Case-control comparisons
Across all participants, mixed-measures ANOVAs showed that increasing working memory load was associated with reduced accuracy, longer MRT, and larger SDRT. Significant interaction effects between working memory load and group were observed for MRT when controls were compared to patients under placebo, due to patients responding slower during 0-back and 2-back, and faster during 1-back and 3-back; however, post hoc tests revealed these effects were statistically non-significant (0-back, 