从心理测量和fMRI模式识别中获得的见解
Lucas Rego Ramos1,2, Orlando Fernandes3,4, Tiago Arruda Sanchez3
1Programa de Pós-graduação em Neurociência Translacional - PGNET, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
Journal of magnetic resonance imaging : JMRI
|August 21, 2025
概括
长期使用阿雅华斯卡与增加心理性和改变情绪大脑反应有关. 这项研究利用fMRI和AI来检测与这些长期适应相关的神经模式.
科学领域:
- 神经科学
- 精神病学
- 药理学
背景情况:
- 亚马逊的迷幻饮料Ayahuasca含有DMT和β碳素,
- 之前的研究表明阿雅华斯卡使用可能会改变皮质厚度并增加神经可塑性,
研究的目的:
- 调查阿雅华斯卡对情绪处理的长期影响.
- 利用人工智能工具分析的心理测量尺度和fMRI数据来评估这些影响.
主要方法:
- 在38名健康男性参与者 (19名阿雅华斯卡使用者,19名对照者) 中进行了回顾性,横截式的病例对照研究.
- 在暗示情感处理任务中使用1.5特斯拉扫描仪获取的fMRI数据.
- 机器学习算法 (MKL,SVM,GPC/GPR) 分析了fMRI数据和心理测量分数 (自我弹性量表).
主要成果:
- 与非使用者相比,阿雅华斯卡的耐药性得分显著更高.
- 机器学习准确地区分了Ayahuasca使用者和对照者 (准确率为75%).
- 基于神经成像数据, 人工智能模型成功预测了个体的弹性得分.
结论:
- 长期使用阿雅华斯卡可能会提高心理性.
- 研究结果表明情感大脑的长期神经适应性是可检测的.
- fMRI和机器学习分析揭示了Ayahuasca使用者的不同神经模式.
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