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Neuroendocrine responses in free-living female and male lizards after aggressive interactions
- Source :
- Physiology & Behavior. 71:373-381
- Publication Year :
- 2000
- Publisher :
- Elsevier BV, 2000.
-
Abstract
- 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.
- Subjects :
- Blood Glucose
Male
medicine.medical_specialty
medicine.medical_treatment
Animals, Wild
Experimental and Cognitive Psychology
Biology
Behavioral Neuroscience
chemistry.chemical_compound
Corticosterone
Internal medicine
medicine
Agonistic behaviour
Animals
Biogenic Monoamines
Neurotransmitter
Aggression
Brain
Lizards
Neurosecretory Systems
Hormones
Steroid hormone
Endocrinology
chemistry
Forebrain
Catecholamine
Female
medicine.symptom
medicine.drug
Hormone
Subjects
Details
- ISSN :
- 00319384
- Volume :
- 71
- Database :
- OpenAIRE
- Journal :
- Physiology & Behavior
- Accession number :
- edsair.doi.dedup.....20c3df7691c9e681207ec72068e711b4