Substance dependence, family history of alcohol dependence and neuropsychological functioning in adolescence.
OBJECTIVE
It was hypothesized that adolescent substance dependence moderates the relationship between family history of alcohol dependence and neuropsychological functioning.


METHODS
This study compared the neuropsychological functioning of non-abusing and alcohol and drug-dependent adolescents with and without a family history of alcohol dependence using hierarchical multiple regressions and general factorial analyses.


METHODS
Substance-dependent adolescents were recruited and tested in inpatient alcohol and drug abuse treatment programs after 3 weeks of abstinence. A matched sample of non-abusing adolescents was recruited from the same San Diego-area communities.


METHODS
Substance-dependent adolescents (n = 101) met DSM-III-R criteria for dependence on alcohol and at least one other substance. Non-abusing adolescents (n = 50) had no substance use disorders. Groups were comparable on socio-economic status. Participants were 44% female, ages 13-18, and had no serious head injuries or neurological disorders.


METHODS
Information was gathered on demographics, family history, substance involvement, and conduct disorder behaviors and adolescents were administered neuropsychological tests covering language, visuospatial, verbal memory, attention and executive functioning domains.


RESULTS
The hypothesis was supported for language and attention tests. Substance involvement interacted with family history of alcohol dependence to predict language and attention functioning. Family history negative non-abusers performed better than the other adolescents.


CONCLUSIONS
The pattern of results suggests that family history of alcohol dependence and adolescent substance use are separate risk factors for poorer neuropsychological performance in youth.
Tapert
S F
SF
VA San Diego Healthcare System, CA, USA.
Brown
S A
SA
D000293:Adolescent; D000294:Adolescent Behavior; D000437:Alcoholism / Q000150:complications / Q000235:genetics; D003072:Cognition Disorders / Q000209:etiology* / Q000235:genetics; D005260:Female; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests; D010375:Pedigree; D012044:Regression Analysis; D012307:Risk Factors; D019966:Substance-Related Disorders / Q000150:complications* / Q000235:genetics; D011795:Surveys and Questionnaires