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Age And Sex Differences In The Acquisition And Maintenance Of Intravenous Amphetamine Self-Administration In Rats, Mahin Shahbazi
Age And Sex Differences In The Acquisition And Maintenance Of Intravenous Amphetamine Self-Administration In Rats, Mahin Shahbazi
Biology Theses
Drug abuse peaks during adolescence, and exposure to drugs during adolescence predicts drug abuse in adulthood. Nevertheless, adolescence is not widely studied in animal models of drug intake. Moreover, few studies have investigated sex differences in drug-reinforced behavior during adolescence. We studied age- and sex-differences in acquisition and maintenance of amphetamine self-administration in Sprague-Dawley rats. Adolescent males took more amphetamine than adult males, supporting the hypothesis that adolescents are more sensitive to amphetamine. A high rate of “inappropriate” active lever presses among periadolescent males suggests impulsive behavior. In the maintenance phase of testing, young adult males failed to work as …
Making The Grade: Academic Achievement Among Latino Adolescents, Cathy Roche
Making The Grade: Academic Achievement Among Latino Adolescents, Cathy Roche
Psychology Theses
Academic achievement among Latino adolescents was examined to determine what contextual factors contribute to school success. ANCOVA analyses indicated that lower levels of perceived discrimination and a higher sense of school belonging were associated with better grades. Neighborhood social capital was not associated with school grades. More adaptation stress was associated with lower grades for US-reared students, but it was not associated with grades for more recent Latino immigrants. The findings suggest that discrimination, school belonging, and adaptation stress play an important role in academic achievement among Latino youth. They also suggest that immigrants may be more academically resilient than …