In any attempt to recover a loss, it becomes important to assess what is lost, and to what extent. In clinical medicine, evaluation of loss of particular function(s) is fundamental to both diagnosis, and planning possible interventions that may be restorative. The term diagnosis is etymologically derived from the Greek diagignoskein, “to discern.” The root of the word, gign ́̄ oskein (γιγνώσκειν)...
