after the first 20 minutes of the aggression test residents showed a greater increase in norepinephrine than intruders ( 216 % vs. 97 % ) , while intruders showed a greater increase in epinephrine ( 394 % vs. 51 % ) and corticosterone ( 338 % vs. 129 % ) than residents .
C0028351
norepinephrine
C0014563
epinephrine