Neuropsychological correlates of polysubstance abuse in an adolescent population

Date of Award




Degree Name

Doctor of Philosophy (Ph.D.)



First Committee Member

Richard Carrera, Committee Chair


A group of 25 adolescent polydrug abusers were neuropsychologically assessed and compared to a group of 25 non-drug abusing conduct disordered adolescents as well as to 25 normal adolescents. The polydrug abuse and conduct disorder groups were not found to differ significantly from each other on any of the neuropsychological measures, however both of these groups did demonstrate a significant difference from the normal group on several measures. The polydrug abuse and conduct disorder groups performed more poorly than did the normal group on measures of written and oral fluency, verbal expressive functioning, attentional factors, overall neuropsychological functioning and overall I.Q. Whether or not the deficits observed in the polydrug and conduct disorder groups relative to the normal group were secondary to (1) properties uniquely inherent to each of these respective groups, (2) an undefined commonality shared by these two groups or (3) the combined influences of both 1 and 2 above, was not determined by the present study.


Psychology, Psychobiology; Psychology, Clinical; Psychology, Physiological

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