通过同步的背侧和腹侧前额叶皮层活动来促进认知重新评估的因果增强
Yuyao Tang1, Licheng Mo1, Zhilin Peng1
1Institute of Brain and Psychological Sciences, Sichuan Normal University.
Emotion (Washington, D.C.)
|February 20, 2025
概括
使用跨交替电流刺激 (tACS) 增强背侧前额皮层 (DLPFC) 和腹侧前额皮层 (VLPFC) 之间的神经同步,因果上改善了认知重新评估性能和情绪调节.
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
- 情感科学是一种情感科学.
背景情况:
- 认知重新评估依赖于背侧前额叶皮层 (DLPFC) 和腹侧前额叶皮层 (VLPFC).
- 在情绪调节中DLPFC-VLPFC协作的机制尚未完全理解.
- 神经同步可能在协调这些前额叶区域方面发挥关键作用.
研究的目的:
- 调查DLPFC和VLPFC在认知重新评估中的theta波段神经同步的因果作用.
- 为了确定调节DLPFC-VLPFC同步与跨交替电流刺激 (tACS) 是否会影响重新评估性能.
- 为了检查这些效应的特异性,重新评估与其他情绪调节策略相比.
主要方法:
- 两项实验使用跨交替电流刺激 (tACS) 来调节DLPFC和VLPFC之间的神经同步.
- 参与者在相位,反相位或假的tACS条件下执行认知重新评估任务.
- 实验2将tACS与脑电图 (EEG) 结合起来,并将分心任务作为控制.
主要成果:
- 阶段性tACS显著提高了重新评估的性能,并减少了感知到的困难.
- 在DLPFC和VLPFC之间同步的达频段振荡被相内tACS选择性增强.
- tACS诱导的同步改善了重新评估,由减少负面情绪和晚期积极潜力 (LPP) 幅度证明,但没有影响分心.
结论:
- 这项研究提供了第一个因果证据,即增强DLPFC-VLPFC同步性可以改善认知重新评估.
- 这些前额前部区域之间的甲波段神经同步对于通过重新评估来有效调节情绪至关重要.
- 针对大脑网络连接的神经调制技术为优化情绪调节提供了潜力.
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