After excluding for excessive movement (n = 5), abnormal brain anatomy (n = 4), signal drop-out (n = 4), neuropsychological scores below the normal range (n = 1), or ≤50% accuracy on the fMRI task (n = 2), remaining participants (n = 72, 43% female, 78% Caucasian) were ages 12 to 14, typically from upper middle to upper class families, and average to high average intellectually. History of alcohol and other drug use was minimal (see Table 1). Adolescents who met for conduct disorder (n = 7 “mild” and n = 5 “moderate” in severity) were included, as this was evenly distributed across FH density values.
