Table 1.

Results for PCA fits to the brain's relative rigid-body motion. Here, xb = αθb and zb = βθb, where θb, xb and zb represent sagittal rotation, PA displacement and IS displacement of the brain relative to the skull, respectively (electronic supplementary material; equation (A 8)).

α (m rad−1)β (m rad−1)
subject 10.00240.0053
subject 20.00210.0093
subject 30.00100.0056