通过社会压力诱导的前额叶低活化与状态反比抑郁症状更强烈地相关
Isabell Int-Veen1, Andreas J Fallgatter2,3, Ann-Christine Ehlis2,3
1Department of Psychiatry and Psychotherapy, Tübingen Center for Mental Health (TüCMH), University Hospital of Tuebingen, Tübingen, Germany. isabell.int-veen@med.uni-tuebingen.de.
Scientific reports
|September 13, 2023
概括
患有抑郁症的患者在压力下表现出脑前额叶区域的脑活动减少. 想的思维,而不是抑郁本身,可能解释了下面的前额回形和后侧前额皮层中的这些神经差异.
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.
- 认知心理学 认知心理学
背景情况:
- 前额叶低活化是抑郁症患者的一致发现,但其与抑郁症的因果关系和反的作用尚不清楚.
- 了解抑郁症的神经基础和反的影响对于开发有针对性的干预措施至关重要.
研究的目的:
- 研究与健康对照组相比,抑郁症患者的压力反应的行为和神经相关性.
- 检查前额活动,抑郁症状和特征/状态反之间的关联.
- 为了确定状态反是否可以预测神经活动模式,而不依赖于诊断组.
主要方法:
- 利用功能近红外光谱 (fNIRS) 来测量65名健康对照和77名处于压力状态的抑郁患者的皮质氧化率.
- 分析了来自21个fNIRS通道的数据,涵盖下额 (IFG),后侧前额皮质 (DLPFC) 和体感协会皮质 (SAC).
- 使用重复测量MANOVAs来评估诊断组 (抑郁患者与健康对照) 和状态反的预测价值.
主要成果:
- 与健康对照人相比,抑郁症患者在压力下表现出右侧IFG和双边DLPFC中的皮质氧化增加明显较低.
- 低状态反的人,或者在压力下反没有增加的人,在更多的大脑区域显示出更大的皮质氧化增加.
- 在对表现进行校正后,在压力下神经活动中的群体差异 (抑郁患者与健康对照) 不再显著,而状态反小组仍然是不同的.
结论:
- 状态反,而不是单独的抑郁症诊断,似乎是与压力期间改变前额叶皮层氧化率相关的重要因素.
- 这些发现表明,针对反的干预措施可能有利于调节抑郁症患者的神经反应.
- 这项研究强调了在检查抑郁症的神经相关性时考虑反等认知因素的重要性.
相关概念视频
Stress and Mental Health
179
Chronic stress profoundly affects mental health, significantly influencing mood, behavior, and overall quality of life. Research closely links chronic stress with mental health conditions such as depression, anxiety, and substance use disorders. Ongoing exposure to stress can lead to physiological and psychological changes, initiating a cycle of emotional distress and maladaptive coping mechanisms.
Individuals with depression often experience challenges in both their personal and professional...
Individuals with depression often experience challenges in both their personal and professional...
179
Psychological Responses to Stress
74
Psychological responses to stress encompass the various cognitive and emotional reactions individuals experience when faced with challenging or threatening situations, such as a job loss. Prolonged exposure to stressors can disturb emotional balance, increasing negative emotions (e.g., anxiety and sadness) and diminishing positive emotions (e.g., joy and satisfaction). These persistent emotional shifts are associated with an increased risk of both physical illness and mental health issues, such...
74
Social Anxiety Disorder
50
Social anxiety disorder, also known as social phobia, is characterized by an intense fear of social situations where one might face humiliation, rejection, embarrassment, or negative evaluation. This disorder leads individuals to avoid activities like casual conversations, public speaking, or seemingly simple tasks such as eating, signing documents, or swimming, in public settings. Its impact extends beyond discomfort, often significantly interfering with daily functioning and quality of life.
50
Depressive Disorders: Etiology
119
Depressive disorders result from a complex interplay of biological, psychological, and sociocultural factors, each contributing uniquely to the development and persistence of the condition. Understanding these factors provides critical insight into the multifaceted nature of depression.
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...
119


