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相关概念视频

Functions of Connective Tissues01:17

Functions of Connective Tissues

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Connective tissues perform a broad range of functions in the body. Their primary function is to connect and link different tissues in the body and act as packaging material between tissues. The areolar tissue, a connective tissue prototype, commonly cements various tissue types in diverse body organs. In contrast, adipose tissue cushions internal organs while insulating the body from heat loss.
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Disorders of Acid-Base Balance01:29

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The human body maintains a precise pH range of arterial blood between 7.35 and 7.45. Deviations result in either acidosis (pH < 7.35) or alkalosis (pH > 7.45). These conditions are further classified as respiratory or metabolic disorders based on their underlying cause.
Respiratory Acidosis and Alkalosis
Respiratory acidosis occurs due to an increase in the partial pressure of carbon dioxide PCO2 in the blood. It often arises from shallow breathing or impaired gas exchange caused by...
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Review and Preview

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In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...
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Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...
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Intrinsically Disordered Proteins02:18

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Intrinsically disordered proteins are a group of proteins that do not fold into specific three-dimensional structures. Their structural flexibility allows them to complement ordered proteins to perform functions that are inaccessible to rigid structures. They are more common in eukaryotes than prokaryotes and may either be exclusively intrinsically disordered or hybrid proteins, consisting of a mix of ordered and disordered regions. The absence of a rigid structure in these proteins can be...
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Scientists always try their best to record measurements with the utmost accuracy and precision. However, sometimes errors do occur. These errors can be random or systematic. Random errors are observed due to the inconsistency or fluctuation in the measurement process, or variations in the quantity itself that is being measured. Such errors fluctuate from being greater than or less than the true value in repeated measurements. Consider a scientist measuring the length of an earthworm using a...
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相关实验视频

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互联网游戏障碍中的基于任务的功能连接:系统性审查

James Stevenson1, Rebecca Harding1, Shelan Ofori1

  • 1Clinical Psychopharmacology Unit, University College London, Gower St., London, UK.

Progress in neuro-psychopharmacology & biological psychiatry
|February 10, 2026
PubMed
概括

互联网游戏障碍 (IGD) 显示了大脑连接的改变,影响了奖励和控制网络. 这些功能连接 (FC) 变化与成模型保持一致,但需要更多的研究来概括.

关键词:
吸毒成 吸毒成 是一种成.的反应性 的反应性功能连接性的功能连接性.游戏 游戏 游戏 游戏 游戏国际政府部门部门的IGD.基于任务的基于任务的任务功能磁力共振成像 (fMRI) 是一种功能共振成像.

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科学领域:

  • 神经科学是一个神经科学.
  • 精神病学是一个精神病学.
  • 成研究 研究成研究

背景情况:

  • 互联网游戏障碍 (IGD) 是一个日益严重的公共卫生问题,其神经基础不清楚.
  • 过度玩游戏会导致痛苦和功能障碍,需要了解大脑机制.
  • 异常的功能连接 (FC) 与IGD的病态行为和成模型有关.

研究的目的:

  • 系统地审查互联网游戏障碍 (IGD) 中的功能连接 (FC) 变化.
  • 调查FC变化如何与IGD的行为症状有关.
  • 评估IGD神经生物学与已建立的成模型的一致性.

主要方法:

  • 对29项关于IGD功能连接 (FC) 的研究 (2013-2024) 的系统审查.
  • 分析了来自1,129名IGD参与者和924名对照者的基于任务的fMRI数据.
  • 任务的分类是奖励反应,执行控制和冲动性/冒险.

主要成果:

  • IGD个体表现出奖励网络FC的增加,通常与执行控制网络 (ECN) FC的减少有关.
  • 在IGD的执行控制任务中观察到ECN FC的不同增加和减少.
  • 较高的冲动性和风险承担与IGD中增加的奖励网络和ECN FC相关.

结论:

  • 阿伯兰特足球队是IGD的标志,具有多样化的连接模式.
  • 增加的FC可能代表补偿机制,而减少的FC则表明损失.
  • 地理偏见和方法异质性限制了概括性,需要研究共识.