在精神分裂症,双相情感障碍和严重抑郁症患者的工作记忆任务期间,功能连接组的任务相关可控性
Jun Yang1, Zhening Liu1, Feiwen Wang1
1Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China.
Research (Washington, D.C.)
|August 6, 2025
概括
由于大脑状态控制的改变,主要的精神疾病共享工作记忆缺陷. 精神分裂症显示大脑网络可控性的最显著损害,与突触和神经递质变化有关.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 认知科学 认知科学
背景情况:
- 在主要精神疾病 (MPD) 中,工作记忆缺陷很常见.
- 改变大脑状态过渡控制是这些工作记忆障碍的潜在神经基础.
- 了解大脑可控性的共同变化和疾病特异性变化至关重要.
研究的目的:
- 研究MPD患者工作记忆缺陷背后的大脑可控性的共同和疾病特异性变化.
- 检查可控性,临床/认知特征和遗传/神经递质基础之间的关系.
主要方法:
- 功能性磁共振成像 (fMRI) 数据来自精神分裂症 (SZ),双相情感障碍 (BD),严重抑郁障碍 (MDD) 和健康对照 (HCs) 的患者在n-back任务期间.
- 计算大脑区域的平均和模式可控性,以评估状态过渡能力.
- 研究基因和神经递质与改变可控性的关联.
主要成果:
- 与HC相比,所有MPD在前端对象网络中显示出减少的模式可控性,其中SZ表现出最显著的赤字.
- 在整个皮质网络 (包括感官,默认模式和突出网络) 中,SZ显示了平均和模态可控性的更广泛的减少.
- 受影响地区显示与突触生物学和神经递质 (谷氨酸/GABA,多巴胺,5-HT) 相关的偏好基因表达.
结论:
- 在MPD中,常见的可控性逐渐降低是工作记忆缺陷的基础.
- 这种缺陷在精神分裂症中尤为明显,与突触生物学和神经递质系统有关.
- 改变大脑状态转换的控制为精神疾病中的工作记忆障碍提供了一个跨诊断的神经机制.
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