连接特征的Connectome预测建模注意力正念
Isaac N Treves1,2, Aaron Kucyi3, Madelynn Park1,2
1McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA.
bioRxiv : the preprint server for biology
|July 19, 2024
概括
这项研究探讨了使用静止状态fMRI的特征正念的神经基础. 虽然整体特征正念缺乏预测神经模型,但"以意识行动"和"不判断"等特定方面显示出不同的大脑连接模式.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 认知科学 认知科学
背景情况:
- 属性正念,即倾向于当下时刻,非判断性的意识,与积极的心理健康有关.
- 特征正念的神经支尚未得到充分理解.
- 之前的fMRI研究已经确定了与默认模式 (DMN),前端对象 (FPN) 和突出网络的关联,但概括性和特异性尚不清楚.
研究的目的:
- 以迄今为止最大的静态fMRI数据集来研究特征正念的神经相关性.
- 确定特征正念及其组件的可概括的大脑连接模型.
- 探索正念神经模型与思维游荡之间的关系.
主要方法:
- 利用休息状态功能磁共振成像 (fMRI) 在367名成年人中,在三个独立样本中.
- 采用预先注册的连接组预测建模 (CPM) 来识别特征正念及其子尺度的神经预测器.
- 测试了在不同站点和扫描仪上识别的模型的概括性.
主要成果:
- 没有神经连接预测了整体特征正念.
- 对于"以意识行动" (涉及FPN) 和"不评判" (涉及DMN) 确定了明确的积极网络模型.
- 负网络模型,跨子尺度重叠,涉及广泛的连接 (体运动,视觉,DMN) 和优于积极模型的样本外概括. 预测与思维流浪模型相反相关.
结论:
- 初步证据表明,特征正念的特定方面具有不同的神经连接模型.
- 不完全的跨站点概括和有限的模型稳定性凸显了识别正念强大的大脑标志物的挑战.
- 未来的研究应该专注于针对正念的特定情感和认知组成部分的改进模型.
相关概念视频
Traits, Mood, and Subjective Wellbeing
69
Subjective well-being (SWB) refers to an individual's self-evaluation of their overall life satisfaction, happiness, and fulfillment. This multifaceted construct is typically assessed by analyzing the balance of positive and negative emotions alongside perceptions of life satisfaction. Personality traits such as neuroticism and extraversion are strongly associated with variations in SWB, offering critical insights into the underlying mechanisms of emotional well-being.
Neuroticism and...
Neuroticism and...
69
Trait Theory by Gordon Allport
600
Gordon Allport, often regarded as the father of American personality psychology, developed a theory that emphasized the importance of understanding people in their present lives rather than focusing on their past, as psychoanalysis did. Allport believed that personality should be studied in healthy, well-adjusted individuals rather than those with psychological problems. He was particularly interested in defining traits, which he saw as fundamental mental structures that guide behavior across...
600
Behavioral Genetics and Its Designs
351
Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
351
Classification of Neurotransmitters
2.8K
Neurotransmitters play a crucial role in the communication between neurons in the autonomic nervous system. Neurons in the autonomic nervous system can be cholinergic or adrenergic depending on the neurotransmitters synthesized. Cholinergic neurons use acetylcholine as their primary neurotransmitter. This includes all the preganglionic fibers of the sympathetic and pre- and postganglionic fibers of the parasympathetic nervous systems. In addition, neurons of the somatic nervous system also use...
2.8K
Modeling in Therapy
65
Modeling, a key technique in therapy, uses observational learning to help clients acquire and practice new skills by watching therapists demonstrate desired behaviors. This approach, rooted in Albert Bandura's concept of vicarious learning, plays a significant role in therapeutic interventions for various psychological conditions, including social anxiety, ADHD, and depression.
Participant Modeling
Participant modeling involves therapists demonstrating calm and effective behaviors in...
Participant Modeling
Participant modeling involves therapists demonstrating calm and effective behaviors in...
65


