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HUMAN BRIAN MAPPING:大脑形态学指标可预测过度使用互联网的严重程度

2022-04-02 MedSci原创 MedSci原创

大脑某些区域的变化比奖励系统和心理测量更具有预测性,对EIU更重要。

过度使用互联网(EIU)已成为一个健康问题,特别是在青少年和年轻人中。负面后果包括长期睡眠不足、身体健康恶化、难以集中精力工作以及与家庭成员的亲密关系减少,这些都对生活质量产生负面影响。由于以往的研究主要集中在奖赏系统和相应的大脑区域,大脑形态与过度网络使用之间的关系尚不明确。

Li Wan等在HUAMN BRAIN MAPPING杂志发表研究文章,旨在揭示(1)脑形态指标与脑损伤严重程度的关系;(2)共同因素对关系的影响;(3)奖赏系统和其他相关脑区在EIU预测方面的相对优势。

研究方案

该研究数据来自131名过度使用互联网的用户。心理测量包括互联网使用、生活质量、个性、精神疾病症状、冲动和思想压抑。用3T磁共振成像(MRI)对脑进行扫描,计算6种脑形态指标。采用Lasso回归方法选择预测因子。采用逐步线性回归的方法建立模型并对模型进行验证。

模型中剩余的变量为左侧中央前区(曲度)、左侧颞上回(表面积)、右侧楔叶(折叠指数)、右侧前扣带回喙突(折叠指数)和伤害回避。

线性回归模型、散点图和拟合线中的因素

独立变量是EIU在过去一年中最差一周的得分。

研究发现,除了奖赏系统外,大脑的形态指标,包括左侧中央前回(曲度)、左侧颞上回(表面积)、右侧楔叶(折叠指数)和右侧前扣带喙突(折叠指数),可以预测EIU的严重程度,表明大脑中存在广泛的变化。

 

线性回归模型、散点图和拟合线中的因素(奖励系统)

线性回归模型、散点图和拟合线中的因素(心理测量)

该研究得出结论,大脑某些区域的变化比奖励系统和心理测量更具有预测性,对EIU更重要。

原文出处

Brain morphology, harm avoidance, and the severity of excessive internet use. Li Wan,First published: 25 March 2022 https://doi.org/10.1002/hbm.25842

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