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相关概念视频

Human Genetics01:28

Human Genetics

612
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
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Polygenic Traits01:18

Polygenic Traits

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When more than one gene is responsible for a given phenotype, the trait is considered polygenic. Human height is a polygenic trait. Studies have uncovered hundreds of loci that influence height, and there are believed to be many more. Due to the high number of genes involved, as well as environmental and nutritional factors, height varies significantly within a given population. The distribution of height forms a bell-shaped curve, with relatively few individuals in the population at the...
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相关实验视频

Updated: Jul 19, 2025

Measurement of Fronto-limbic Activity Using an Emotional Oddball Task in Children with Familial High Risk for Schizophrenia
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Measurement of Fronto-limbic Activity Using an Emotional Oddball Task in Children with Familial High Risk for Schizophrenia

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多基因对气球模拟风险任务绩效的贡献

E L Nurmi1, C P Laughlin2, H de Wit3

  • 1Department of Psychiatry and Biobehavioral Sciences, University of California at Los Angeles, Los Angeles, CA, 90024, USA. enurmi@g.ucla.edu.

Molecular psychiatry
|August 15, 2023
PubMed
概括
此摘要是机器生成的。

这项研究使用气球模拟风险任务 (BART) 探索了风险决策的遗传基础. 研究结果揭示了冒险行为的多基因架构及其与大麻使用的关联.

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科学领域:

  • 神经科学是一个神经科学.
  • 行为遗传学 行为遗传学
  • 精神病学遗传学 精神病学遗传学

背景情况:

  • 风险决策是一种遗传性特征,在精神疾病中观察到.
  • 风险决策的遗传基础在很大程度上仍未被探索.
  • 气球模拟风险任务 (BART) 是一种经过验证的风险决策行为的衡量标准.

研究的目的:

  • 通过BART测量,研究风险决策的遗传架构.
  • 为了识别与BART性能相关的遗传变异.
  • 探索风险决策和精神病现象之间的遗传重叠.

主要方法:

  • 两个独立的欧洲血统样本进行了BART.
  • 构建了多基因风险评分 (PRS) 并对其复制进行了测试.
  • 一项全基因组MEGA分析将样本组合起来,以测试与自我报告措施和精神病诊断的遗传相关性.

主要成果:

  • 在复制样本 (r=0.13,p=1.2e-5) 中,PRS对BART性能预测任务性能.
  • 在IGSF21附近确定了一个全基因组显著的SNP (rs12023073),需要复制.
  • 对于大麻使用的PRS,但不是自我报告的风险承担或精神疾病状态,预测了BART行为.

结论:

  • 根据BART的评估,风险决策表现出一种多基因架构.
  • 影响BART表现的遗传因素与影响大麻使用的遗传因素重叠.
  • 需要进一步的研究来验证确定的遗传关联,并探索它们的功能影响.