Fig 1.
Plot of the estimated motion of a subject performing the figure-8 movement.
Translations and rotations are plotted together, with the vertical axis units being mm or degrees.
Fig 2.
MPRAGE data acquired without motion and with motion under different experimental conditions.
The yellow arrows indicate motion artifacts.
Fig 3.
MPRAGE axial (A and D), coronal, (B and E), and sagittal (C and F), images overlaid with segmentation results. Top and bottom rows are the No PMC and PMC conditions, respectively. The red arrow indicates ringing artifacts due to motion. The yellow arrows indicate areas of poor segmentation due to motion artifacts. The orange arrows indicate artifacts in the phase-encode direction due to eye movement. The blue arrows indicate areas of poor segmentation in the temporal lobe due to eye movement artifacts. The white arrows indicate both the under and over estimation that occurs in subcortical structures due to motion artifacts.
Fig 4.
Plots of the average % difference of cortical measures extracted from the surface-based stream of FreeSurfer compared to the no movement, control, condition for mean cortical thickness (A), and total cortical volume (B). The * indicates significant difference compared to control condition at level p<0.00156.
Fig 5.
Plot of the average % difference of whole cortex and sub-cortical structure volumes extracted from the volume-based stream of FreeSurfer compared to the no movement, control, condition.
The * indicates significant difference compared to control condition at level p<0.00625.
Fig 6.
Graphs of the norm. ws-stdev. of the mean cortical thickness (A) and total cortical volume (B). In A, results excluding the temporal pole and entorhinal regions in the temporal lobes are highlighted and outlined in black.
Fig 7.
Graph of the norm. ws-stdev. of whole cortex and sub-cortical structure volumes.