A coherent pattern among social behavior, blood pressure, corticosterone and catecholamine measures in individual male rats

Dirk S. Fokkema*, Kitty Smit, J. van der Gugten, Jaap M. Koolhaas

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    89 Citations (Scopus)


    Behavioral and physiological responses of 18 chronically cannulated male TMD-S3 rats were assessed during various social interactions with conspecifics, both with and without the possibility for physical contact (social vs. psychosocial stimulation). Response magnitudes (behavior, blood pressure, plasma catecholamines) depend upon both the social environmental requirements (offense, defense, psychosocial stimulus following defense) and individual characteristics. The more competitive males generally reacted with higher responses of blood pressure and catecholamines than more passive rats. In addition, these competitive males had higher baseline levels of noradrenaline. The present experiment shows that male rats differ in the individual sympathetic tone and reactivity in relation to their behavior in a social environment.
    Original languageEnglish
    Pages (from-to)485-489
    Number of pages5
    JournalPhysiology & Behavior
    Issue number5
    Publication statusPublished - 1988


    • Noradrenaline
    • Adrenaline
    • Corticosterone
    • Blood pressure
    • Aggressive behavior

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