We're planning to conduct a basic sensory and motor audit of patients within the QE Hospital ICU here in Birmingham and in support of some of our virtual restorative environment projects I'd like to include a couple of popular tests (EFT) addressing cognitive style and mental rotation (Shepard & Metzler).  Is anyone aware of (a) valid "cut-down" versions of these tests and (b) the existence and availability of computerised versions?