在精神分裂症的听觉感官记忆中整合的异常时间窗口
Ren Asai1, Hirooki Yabe1,2, Tomiharu Hiruma1
1Department of Neuropsychiatry, Hirosaki University School of Medicine, Hirosaki, Japan.
Clinical EEG and neuroscience
|July 21, 2024
概括
精神分裂症患者表现出受损的听觉感官记忆,特别是在检测声音偏差后期在一个时间窗口的整合. 这种听觉处理缺陷可能导致精神分裂症的认知障碍.
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.
- 审计处理 审计处理
背景情况:
- 不匹配负面性 (MMN) 反映了基于感官记忆的自动听觉变化检测.
- 精神分裂症与各种认知缺陷有关,包括感官处理变化.
研究的目的:
- 调查精神分裂症患者在特定的时间整合窗口 (TWI) 内的听觉感官记忆中的时间功能偏差灵敏度.
- 检查磁性MMN (MMNm) 对遗漏的音段的反应,使复杂的声音与TWI持续时间相匹配.
主要方法:
- 在20名接受药物治疗的精神分裂症患者和20名健康对照组中测量了MMNm.
- 使用176毫秒复杂的声音,省略了一个音调段,目标TWI为160-170毫秒.
- 分析了MMNm大小和峰值延迟.
主要成果:
- 与对照组相比,精神分裂症患者的MMNm数量较小.
- 两组都显示了长时间的MMNm峰值延迟遗漏段,在精神分裂症患者中更为明显.
- 在精神分裂症的TWI后期,偏差检测受损.
结论:
- 听觉感官记忆机制,特别是在后期的TWI阶段,在精神分裂症中受到损害.
- 这种损伤可能是先前报告的精神分裂症MMN持续时间缺陷的基础.
- 感官记忆中的缺陷可能导致精神分裂症的扭曲感知和认知障碍.
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