Notice the opposition of subjects activation/deactivation (the signs are arbitrary but not the product of signs of the three components, i.e. one have change the signs of two components at the same time!)
This one seems more related to some motion correlated to the paradigm. Now the Principal Tensors associated to the subject component of the vs111 Principal Tensor:
This is a little correlated to the paradigm but the space component seems to show artefact motion (front) and visual and/or attention activation (occipital).
This is well correlated to the paradigm; the space component is closer to what we had for the analysis without this inverse "within-group" metric. (more discussion about using metrics in Leibovici(2001c))