The Collaborative Neuropsychological Study of Polydrug Users

Cognitive impairment among the dually‐diagnosed: substance use history and depressive symptom correlates

“…The non-significant findings for cocaine use using both the traditional and modified SILS classification schemes are consistent with at least two previous studies (Bruhn & Maage, 1975;Grant et al, 1978) that have examined the effects of stimulant abuse on cognitive functioning. The significant effect of life-time cocaine use on ST-LNNB classification was also consistent with the results of several studies demonstrating associations between cocaine use and cognitive functioning (e.g.…”

“…In fact, the prevalences of impaired performance obtained in the present study using the ST-LNNB and SILS screening instruments (0.09 and 0.22, respectively) are somewhat lower than the 0.34-0.50 prevalences found in previous studies (e.g. Grant et al, 1978;Castaneda, 1994). Secondly, the present study utilized global measures of substance use.…”

Progressive White Matter Microstructure Damage in Male Chronic Heroin Dependent Individuals: A DTI and TBSS Study

“…This observation complemented previous functional [29] and structural [30] neuroimaging studies, which found out that the brain functional as well as the gray matter volume/density was progressively damaged along with the duration of drug abuse in HDI. It also agreeed with behavior studies that heavier use of opiates in long-term users was associated with greater likelihood of neuropsychological impairment [31]. Together with previous findings, it was plausible for us to demonstrate heroin addicts could impair the gray matter volume/density and white matter microstructure progressively, which may underpin the functional deficits in HDI.…”

Neuropsychological Functioning and Recall of Research Consent Information Among Drug Court Clients

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