Describe about the Halstead's discriminating tests

Halstead's discriminating tests are viewed as a measure of adaptive abilities, of skills that ensured man's survival on the planet. Many neuropsychologists are now greatly concerned with the relevance of their test procedures to adaptation, that is the capacity to carry on functional activities of daily living and to live independently (Heaton & Pendleton, 1981). This general philosophy is somewhat different from the more traditional models emanating from behavioural neurology, in which there is a much greater emphasis on the more medical-pathological implications of behavioural test findings.