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在多发性硬化症中,社会记忆缺陷及其神经相关性
André Magalhães1, Marta Morais1, Liliana Amorim2
1Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, Braga, Portugal.
Scientific reports
|November 10, 2025
概括
多发性硬化症 (MS) 患者表现出社会记忆受损,特别是回忆个人,尽管社会导航能力完好无损. 脑部成像显示,这种缺陷与前皮带/后皮带皮质体积减少和白质异常有关.
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
- 神经学 神经学
背景情况:
- 众所周知,多发性硬化症 (MS) 会影响认知功能.
- 社会记忆,即记住其他个体的信息的能力,在MS中以前没有被研究过.
研究的目的:
- 为了调查MS患者的社会记忆缺陷.
- 探索MS中社会记忆,大脑结构和白质完整性之间的关系.
主要方法:
- 26名多发性硬化患者和23名健康对照在fMRI期间执行了社会导航任务.
- 情节性社交记忆回忆通过问卷进行评估.
- 获得了结构性MRI (T1加权,T2-FLAIR) 和扩散张力成像.
主要成果:
- 与对照人群相比,多发性硬化患者的社会导航能力得到保护,但与对照人群相比,情节性社会记忆显著受损.
- 在基于任务的fMRI活动中没有发现任何显著的群体差异.
- 在MS中,社会记忆障碍与右前皮质/后皮带皮质 (PPCC) 体积的减少,T2-FLAIR损伤负荷的增加和白质完整性的降低 (较低的分数异型性,较高的平均扩散性) 相相关.
结论:
- 这项研究在MS中发现了社会记忆中的新型认知缺陷.
- 区域大脑体积 (PPCC) 和白质病理与MS的社会记忆障碍有关.
- 研究结果表明,在MS和其他神经精神疾病中,应该进一步研究社会认知.
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