“…One of the first priorities, therefore, was to devise rating scales that might be used to chart progress in brain injury rehabilitation , to be used alongside traditional neuropsychological measures (although even the latter at that time could be considered rather primitive by today's standards). It was decided to use the Chessington Physical Assessment (see Evans et al, 1974), which has since proved consistently helpful: It makes no assumptions about the neurological causes of physical deficits, but scores functional performance in a range of basic movements ("Locomotor Abilities"), the ability to control movements at central and peripheral joints ("Dynamic Interference by Abnormal Tone"), and various aspects of sensation ("Joint Position Sense" and "Superficial and Deep Sensation"). All score levels are pre-defined, so that the assessment qualifies as "objective".…”