在损失框架下的冲动性个体差异的计算和神经基板
Keying Jiang1, Guang Zhao1, Qian Feng2
1Faculty of Psychology, Tianjin Normal University, Tianjin, China.
Human brain mapping
|August 10, 2024
概括
这项研究探讨了涉及损失的决策中的冲动性. 它发现神经活动,特别是漂移率,解释了人们如何处理潜在损失的个体差异.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 决策科学 决策科学 决策科学
背景情况:
- 时间间选择的个体差异通常与奖励回路,认知控制和前有关.
- 之前关于冲动机制的研究主要集中在收益上,忽视了损失领域.
研究的目的:
- 在损失领域内调查冲动性的计算神经基质.
- 扩大对超越增益领域的时间间选择机制的理解.
主要方法:
- 利用一个层次化的贝叶斯漂移-扩散模型 (DDM) 和主体间表示相似性分析 (IS-RSA).
- 在两个实验中 (N=155) 采用了修订过的时间间任务,操纵即时与延迟损失选项.
主要成果:
- 行为数据显示DDM漂移率和冲动性指数K之间的正相关性,在实验中复制.
- 神经成像显示,漂移速率调解了前额叶皮层/轨道前额叶皮层/前阴大脑特性与冲动性之间的关系.
- IS-RSA表示的漂移速度变化介于神经激活模式和冲动性的个体差异之间的关联.
结论:
- 神经机制,特别是漂移率,是损失领域内冲动性的个人差异的基础.
- 类似的冲动性水平与类似的价值处理模式相关,为理解与损失相关的决策提供了一个框架.
相关概念视频
Reason and Intuition
6.4K
The human brain processes information for decision-making using one of two routes: an intuitive system and a rational system (Epstein, 1994; popularized by Kahneman, 2011 as System 1 and System 2, respectively). The intuitive system is quick, impulsive, and operates with minimal effort, relying on emotions or habits to provide cues for what to do next, while the rational system is logical, analytical, deliberate, and methodical. Research in neuropsychology suggests that the...
6.4K
Attention-Deficit/Hyperactivity Disorder
50
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
50
Self-Discrepancy Theory
18.3K
One influential perspective on what motivates people's behavior is detailed in Tory Higgin's self-discrepancy theory (Higgins, 1987). He proposed that people hold disagreeing internal representations of themselves that lead to different emotional states.
18.3K


