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在经证实和疑似抑郁症患者中明显的前额叶皮层变化,在情感自传记忆任务期间有不同的感知压力:一项fNIRS调查

Yan Zhang¹, Minxiao Zheng², Dongmei Zhu³

¹School of Education, Huazhong University of Science and Technology, China.

Journal of affective disorders

|November 3, 2024

概括

这项研究揭示了使用功能近红外光谱 (fNIRS) 在压力下确认和疑似抑郁症亚型中明显的脑激活模式. 研究结果表明,基于压力的抑郁症分类是可能的,为向治疗提供了新的途径.

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.
医疗成像医学成像

背景情况:

感知到的压力与抑郁症有关,但抑郁症亚型中的神经机制仍然不清楚.
目前没有针对基于压力的抑郁症亚型的现有分类.
了解这些机制对于开发有效的抑郁症治疗至关重要.

研究的目的:

通过使用fNIRS. 在不同的感知压力下调查确认和疑似抑郁症的神经机制.
为分类基于压力的抑郁症亚型提供神经生物学证据.
确定与压力相关的精神病理学的潜在目标.

主要方法:

551名年轻成年人 (256名健康对照,62名确诊患有抑郁症,233人怀疑患有抑郁症) 参加了这项研究.
采用了53通道的功能近红外光谱 (fNIRS) 系统.
在前额叶皮层 (PFC) 中的平均氧血球蛋白水平在情感-情感心理任务 (EAMT) 期间被测量.

主要成果:

证实和疑似抑郁症组在右额叶的血液动力活化较低,与高度失去控制的对照组相比.
经确认的高压抑郁症在右背侧PFC (dlPFC) 中表现出较高的激活,而不是在高失控状态下.
疑似抑郁症在高压下显示左侧布罗卡区域 (BA) 和前极皮质 (FPC) 的激活率较低,而高失控情况则较低.

结论:

不同的感知压力不平等地影响抑郁症亚型.
确定的和疑似的抑郁症代表着不同的亚型,在压力下具有独特的PFC激活模式.
fNIRS可以提供神经成像证据,支持基于压力的抑郁症分类,帮助精确的诊断和治疗.

关键词:

抑郁症的亚型抑郁症的亚型情感自传记忆任务记忆任务感知到的压力是压力.在FNIRS中使用.

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