“…Originally thought to be a slow, progressive dementia that affected only a portion of the AIDS/ARC population (Christ & Wiener, 1985;Snider et al, 1983), recent research has reported that up to 80% of these patients demonstrate detectable central nervous system (CNS) involvement at autopsy (Petito et al, 1985). Onset and progression have been reported variably with more rapid deterioration evident within 3 months (Navia & Price, 1987), while others describe insidious onset over a period of years (Perry & Jacobsen, 1986). Currently, the significance of a developing dementia among human immunodeficiency virus (HIV) patients has increased sharply, with the recent inclusion of dementia as a primary diagnostic criterion for the diagnosis of AIDS (Centers for Disease Control, 1987).…”