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Aggression, body temperature, and stress ulcer.

G P Vincent, W P Paré, J E Prenatt

    Physiology & Behavior
    |February 1, 1984
    PubMed
    Summary
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    Aggressive behavior in female rats reduced stress-induced gastric lesions by helping maintain body temperature during restraint and cold exposure. This suggests aggression

    Area of Science:

    • Physiology
    • Animal Behavior
    • Gastroenterology

    Background:

    • Stress can induce gastric lesions in rats.
    • Aggression may influence physiological responses to stress.

    Purpose of the Study:

    • To investigate the protective effect of aggression on stress-induced gastric lesions in female rats.
    • To determine if aggression influences core body temperature during restraint and cold exposure.

    Main Methods:

    • Female rats were exposed to supine restraint and cold.
    • One group had access to an aggressive biting response (nylon brush), while controls did not.
    • Core body temperature was monitored.

    Main Results:

    • Rats with access to aggression developed fewer gastric lesions compared to controls.

    Related Experiment Videos

  • Aggression was associated with better maintenance of core body temperature.
  • These findings were replicated in a second study with repeated restraint sessions.

    • Conclusions:

    • Aggression can protect against stress-induced gastric lesions.
    • The protective effect appears linked to mitigating hypothermia during stress.
    • The affective component of aggression may not be the primary protective factor.