调节侵略性行为的半球间前额外动态:性别差异和与个人倾向的关联
Chiara Gramegna1, Maria Franca2, Nadia Bolognini3,4
1PhD Program in Neuroscience, School of Medicine and Surgery, University of Milano-Bicocca, Piazza Dell'Ateneo Nuovo 1, 20126, Milan, Italy. c.gramegna@campus.unimib.it.
Cognitive, affective & behavioral neuroscience
|April 11, 2025
概括
这项研究发现,通过通过直流刺激 (tDCS) 刺激右脊侧前额皮层 (dlPFC),男性的侵略性增加. 这表明性别特定的大脑机制会影响侵略性行为.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 行为科学 行为科学
背景情况:
- 背侧前额皮质 (dlPFC) 在调节侵略性行为方面发挥着至关重要的作用.
- 跨直流刺激 (tDCS) 是一种调节dlPFC活动的方法.
- 在侵略控制中,dlPFC中的半球相互作用在很大程度上仍未被探索.
研究的目的:
- 研究双半球dlPFC tDCS对攻击性反应的影响.
- 探索侵略神经调节中的潜在性别差异.
- 检查个人差异 (侵略性,冲动性,同理心) 和tDCS效应之间的关系.
主要方法:
- 这是一项交叉,双盲,假控制的研究,涉及76名健康成年人.
- 应用双半球tDCS与交替的阳极/阴极刺激在左和右dlPFC.
- 使用点减去侵略范式和自我报告问卷来评估侵略性.
主要成果:
- 右阳极/左阴极dlPFC tDCS显著增加了男性的攻击性反应.
- 没有观察到女性或与相反刺激模式的显著影响.
- 在男性中观察到的效应与他们的基线侵略水平相关.
结论:
- 对dlPFC的神经调节对侵略性行为表现出性别特异性影响.
- dlPFC中的半球相互作用对侵略调节至关重要,每个半球都有不同的作用.
- 侵略性倾向的个体差异可以预测对前额神经调节的反应.
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