4. Representation-space inter/inter-subject.