压力对风险决策过程的影响
Yisi Liu1, Yan Wu1, Qiwei Yang1
1Sichuan Research Center of Applied Psychology, Chengdu Medical College, Chengdu, China.
Psychophysiology
|May 9, 2024
概括
压力通过改变神经活动和情绪反应,削弱奖励灵敏度,影响决策. 未来的研究应该集中在压力引起的情绪体验上,以了解风险偏好.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 决策科学 决策科学 决策科学
背景情况:
- 之前关于压力和冒险行为的研究尚未得出结论.
- 压力对决策产生影响的潜在神经机制仍然不清楚.
研究的目的:
- 调查外部压力对风险决策的影响.
- 探索与压力和决策相关的神经机制.
主要方法:
- 使用事件相关潜力 (ERP) 技术.
- 使用社会冷压测试和心理算术任务诱导的压力.
- 结合压力诱导与风险决策任务.
主要成果:
- 压力增加了生理性兴奋 (心率,血压) 和改变了情绪状态 (增强了负面情绪,减少了积极情绪).
- 压力没有显著改变风险偏好或选择时间,但减少了与反相关的消极性/奖励积极性,特别是在大结果方面.
- 压力降低了P3组件幅度,相对于失败的结果,相对于获胜的结果,表明改变了对结果评估的认知资源配置.
结论:
- 压力会削弱奖励灵敏度,这与奖励灵敏度假说相反.
- 压力改变了认知资源的分配,减少了积极结果的资源,可能是由于增强了负面情绪.
- 由压力引起的主观情绪体验对于理解压力和风险决策至关重要.
相关概念视频
Psychological Responses to Stress
54
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...
54
Introduction to Stress and Lifestyle
104
Stress is a multifaceted response to events perceived as challenging or threatening, highlighting physical, emotional, cognitive, and behavioral reactions. Physically, stress can lead to fatigue, sleep disruptions, and various health issues such as frequent colds, chest pains, and nausea. Emotionally, it can manifest as anxiety, depression, irritability, and anger triggered by both minor and major life events. Cognitively, it may result in difficulty in concentration, memory, and...
104
Stress and Mental Health
119
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...
119
Physiological Foundation of Stress
56
Stress triggers a coordinated physiological response involving the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis. This dual activation ensures that the body is prepared for both immediate and prolonged stress management. The process begins with the perception of a stressor. This initial phase activates the SNS, leading to the rapid release of adrenaline (epinephrine) from the adrenal glands.
Role of the Sympathetic Nervous System
Adrenaline triggers the...
Role of the Sympathetic Nervous System
Adrenaline triggers the...
56
Stress Prevention and Stress Management Techniques II
39
Personality types, particularly Type A and Type B, significantly influence how individuals respond to stress. These personality distinctions are marked by varying levels of ambition, competitiveness, and coping styles, all of which shape an individual's resilience to stressors.
Type A Personality: Driven and Easily Stressed
Individuals with Type A personalities are often highly competitive and ambitious and operate with a strong sense of urgency. Commonly labeled as...
Type A Personality: Driven and Easily Stressed
Individuals with Type A personalities are often highly competitive and ambitious and operate with a strong sense of urgency. Commonly labeled as...
39
Types of Stressors
144
A stressor is any event, condition, or stimulus that triggers stress and causes a physical or psychological response in the body. Stressors can be categorized into three main types: catastrophes; significant life changes; and daily hassles, including social stress. Each can be detrimental to physical and mental well-being.
Catastrophes
Catastrophes refer to large-scale, unpredictable events that create overwhelming stress and a sense of threat. Examples include natural disasters like...
Catastrophes
Catastrophes refer to large-scale, unpredictable events that create overwhelming stress and a sense of threat. Examples include natural disasters like...
144


