第一次精神病发作之前的自杀行为:越来越广泛的灰色物质变化
概括
在第一次精神病发作之前有过自杀行为史的个人表现出明显的脑灰质减少. 这些发现可能有助于识别那些自杀风险较高的人.
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.
- 脑部成像 脑部成像
背景情况:
- 第一次发作精神病 (FEP) 的前现象阶段会增加自杀行为 (SBs) 的风险.
- 在这个阶段识别神经生物学标记对于早期干预至关重要.
研究的目的:
- 确定与FEP发作之前的SBs相关的特定结构性大脑异常.
- 探索FEP前SB和灰质 (GM) 变化之间的关系.
主要方法:
- 在SPM12.12中使用CAT12工具箱进行基于voxel的形态测量 (VBM).
- 分析灰色物质 (GM) 的体积差异.
- 对共同变量进行控制:性别,年龄,手性,内体积,抑郁症严重程度和整体认知功能.
主要成果:
- 在左上旋,背后环状皮质,前,和前小脑中发现了显著的GM减少.
- 在右桃体和左桃体中观察到进一步的减少.
- 这些区域涉及情绪调节,社会认知和疼痛处理.
结论:
- 前FEPSB与更广泛和更广泛的大脑转基因变异有关.
- 这些结构异常可能成为精神病风险人群中自杀风险的潜在早期生物标志物.
- 研究结果强调了特定大脑区域在精神病发作之前的认知和情绪失调中的作用.
更多相关视频
05:52Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
Published on: November 21, 2013
14.7K
05:14Standardized Data Acquisition for Neuromelanin-Sensitive Magnetic Resonance Imaging of the Substantia Nigra
Published on: September 8, 2021
3.2K
相关概念视频
Psychological and Sociocultural Causes of Schizophrenia
47
Schizophrenia, a complex psychiatric disorder, has been historically misunderstood. Early psychological theories attributed its origins to childhood trauma and unresponsive parenting. However, contemporary research largely rejects these notions, favoring the vulnerability-stress hypothesis. This model proposes that individuals with a genetic predisposition to schizophrenia may develop the disorder following exposure to significant environmental stressors. Notably, studies on high-risk...
47
Biological Causes of Schizophrenia
35
Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
35
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders
393
Schizophrenia is a neurodevelopmental disorder whose origins are rooted in complex genetic components. Despite our burgeoning understanding, the pathophysiology of this disorder remains incompletely deciphered.
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...
393
Schizophrenia
59
Schizophrenia, a term introduced by Swiss psychiatrist Eugen Bleuler in 1911, describes a severe psychological disorder marked by profound disruptions in attention, thought processes, language, emotion, and interpersonal relationships. The core feature of schizophrenia is psychosis — a state characterized by a fundamental detachment from reality. This disconnection manifests through distorted logic, impaired perception, and atypical behavior, severely affecting the lives of those...
59
Bipolar Disorder
47
Bipolar disorder is a chronic mental health condition marked by significant mood fluctuations, including episodes of mania and depression. Elevated energy levels, heightened mood or irritability, impulsive behavior, reduced sleep needs, rapid speech, racing thoughts, inflated self-esteem, and distractibility characterize mania. Individuals with bipolar disorder often alternate between depressive and manic states, with periods of emotional stability lasting an average of six months to a year.
47
Borderline Personality Disorder
36
Borderline Personality Disorder is a complex and multifaceted mental health condition characterized by pervasive instability in interpersonal relationships, self-image, emotions, and impulse control. This instability manifests in extreme emotional reactions, fear of abandonment, and self-destructive behaviors. The disorder significantly impacts daily functioning, often leading to distress in both personal and professional domains.
Genetic and Environmental Contributions
Borderline Personality...
Genetic and Environmental Contributions
Borderline Personality...
36
