基于努力的决策和负面症状的基础上的计算表型在一个跨诊断的严重精神疾病样本中的负面症状
Lauren Luther1,2, Jessica A Cooper3, Michael T Treadway3,4
1Department of Psychology, University of Georgia, Athens, GA, USA.
Molecular psychiatry
|February 14, 2026
概括
基于努力的决策能力受损 (EBDM) 与精神疾病中的负面症状有关. 这项研究发现,使用奖励信息的困难,而不是诊断,预测了负面症状,挑战了等效性理论.
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.
- 计算精神病学是一种计算精神病学.
背景情况:
- 基于努力的决策 (EBDM) 的障碍与各种精神病诊断中的负面症状有关.
- 平等的概念表明,不同的疾病可能会通过不同的EBDM机制导致类似的结果 (负面症状),但这仍然没有得到证实.
研究的目的:
- 调查不同精神疾病是否在EBDM中使用不同的计算过程.
- 为了确定是否共享EBDM机制是严重精神疾病范围内的负面症状的基础,无论诊断如何.
主要方法:
- 利用计算建模分析EBDM过程在一个大样本 (n=920) 包括精神分裂症,双相情感障碍,抑郁障碍,临床高危精神病和健康对照.
- 评估EBDM使用努力支出奖励任务,以及负症状和神经心理评估.
- 模拟EBDM行为,以区分依赖主观价值 (奖励大小/概率) 与偏见 (未使用奖励信息) 之间的区别.
主要成果:
- 计算模型揭示了诊断组之间的EBDM过程中的显著差异.
- 精神分裂症和第一发精神病组最适合于偏见模型,表明奖励大小和概率的使用减少.
- 在所有组中,偏见模型适合与更严重的负面症状和认知障碍有关,独立于诊断.
结论:
- 精神病和情绪谱系障碍表现出不同的EBDM方法.
- 在消极症状的发展中不支持等终性;奖励和概率信息的使用障碍是与消极症状相关的跨诊断EBDM机制.
更多相关视频
06:55An Unpredictable Chronic Mild Stress Protocol for Instigating Depressive Symptoms, Behavioral Changes and Negative Health Outcomes in Rodents
Published on: December 2, 2015
23.5K
07:51Hydra, a Computer-Based Platform for Aiding Clinicians in Cardiovascular Analysis and Diagnosis
Published on: September 26, 2018
8.1K
相关概念视频
Negative and Cognitive Symptoms of Schizophrenia
653
Negative symptoms of schizophrenia indicate a reduction or absence of typical behaviors and emotional responses found in healthy individuals, while positive symptoms reflect an excess or distortion of normal functioning.
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...
653
Classification of Illness
8.9K
The meaning of illness is individualized to each person who experiences an alteration in health. In contrast, disease is a medical term indicating a pathological change in the structure and function of the body or mind. It is a condition that has specific symptoms and boundaries.
An illness is a response to a disease in which the person's level of functioning is changed compared with a previous level. The general classification of illness includes acute and chronic.
Acute illness is severe...
An illness is a response to a disease in which the person's level of functioning is changed compared with a previous level. The general classification of illness includes acute and chronic.
Acute illness is severe...
8.9K
Factors Affecting Illness
5.5K
When a person's physical, emotional, intellectual, social development or spiritual functioning is compromised, this deviation from a healthy normal state is called illness. Illness creates stress that in turn harms individuals. Irritation, anger, denial, hopelessness, and fear are behavioral and emotional changes an individual experiences in the phases of illness. A variety of factors influence a person's health and well-being.
For instance, risk factors are connected to illness,...
For instance, risk factors are connected to illness,...
5.5K
Concepts of Health and Illness
18.5K
Health is a condition of the body, mind, and spirit where an individual remains free from illness. Similarly, wellness is an active state, including living a lifestyle that promotes physical, mental, and emotional health. Physical health is critical for the overall well-being and can be affected by lifestyle, activity level, diet, and behavior. The highest attainable standard of health is a fundamental and universal human right. Consider Lisa, a fifteen-year-old born with congenital...
18.5K
Dimensions of Health and Illness
11.5K
The factors influencing the health-illness continuum can be internal or external and may or may not be under conscious control. They are related to the following eight human dimensions, and each dimension is interrelated to one other.
11.5K
Stress and Mental Health
969
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...
969
