Neuroendocrine responses in free-living female and male lizards after aggressive interactions.

Although female aggression is found in many species and in a variety of contexts, little is known about its physiological bases. To compare neuroendocrine responses to aggression in females and males, we staged aggressive interactions between free-living territorial mountain spiny lizards and same-sex intruders and measured brain monoamines, plasma steroid hormone levels, and plasma glucose levels. Both females and males that had participated in a staged aggressive interaction had similar changes in serotonin (5-HT) activity in telencephalic tissue punches as indicated by a lowered ratio of forebrain:brainstem 5-HT concentrations. In addition, both females and males had elevated plasma corticosterone (B) after an aggressive interaction when compared to controls. The only difference detected between males and females was that females had a higher ratio of forebrain:brainstem norepinephrine (NE) concentrations throughout the brain compared to males. Together, these data indicate that acute neural and hormonal responses that accompany aggressive interactions in females are similar to those in males.

• Publication year

  2000

• Venue

  Physiology and Behavior

• Publication date

  2000-11-01

• Fields of study

  Biology, Medicine

• Identifiers
  DOI 10.1016/S0031-9384(00)00345-0PMID 11150570
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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