Cognitive impairments in clients with dual diagnosis (chronic psychotic disorders and substance abuse): considerations for treatment

Abstract

AbstractThe objective of this study was to assess a broad range of cognitive functioning in a dual diagnosis sample (individuals with a chronic psychotic disorder and substance abuse/dependence) and offer recommendations for programme design and treatment interventions. The Neurobehavioural Cognitive Status Examination (NCSE) was administered to twenty‐seven subjects. Statistical comparisons with a normative and psychiatric sample were conducted. The results revealed that two‐thirds of the sample demonstrated cognitive impairments as measured by the NCSE, with 37% scoring in the impaired range on three or more of the ten subtests. Great variability between subjects was recorded. Deficits at the p<0.05 level were recorded for seven of the ten subtests in the young group, and for two of the ten subtests for the old group as compared to a normal population. For both age groups memory and judgement were the most statistically deficient. This study supports assessment of cognitive status for dual diagnosis clients, in order to offer treatment appropriate to varied levels of intellectual functioning and suggest a number of treatment options. Copyright © 1996 Whurr Publishers Ltd.