<qa>  What is the blood-oxygenation level-dependent imaging of brain activation during?fMRI: Anatomical MRI and fMRI sequences are performed to obtain blood-oxygenation level-dependent BOLD imaging of brain activation during 1 triggered or provoked involuntary hyperkinetic movements and voluntary imitated movements in subjects with psychogenic paroxysmal hyperkinetic movement disorders and 2 voluntary imitated movements and rest states in healthy volunteers. 