Exploration of deletion variant dose-dependent effects of reboxetine on enhanced memory for negative pictures and gene dose-dependent effects. 0 indicates noncarriers (N = 52); 1, heterozygous carriers (N = 47); 3, homozygous carriers (N = 15). **p < 0.01. Exploration of deletion variant dose-dependent effects of reboxetine on enhanced memory for negative pictures and gene dose-dependent effects. 0 indicates noncarriers (N = 52); 1, heterozygous carriers (N = 47); 3, homozygous carriers (N = 15). **p < 0.01. Negative EEM Index = percentage increased recall of negative versus neutral pictures. Ayana A. Gibbs et al. J. Neurosci. 2013;33:17023-17028 ©2013 by Society for Neuroscience