Intraspecific aggressiveness after lesions of midbrain raphe nuclei in rats.
Serotonin-depleting lesions of midbrain raphe (extensive lesions located within dorsal and partly median raphe muclei) induced intraspecific agressiveness in grouped Wistar male rats but failed to increase mouse-killing behaviour. Rats which had lesions in the lateral midbrain did not display intraspecific aggression nor mouse-killing activity. These animals showed unchanged levels of both serotonin and noradrenaline in the forebrain.
D000374:Aggression; D000818:Animals; D001522:Behavior, Animal; D006801:Humans; D008297:Male; D008636:Mesencephalon / Q000502:physiology*; D009638:Norepinephrine / Q000032:analysis; D051381:Rats; D012701:Serotonin / Q000032:analysis / Q000378:metabolism*
D012701:Serotonin; D009638:Norepinephrine