NEUROPSYCHOLOGICAL TEST PATTERNS IN MEN FOR ALZHEIMERS AND MULTIINFARCT DEMENTIA

This paper examined three patterns of rest performance on the Halstead Reitan Battery (HRB) and the Wechsler Adult Intelligence Scale-Revise d (WAIS-R), including Fuld's formula, that differentiated Alzheimer's Disease (AD) from cerebrovascular disease, especially Multi-Infarct De mentia (MID). Study 1 and 2 utilized 12 AD subjects and 13 subjects wh o had transient ischemic attacks (TIAs). All of the subjects in this s tudy were male. The severity of impairment was equated. A WAIS-R deter ioration pattern was found for the AD subjects, from which a formula w as derived that correctly identified 84% of the subjects. The Fuld for mula identified 76%. In regard to the HRB, Motor tests especially were less impaired for AD subjects and the HRB formulas correctly identifi ed about 92% of the subjects. A third study, using an entirely new sam ple, applied these formulas to 11 AD and 28 MID subjects. The same rat e of separation for the HRB formulas was found. Neither the WAIS formu la, with the original cutting points, nor did the Fuld formula quite r each significance.