增强的Beta2频段振荡 在精神分裂症患者和精神病子模型中表现出听觉幻觉
Shuo Ma1, Tianzhen Chen2, Wenjun Jia3
1Department of Neurosurgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200020, China.
Neuroscience bulletin
|August 23, 2023
概括
研究人员确定了一种特定的大脑波模式,即部区域β2波段功率升高,作为精神分裂症患者听觉幻觉 (AH) 的标志,以及相关的子模型. 这一发现可能有助于诊断和治疗HA.
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.
- 生物医学工程 生物医学工程
背景情况:
- 听觉幻觉 (AHs) 是精神分裂症的核心症状,显著影响患者的福祉和治疗疗效.
- 确定AH的客观生物标志物对于准确的诊断和有针对性的治疗干预至关重要.
研究的目的:
- 为了识别与精神分裂症听觉幻觉 (AHs) 相关的特定电脑电图 (EEG) 签名.
- 在精神病的动物模型中验证这种特征,并探索其治疗发展的潜力.
主要方法:
- 电脑电图 (EEG) 记录是从25名精神分裂症患者获得的,这些患者经历了复发性AHs.
- 分析了EEG数据的功率光谱密度,重点关注部区域的β2频段振荡.
- 一种非人类灵长类动物模型 (用甲基胺治疗的 rhesus 子),表现出类似精神病的行为,被用来验证这些发现.
主要成果:
- 与非幻觉期或听觉刺激相比,精神分裂症患者在AH期间在部区域显著增加β2带功率.
- 接受甲基胺治疗的子显示出时间β2带功率的增强,与暗示AHs的精神病类行为相关.
- 时间β2波段振荡的增强在人类患者和动物模型中一致.
结论:
- 时间β2频段振荡的升高是听觉幻觉 (AHs) 的可靠电脑学特征.
- 这一发现验证了一种非人类灵长类模型,用于研究AH和开发新型治疗方法.
- 鉴定到的特征为推进精神分裂症中耐火性AHs的闭环神经调节策略提供了潜力.
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