Cited by 98Neuroendocrine regulation and behaviorNeurotransmitter Receptor Influence on BehaviorNeuropeptides and Animal Physiology

Effect of photoperiod on vasopressin-induced aggression in Syrian hamsters

Caldwell, Heather K., Albers, H.Elliott·2004·Hormones and Behavior

Abstract

Syrian hamsters are photoperiodic and become sexually quiescent when exposed to short "winter-like" photoperiods. In short photoperiods, male hamsters display significantly higher levels of aggression than males housed in long photoperiods. Arginine-vasopressin (AVP) within the anterior hypothalamus (AH) has been reported to modulate aggression in hamsters housed in long photoperiods. Previous studies have shown that AVP can facilitate aggression and its effects appear to be mediated by AVP V(1a) receptors (V(1a)R). In the present study, we investigated whether the increased levels of aggression observed after exposure to short photoperiod were the result of an increased responsiveness to AVP within the AH. Injections of AVP into the AH significantly increased aggression in hamsters housed in a long photoperiod, but had no effect in hamsters housed in a short photoperiod. In addition, injection of a V(1a)R antagonist into the AH significantly inhibited aggression in hamsters housed in long photoperiod, but had no effect in hamsters housed in a short photoperiod. These findings indicate that AVP within the AH increases aggression in hamsters housed in long photoperiods, but not in hamsters housed in short photoperiods.

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Crossref · 10.1016/j.yhbeh.2004.04.006

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Authors
Caldwell, H. K., & Albers, H. E.
Affiliations
Georgia State University (US)
Corresponding author
Albers, H.Elliott
Venue
Hormones and Behavior
Publisher
Elsevier BV
Published
2004-11
Volume
46
Issue
4
Pages
444-449
ISSN
0018-506X (ISSN-L)
OpenAlex
W1999973347
Cited by
97
References
29
Citations by year
2026: 1 · 2024: 1 · 2023: 3 · 2022: 4 · 2021: 5 · 2020: 5 · 2019: 7 · 2018: 3 · 2017: 3 · 2016: 4 · 2015: 5 · 2014: 8 · 2013: 7 · 2012: 7
FWCI
6.94
Type
journal article
Language
en
Open access
closed
Locations
  • Hormones and Behavior (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5s11ns037232-05)
  • National Institute of Mental Health (MH62641, R01MH062641)
  • National Institute of Neurological Disorders and Stroke (NS37232)
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
photoperiod, vasopressin, aggression, golden hamster, anterior hypothalamus, V1a receptor, V1a receptor antagonist, seasonal reproduction
MeSH terms
Aggression, Animals, Arginine Vasopressin, Cricetinae, Hormone Antagonists, Hypothalamus, Male, Mesocricetus, Microinjections, Photoperiod, Antidiuretic Hormone Receptor Antagonists

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