A method and system is presented to address quantitative assessment of functional impairment in a subject, comprising: presenting a plurality of tests to a subject on a display, the tests comprising a series of scenes, the scene comprising at least one stimulus, wherein the scene may be associated with visual, auditory, and tactile stimulus arrays modulating at least one spatial characteristic of at least one stimulus receiving feedback from the subject via at least one input device quantitatively refining the scene relative to the received feedback calculating the relationship between at least one of the scene, the stimulus, and the quantitatively refined scene adjusting the scene relative to the calculated relationship determining equilibrated scene parameter of the subject recording the equilibrated scene parameter onto a tangible computer readable medium generating at least one diagnosis to the functional impairment associated with the equilibrated scene parameter recommending treatment to the subject.
