核团聚:调节焦虑的近青少年的情绪过度泛化
M Vanessa Rivera Núñez1, Dana L McMakin2, Aaron T Mattfeld3
1Department of Neuroscience, Brown University, Providence, RI, 03912, USA.
Cognitive, affective & behavioral neuroscience
|October 10, 2024
概括
核心团聚 (RE) 在焦虑青年的负面过度泛化中起着关键作用. 这个大脑区域表现出改变的激活和连接,影响焦虑儿童的记忆特异性.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 儿童精神病学 儿童精神病学
背景情况:
- 儿童的焦虑 (在美国有440万) 出现在发育过程中,影响情绪和记忆.
- 在焦虑中常见的负面过度概括,涉及类似的对无害刺激的反应,类似于过去的厌恶经历.
- 核团聚 (RE) 与记忆特异性有关,但其在焦虑相关的过度泛化中的作用尚不清楚.
研究的目的:
- 调查焦虑青年负面过度泛化的神经生物学机制.
- 检查核团聚 (RE) 与中间前额皮质 (mPFC) 和海马体 (HPC) 的激活和功能连接.
主要方法:
- 对34名儿童 (9-14岁) 的二次数据分析,焦虑程度各不相同.
- 参与者对图像进行了评分 (负面,中性,积极),并通过目标和诱惑进行了记忆识别测试.
- 负面的过度概括是指将负面的诱标记为"旧"而不是中性诱.
主要成果:
- 对于相对于中性错误报警刺激的负面,观察到较高的RE激活和与Cornu Ammonis (CA) 1的功能连接性增加.
- 更高的焦虑严重程度与中性相对于负面刺激的RE-mPFC功能合减少相关.
- 探索性分析表明积极刺激的类似模式.
结论:
- 核心团聚 (RE) 对于焦虑青年的负面过度泛化至关重要.
- 研究结果突出了RE在焦虑背景下调节记忆特异性的作用.
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