This is a single subject's PET data from a multisubject PET-fMRI study. (see reference below). Subject used left hand to perform finger opposition task: touch thumb to index finger, to middle finger, to ring finger, to pinky, the repeat. Subject performed this this at a rate of 2 Hz, as guided by a visual cue. For baseline, there was no finger movement, but the visual cue was still present. Odd scans are activation, even scans are baseline.
Thanks to Paul Kinahan & Doug Noll for sharing this data.
This data set is used in the SnPM example.