Figure 2. Genotype-dependent modulation of amygdala activation.

(A) Behavioral results. Leu carriers showed longer reaction times during 2-back performance, particularly in the emotional condition. (B) Top: Amygdala activation during 2-back performance in the emotional condition was observed in Pro homozygotes, but was largely absent in Leu carriers. There was also a trend for higher amygdala activation in the neutral and emotional 0-back conditions. Bottom: Pro homozygotes also exhibited stronger FFA activation in all conditions. Bar plots depict contrasts of parameter estimates and standard errors.