ANXIETY AND MATERNAL AGGRESSION IN HOUSE MICE (MUS-MUSCULUS) - A LOOK AT INTERINDIVIDUAL VARIABILITY
ANXIETY AND MATERNAL AGGRESSION IN HOUSE MICE (MUS-MUSCULUS) - A LOOK AT INTERINDIVIDUAL VARIABILITY
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DOI：
10.1037/0735-7036.105.3.295
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发表时间：
1991-09-01
影响因子：
1.4
通讯作者：
DAMATO, FR
中科院分区：
文献类型：
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作者：
MAESTRIPIERI, D;DAMATO, FR
假设进行了测试，小鼠母性是伴随着厌恶刺激的反应性降低，女性焦虑呈负相关的概率显示激烈的产后侵略形式。在未交配、怀孕或哺乳期时，在亮/暗选择测试中测试远交瑞士雌性小鼠的焦虑，然后在产后第7天测试母体攻击性（暴露于雄性入侵者5分钟）。与未交配动物相比，怀孕和哺乳期雌性动物的焦虑程度下降。此外。在先前的测试中，产后打架得分较高的女性焦虑程度较低，与生殖阶段无关。因此，产后攻击的个体间差异的一部分可能与个体对焦虑情况的感知和反应程度的差异有关。此外，较高的情绪化特征的C57 BL/6和DBA/2近交系可能是负责缺乏一个明确的展览，在这两个菌株的母亲的侵略。
The hypotheses were tested that mouse motherhood is accompanied by decreased reactivity to aversive stimuli and that female anxiety is inversely related to the probability of displaying intense forms of postpartum aggression. Outbred Swiss female mice were tested for anxiety in a light/dark choice test when virgin, pregnant, or lactating, and then tested for maternal aggression (5-min exposure to a male intruder) on postpartum Day 7. Anxiety declined in pregnant and lactating females when compared with virgin animals. Furthermore. females who displayed higher scores of postpartum fighting were less anxious in the previous test regardless of reproductive stage. Part of interindividual variability in postpartum aggression might thus be related to differences in the extent to which individuals perceive and react to anxiogenic situations. In addition, the higher emotionality characterizing the C57BL/6 and DBA/2 inbred strains may be responsible for the lack of a clear-cut exhibition of maternal aggression in these two strains.