Table 1 presents demographic and working memory performance data for the entire group and the Low- and High-quartile resiliency groups separately. Mean resiliency score for the entire sample was 5.5±1.2, (range 3.1–7.2), in line with that of the entire MLS population: 5.8±0.8, (range 3.1–7.6), n=496. Performance and RTs were in agreement with previous work using the same n-back task (Jansma et al., 2000). No family history or gender effects were found for performance (p’s>0.18). Resiliency did not differ by family history (t=0.06, p=0.952) but females showed a trend for higher resiliency (t=1.81, p=0.075); therefore gender was added as a covariate in subsequent analyses.