Figure 2.

Behavioral responses toward neutral and aversive stimuli. (a-c) illustrate an example of neutral (N, solid bars) and aversive (A, horizontal striped bars) stimuli across different category type. Mean ± SEM behavioral responses on Social (d,g,j), Innate (e,h,k), and learned (f,i,l) aversive categories. Latency to retrieve the grape (G, diagonal striped bars) reward (d-f), duration of object manipultion (g-i), and frequency of fearful behavior expression (j-l). Grey bars indicate neonatal amgydala lesions (Neo-Aibo) and white bars indicate sham-operated controls (Neo-C). § indicates a significant difference between sexes. * indicates a significant difference between groups (p < 0.05). NS indicates no significant differences.