整个大脑的关联模式反映了社会经济学
Scott Marek1,2,3,4,5, Meghan Rose Donohue4, Nicole Karcher4
1Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA.
bioRxiv : the preprint server for biology
|December 22, 2025
概括
社会经济地位 (SES) 显著影响大脑结构和功能,比智商更重要. 大脑-SES联系在不同的人群中是强大的,与大脑-IQ关联不同.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 心理学 心理学 心理学
背景情况:
- 以前的全脑关联研究 (BWAS) 主要将智商或精神病理等行为特征与大脑变异联系起来.
- 这些关联的解释性和通用性是有限的.
研究的目的:
- 通过将649个变量映射到大脑功能和结构中来扩展BWAS.
- 将BWAS地图与其他大脑数据类型进行比较,以增强注释.
- 确定人口水平大脑变异的主要驱动因素.
主要方法:
- 使用了青少年大脑认知发展 (ABCD) 研究数据集.
- 将649个变量映射到大脑结构和功能中.
- 结果的BWAS地图与现有的神经成像和暴露组数据进行了比较.
主要成果:
- 社会经济地位 (SES) 与静止状态功能连接 (RSFC) 和皮质厚度的关联最强.
- 一个与感觉和运动皮层相关的主要暴露组大脑模式解释了BWAS地图变异的34%.
- 调整为SES将大脑-智商关联降低了40%,而这些关联未能在更高的SES子样本中泛化.
结论:
- SES是人口水平大脑变化的主要轴,超过智商和精神病理学.
- 大脑-SES关联是强大的和可概括的,与大脑-IQ关联不同.
- 通过诸如压力和睡眠不足等因素,SES可能间接影响大脑结构和功能.
相关概念视频
Biological Influences on Intelligence
454
Intelligence is often thought to be linked to brain size, but the relationship is more complex than that. While brain size does correlate modestly with some abilities, like verbal skills, the connection is weaker for others, such as spatial reasoning. Other factors, like brain structure, also play crucial roles. For instance, despite Einstein's smaller-than-average brain, his parietal cortex, which is involved in spatial reasoning, was 15% wider, suggesting that neural density might matter...
454
Association Areas of the Cortex
8.7K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
8.7K
Impact of Social Context on Individuals
253
Social psychology examines how the real or imagined presence of others influences individuals' thoughts, feelings, and behaviors. A key concept in this field is the role of social context in shaping behavior. The same individual may act differently depending on the social setting, due to the varying expectations and norms associated with each environment. This context-dependent behavior illustrates the influence of social roles, which prescribe appropriate conduct in specific situations.Social...
253
Environmental Influences on Intelligence
834
Despite the strong genetic influence on traits like intelligence, environmental factors significantly shape outcomes. For example, while over 90% of height variation is due to genetic differences, environmental factors such as nutrition also have a notable impact. Similarly, for intelligence, changes in a child's surroundings can significantly alter their IQ. Research shows that enriched environments boost children's academic success and help them develop key cognitive skills. Children...
834
Causes of Social Behavior III: Biological and Environmental Influences
203
Social behavior is a complex phenomenon that arises from the interaction between biological predispositions and environmental influences. This intricate interplay shapes how individuals think, feel, and act in various social contexts. Understanding these mechanisms requires insights from psychology, neuroscience, genetics, and evolutionary theory.Environmental Influences on Social BehaviorEnvironmental factors, including temperature, odors, and visual stimuli, play a crucial role in shaping...
203
Brain Imaging
629
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
629


