响应抑制障碍与失眠障碍中前额状功能连接的改变有关:试点和非临床研究
Haobo Zhang1, Haonan Sun1, Jiatao Li1
1Sleep and NeuroImaging Center, Faculty of Psychology, Southwest University, Chongqing, 400715, China; Key Laboratory of Cognition and Personality (Southwest University), Ministry of Education, Chongqing, 400715, China.
失眠障碍会损害响应抑制,由较长的停止信号反应时间证明. 这种缺陷与失眠患者的前-上功能连接的改变有关.
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
- 睡眠医学 睡眠医学
背景情况:
- 失眠障碍 (ID) 是常见的,但其对抑制反应的影响尚不清楚.
- 前-状功能连接 (FC) 对于反应抑制至关重要,并且在ID中经常受到干扰.
- 这项研究研究了一大批患有失眠和没有失眠的个体样本中的响应抑制和前直径FC.
研究的目的:
- 为了确定失眠症状是否会影响反应抑制.
- 探索失眠中受损的反应抑制和前-状FC异常之间的关系.
主要方法:
- 115名患有ID的年轻人和160名健康对照 (HC) 接受了休息状态的fMRI.
- 参与者完成了停止信号任务 (SST),以评估反应抑制.
- 比较包括SST性能,灰色物质体积 (GMVs) 和前端-三角形电路连接.
主要成果:
- 与HC相比,ID患者的停止信号反应时间 (SSRT) 显着更长,这表明反应抑制受损.
- 鉴定组显示,右上额头 (SFG) 和左补充运动区域 (SMA) 的GMVs减少.
- 在ID中观察到改变的前额 - 状肌肉FC,包括SMA与其他区域之间的CF降低,以及右SFG与骨之间增加的FC,这与SSRT相关.
结论:
- 失眠障碍与显著受损的响应抑制有关.
- 异常的前-上功能连接可能是失眠患者的反应抑制缺陷的基础.
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