Figure 4.
Mean ± SEM of the frequency of aggressive (A), submissive (B), and affiliative (C) behaviors per hr following saline (open bar) or ghrelin (closed bar) administration in dominant (D) and subordinate (S) animals during control or astressin B treatments. Dominant animals showed higher rates aggressive behavior in comparison to subordinate animals (A), and subordinate animals showed increased submissive behavior in comparison to dominant animals (B). Dominant animals showed increased affiliative behavior in comparison to subordinate animals, and astressin B increased affiliation only in dominant animals (C). Different letters indicate groups differed significantly (p < 0.05).